SLC16A1

UniProt ID: P53985
Organism: Homo sapiens
Review Status: COMPLETE
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Gene Description

SLC16A1 encodes monocarboxylate transporter 1 (MCT1), a 12-transmembrane major facilitator superfamily carrier that catalyses bidirectional, proton-coupled transport of monocarboxylates across the plasma membrane, chiefly L-lactate and pyruvate but also acetate, the ketone bodies acetoacetate and beta-hydroxybutyrate, branched-chain 2-oxo acids and, at low pH, monoprotonated succinate. Direction is set by the substrate and proton gradients, so MCT1 serves as a lactate exporter in glycolytic cells and an importer in oxidative tissues, contributing to the Cori cycle, lactate shuttles and intracellular pH. Delivery to and activity at the cell surface require the ancillary glycoprotein basigin (BSG/CD147) or embigin. MCT1 is widely expressed, with basolateral and apical pools in polarised epithelia, but is transcriptionally silenced ("disallowed") in pancreatic beta cells; promoter variants that de-repress it there allow pyruvate and lactate to stimulate insulin secretion, causing exercise-induced hyperinsulinism (HHF7). Loss-of-function variants cause MCT1 deficiency with recurrent ketoacidosis.

Existing Annotations Review

GO Term Evidence Action Reason
GO:0005515 protein binding
IPI
PMID:10921872
CD147 is tightly associated with lactate transporters MCT1 a...
REMOVE
Summary: Bare protein binding from interaction data (BSG/CD147 chaperone or high-throughput PDZ/SLC interactome screens).
Reason: Protein binding conveys no functional information. The interactions (e.g. the BSG ancillary-protein interaction needed for surface expression, PDZ-domain fragment binding) may well be real, but removal of this uninformative term does not mean the interaction is false; the functionally relevant BSG association is captured in core function descriptions.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
Expression at the cell surface
GO:0005515 protein binding
IPI
PMID:36115835
Quantitative fragmentomics allow affinity mapping of interac...
REMOVE
Summary: Bare protein binding from interaction data (BSG/CD147 chaperone or high-throughput PDZ/SLC interactome screens).
Reason: Protein binding conveys no functional information. The interactions (e.g. the BSG ancillary-protein interaction needed for surface expression, PDZ-domain fragment binding) may well be real, but removal of this uninformative term does not mean the interaction is false; the functionally relevant BSG association is captured in core function descriptions.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
Expression at the cell surface
GO:0005515 protein binding
IPI
PMID:36115835
Quantitative fragmentomics allow affinity mapping of interac...
REMOVE
Summary: Bare protein binding from interaction data (BSG/CD147 chaperone or high-throughput PDZ/SLC interactome screens).
Reason: Protein binding conveys no functional information. The interactions (e.g. the BSG ancillary-protein interaction needed for surface expression, PDZ-domain fragment binding) may well be real, but removal of this uninformative term does not mean the interaction is false; the functionally relevant BSG association is captured in core function descriptions.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
Expression at the cell surface
GO:0005515 protein binding
IPI
PMID:36115835
Quantitative fragmentomics allow affinity mapping of interac...
REMOVE
Summary: Bare protein binding from interaction data (BSG/CD147 chaperone or high-throughput PDZ/SLC interactome screens).
Reason: Protein binding conveys no functional information. The interactions (e.g. the BSG ancillary-protein interaction needed for surface expression, PDZ-domain fragment binding) may well be real, but removal of this uninformative term does not mean the interaction is false; the functionally relevant BSG association is captured in core function descriptions.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
Expression at the cell surface
GO:0005515 protein binding
IPI
PMID:36115835
Quantitative fragmentomics allow affinity mapping of interac...
REMOVE
Summary: Bare protein binding from interaction data (BSG/CD147 chaperone or high-throughput PDZ/SLC interactome screens).
Reason: Protein binding conveys no functional information. The interactions (e.g. the BSG ancillary-protein interaction needed for surface expression, PDZ-domain fragment binding) may well be real, but removal of this uninformative term does not mean the interaction is false; the functionally relevant BSG association is captured in core function descriptions.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
Expression at the cell surface
GO:0005515 protein binding
IPI
PMID:36115835
Quantitative fragmentomics allow affinity mapping of interac...
REMOVE
Summary: Bare protein binding from interaction data (BSG/CD147 chaperone or high-throughput PDZ/SLC interactome screens).
Reason: Protein binding conveys no functional information. The interactions (e.g. the BSG ancillary-protein interaction needed for surface expression, PDZ-domain fragment binding) may well be real, but removal of this uninformative term does not mean the interaction is false; the functionally relevant BSG association is captured in core function descriptions.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
Expression at the cell surface
GO:0005515 protein binding
IPI
PMID:36115835
Quantitative fragmentomics allow affinity mapping of interac...
REMOVE
Summary: Bare protein binding from interaction data (BSG/CD147 chaperone or high-throughput PDZ/SLC interactome screens).
Reason: Protein binding conveys no functional information. The interactions (e.g. the BSG ancillary-protein interaction needed for surface expression, PDZ-domain fragment binding) may well be real, but removal of this uninformative term does not mean the interaction is false; the functionally relevant BSG association is captured in core function descriptions.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
Expression at the cell surface
GO:0005515 protein binding
IPI
PMID:36115835
Quantitative fragmentomics allow affinity mapping of interac...
REMOVE
Summary: Bare protein binding from interaction data (BSG/CD147 chaperone or high-throughput PDZ/SLC interactome screens).
Reason: Protein binding conveys no functional information. The interactions (e.g. the BSG ancillary-protein interaction needed for surface expression, PDZ-domain fragment binding) may well be real, but removal of this uninformative term does not mean the interaction is false; the functionally relevant BSG association is captured in core function descriptions.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
Expression at the cell surface
GO:0005515 protein binding
IPI
PMID:36115835
Quantitative fragmentomics allow affinity mapping of interac...
REMOVE
Summary: Bare protein binding from interaction data (BSG/CD147 chaperone or high-throughput PDZ/SLC interactome screens).
Reason: Protein binding conveys no functional information. The interactions (e.g. the BSG ancillary-protein interaction needed for surface expression, PDZ-domain fragment binding) may well be real, but removal of this uninformative term does not mean the interaction is false; the functionally relevant BSG association is captured in core function descriptions.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
Expression at the cell surface
GO:0005515 protein binding
IPI
PMID:36115835
Quantitative fragmentomics allow affinity mapping of interac...
REMOVE
Summary: Bare protein binding from interaction data (BSG/CD147 chaperone or high-throughput PDZ/SLC interactome screens).
Reason: Protein binding conveys no functional information. The interactions (e.g. the BSG ancillary-protein interaction needed for surface expression, PDZ-domain fragment binding) may well be real, but removal of this uninformative term does not mean the interaction is false; the functionally relevant BSG association is captured in core function descriptions.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
Expression at the cell surface
GO:0005515 protein binding
IPI
PMID:36115835
Quantitative fragmentomics allow affinity mapping of interac...
REMOVE
Summary: Bare protein binding from interaction data (BSG/CD147 chaperone or high-throughput PDZ/SLC interactome screens).
Reason: Protein binding conveys no functional information. The interactions (e.g. the BSG ancillary-protein interaction needed for surface expression, PDZ-domain fragment binding) may well be real, but removal of this uninformative term does not mean the interaction is false; the functionally relevant BSG association is captured in core function descriptions.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
Expression at the cell surface
GO:0005515 protein binding
IPI
PMID:36115835
Quantitative fragmentomics allow affinity mapping of interac...
REMOVE
Summary: Bare protein binding from interaction data (BSG/CD147 chaperone or high-throughput PDZ/SLC interactome screens).
Reason: Protein binding conveys no functional information. The interactions (e.g. the BSG ancillary-protein interaction needed for surface expression, PDZ-domain fragment binding) may well be real, but removal of this uninformative term does not mean the interaction is false; the functionally relevant BSG association is captured in core function descriptions.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
Expression at the cell surface
GO:0005515 protein binding
IPI
PMID:36115835
Quantitative fragmentomics allow affinity mapping of interac...
REMOVE
Summary: Bare protein binding from interaction data (BSG/CD147 chaperone or high-throughput PDZ/SLC interactome screens).
Reason: Protein binding conveys no functional information. The interactions (e.g. the BSG ancillary-protein interaction needed for surface expression, PDZ-domain fragment binding) may well be real, but removal of this uninformative term does not mean the interaction is false; the functionally relevant BSG association is captured in core function descriptions.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
Expression at the cell surface
GO:0005515 protein binding
IPI
PMID:36115835
Quantitative fragmentomics allow affinity mapping of interac...
REMOVE
Summary: Bare protein binding from interaction data (BSG/CD147 chaperone or high-throughput PDZ/SLC interactome screens).
Reason: Protein binding conveys no functional information. The interactions (e.g. the BSG ancillary-protein interaction needed for surface expression, PDZ-domain fragment binding) may well be real, but removal of this uninformative term does not mean the interaction is false; the functionally relevant BSG association is captured in core function descriptions.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
Expression at the cell surface
GO:0005515 protein binding
IPI
PMID:36115835
Quantitative fragmentomics allow affinity mapping of interac...
REMOVE
Summary: Bare protein binding from interaction data (BSG/CD147 chaperone or high-throughput PDZ/SLC interactome screens).
Reason: Protein binding conveys no functional information. The interactions (e.g. the BSG ancillary-protein interaction needed for surface expression, PDZ-domain fragment binding) may well be real, but removal of this uninformative term does not mean the interaction is false; the functionally relevant BSG association is captured in core function descriptions.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
Expression at the cell surface
GO:0005515 protein binding
IPI
PMID:36115835
Quantitative fragmentomics allow affinity mapping of interac...
REMOVE
Summary: Bare protein binding from interaction data (BSG/CD147 chaperone or high-throughput PDZ/SLC interactome screens).
Reason: Protein binding conveys no functional information. The interactions (e.g. the BSG ancillary-protein interaction needed for surface expression, PDZ-domain fragment binding) may well be real, but removal of this uninformative term does not mean the interaction is false; the functionally relevant BSG association is captured in core function descriptions.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
Expression at the cell surface
GO:0005515 protein binding
IPI
PMID:36115835
Quantitative fragmentomics allow affinity mapping of interac...
REMOVE
Summary: Bare protein binding from interaction data (BSG/CD147 chaperone or high-throughput PDZ/SLC interactome screens).
Reason: Protein binding conveys no functional information. The interactions (e.g. the BSG ancillary-protein interaction needed for surface expression, PDZ-domain fragment binding) may well be real, but removal of this uninformative term does not mean the interaction is false; the functionally relevant BSG association is captured in core function descriptions.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
Expression at the cell surface
GO:0005515 protein binding
IPI
PMID:36115835
Quantitative fragmentomics allow affinity mapping of interac...
REMOVE
Summary: Bare protein binding from interaction data (BSG/CD147 chaperone or high-throughput PDZ/SLC interactome screens).
Reason: Protein binding conveys no functional information. The interactions (e.g. the BSG ancillary-protein interaction needed for surface expression, PDZ-domain fragment binding) may well be real, but removal of this uninformative term does not mean the interaction is false; the functionally relevant BSG association is captured in core function descriptions.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
Expression at the cell surface
GO:0005515 protein binding
IPI
PMID:36115835
Quantitative fragmentomics allow affinity mapping of interac...
REMOVE
Summary: Bare protein binding from interaction data (BSG/CD147 chaperone or high-throughput PDZ/SLC interactome screens).
Reason: Protein binding conveys no functional information. The interactions (e.g. the BSG ancillary-protein interaction needed for surface expression, PDZ-domain fragment binding) may well be real, but removal of this uninformative term does not mean the interaction is false; the functionally relevant BSG association is captured in core function descriptions.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
Expression at the cell surface
GO:0005515 protein binding
IPI
PMID:36115835
Quantitative fragmentomics allow affinity mapping of interac...
REMOVE
Summary: Bare protein binding from interaction data (BSG/CD147 chaperone or high-throughput PDZ/SLC interactome screens).
Reason: Protein binding conveys no functional information. The interactions (e.g. the BSG ancillary-protein interaction needed for surface expression, PDZ-domain fragment binding) may well be real, but removal of this uninformative term does not mean the interaction is false; the functionally relevant BSG association is captured in core function descriptions.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
Expression at the cell surface
GO:0005515 protein binding
IPI
PMID:36115835
Quantitative fragmentomics allow affinity mapping of interac...
REMOVE
Summary: Bare protein binding from interaction data (BSG/CD147 chaperone or high-throughput PDZ/SLC interactome screens).
Reason: Protein binding conveys no functional information. The interactions (e.g. the BSG ancillary-protein interaction needed for surface expression, PDZ-domain fragment binding) may well be real, but removal of this uninformative term does not mean the interaction is false; the functionally relevant BSG association is captured in core function descriptions.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
Expression at the cell surface
GO:0005515 protein binding
IPI
PMID:36115835
Quantitative fragmentomics allow affinity mapping of interac...
REMOVE
Summary: Bare protein binding from interaction data (BSG/CD147 chaperone or high-throughput PDZ/SLC interactome screens).
Reason: Protein binding conveys no functional information. The interactions (e.g. the BSG ancillary-protein interaction needed for surface expression, PDZ-domain fragment binding) may well be real, but removal of this uninformative term does not mean the interaction is false; the functionally relevant BSG association is captured in core function descriptions.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
Expression at the cell surface
GO:0005515 protein binding
IPI
PMID:36115835
Quantitative fragmentomics allow affinity mapping of interac...
REMOVE
Summary: Bare protein binding from interaction data (BSG/CD147 chaperone or high-throughput PDZ/SLC interactome screens).
Reason: Protein binding conveys no functional information. The interactions (e.g. the BSG ancillary-protein interaction needed for surface expression, PDZ-domain fragment binding) may well be real, but removal of this uninformative term does not mean the interaction is false; the functionally relevant BSG association is captured in core function descriptions.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
Expression at the cell surface
GO:0005515 protein binding
IPI
PMID:36115835
Quantitative fragmentomics allow affinity mapping of interac...
REMOVE
Summary: Bare protein binding from interaction data (BSG/CD147 chaperone or high-throughput PDZ/SLC interactome screens).
Reason: Protein binding conveys no functional information. The interactions (e.g. the BSG ancillary-protein interaction needed for surface expression, PDZ-domain fragment binding) may well be real, but removal of this uninformative term does not mean the interaction is false; the functionally relevant BSG association is captured in core function descriptions.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
Expression at the cell surface
GO:0005515 protein binding
IPI
PMID:40355756
The solute carrier superfamily interactome.
REMOVE
Summary: Bare protein binding from interaction data (BSG/CD147 chaperone or high-throughput PDZ/SLC interactome screens).
Reason: Protein binding conveys no functional information. The interactions (e.g. the BSG ancillary-protein interaction needed for surface expression, PDZ-domain fragment binding) may well be real, but removal of this uninformative term does not mean the interaction is false; the functionally relevant BSG association is captured in core function descriptions.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
Expression at the cell surface
GO:0005813 centrosome
IDA
PMID:23816619
The centriolar satellite protein SSX2IP promotes centrosome ...
UNDECIDED
Summary: Centrosome localization from a proteomic survey of spindle/centrosome proteins (SSX2IP study).
Reason: The cached full text of PMID:23816619 (PMC3704989, about SSX2IP) contains no mention of MCT1, SLC16A1 or monocarboxylate transport, so the supporting observation is presumably in supplementary data that is not cached and could not be checked. A centrosomal location would be unexpected for a 12-TM plasma-membrane MFS carrier, and nothing elsewhere supports it, but an experimental annotation is not removed on that basis alone.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
rapid transport across the plasma membrane of many monocarboxylates
GO:0005886 plasma membrane
EXP
PMID:10921872
CD147 is tightly associated with lactate transporters MCT1 a...
ACCEPT
Summary: Plasma membrane localization of MCT1, the site where it carries out proton-coupled monocarboxylate transport.
Reason: MCT1 is a multi-pass plasma membrane transporter; surface delivery requires BSG/EMB. Consistent with many independent experimental studies.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
rapid transport across the plasma membrane of many monocarboxylates
file:human/SLC16A1/SLC16A1-uniprot.txt
Expression at the cell surface
GO:0005886 plasma membrane
EXP
PMID:12946269
The loop between helix 4 and helix 5 in the monocarboxylate ...
ACCEPT
Summary: Plasma membrane localization of MCT1, the site where it carries out proton-coupled monocarboxylate transport.
Reason: MCT1 is a multi-pass plasma membrane transporter; surface delivery requires BSG/EMB. Consistent with many independent experimental studies.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
rapid transport across the plasma membrane of many monocarboxylates
file:human/SLC16A1/SLC16A1-uniprot.txt
Expression at the cell surface
GO:0005886 plasma membrane
EXP
PMID:17127621
The role of charged residues in the transmembrane helices of...
ACCEPT
Summary: Plasma membrane localization of MCT1, the site where it carries out proton-coupled monocarboxylate transport.
Reason: MCT1 is a multi-pass plasma membrane transporter; surface delivery requires BSG/EMB. Consistent with many independent experimental studies.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
rapid transport across the plasma membrane of many monocarboxylates
file:human/SLC16A1/SLC16A1-uniprot.txt
Expression at the cell surface
GO:0005886 plasma membrane
IBA
GO_REF:0000033
ACCEPT
Summary: Plasma membrane localization of MCT1, the site where it carries out proton-coupled monocarboxylate transport.
Reason: MCT1 is a multi-pass plasma membrane transporter; surface delivery requires BSG/EMB. Consistent with many independent experimental studies.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
rapid transport across the plasma membrane of many monocarboxylates
file:human/SLC16A1/SLC16A1-uniprot.txt
Expression at the cell surface
GO:0005886 plasma membrane
IDA
GO_REF:0000052
ACCEPT
Summary: Plasma membrane localization of MCT1, the site where it carries out proton-coupled monocarboxylate transport.
Reason: MCT1 is a multi-pass plasma membrane transporter; surface delivery requires BSG/EMB. Consistent with many independent experimental studies.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
rapid transport across the plasma membrane of many monocarboxylates
file:human/SLC16A1/SLC16A1-uniprot.txt
Expression at the cell surface
GO:0005886 plasma membrane
IDA
PMID:15505343
Presence and localization of three lactic acid transporters ...
ACCEPT
Summary: Plasma membrane localization of MCT1, the site where it carries out proton-coupled monocarboxylate transport.
Reason: MCT1 is a multi-pass plasma membrane transporter; surface delivery requires BSG/EMB. Consistent with many independent experimental studies.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
rapid transport across the plasma membrane of many monocarboxylates
file:human/SLC16A1/SLC16A1-uniprot.txt
Expression at the cell surface
GO:0005886 plasma membrane
IDA
PMID:23137377
Quantitative targeted absolute proteomic analysis of transpo...
ACCEPT
Summary: Plasma membrane localization of MCT1, the site where it carries out proton-coupled monocarboxylate transport.
Reason: MCT1 is a multi-pass plasma membrane transporter; surface delivery requires BSG/EMB. Consistent with many independent experimental studies.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
rapid transport across the plasma membrane of many monocarboxylates
file:human/SLC16A1/SLC16A1-uniprot.txt
Expression at the cell surface
GO:0005886 plasma membrane
IDA
PMID:24390345
Sequence variants in SLC16A11 are a common risk factor for t...
ACCEPT
Summary: Plasma membrane localization of MCT1, the site where it carries out proton-coupled monocarboxylate transport.
Reason: MCT1 is a multi-pass plasma membrane transporter; surface delivery requires BSG/EMB. Consistent with many independent experimental studies.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
rapid transport across the plasma membrane of many monocarboxylates
file:human/SLC16A1/SLC16A1-uniprot.txt
Expression at the cell surface
GO:0005886 plasma membrane
IDA
PMID:25371203
Functional characterization of 5-oxoproline transport via SL...
ACCEPT
Summary: Plasma membrane localization of MCT1, the site where it carries out proton-coupled monocarboxylate transport.
Reason: MCT1 is a multi-pass plasma membrane transporter; surface delivery requires BSG/EMB. Consistent with many independent experimental studies.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
rapid transport across the plasma membrane of many monocarboxylates
file:human/SLC16A1/SLC16A1-uniprot.txt
Expression at the cell surface
GO:0005886 plasma membrane
IDA
PMID:25957687
Rod-derived cone viability factor promotes cone survival by ...
ACCEPT
Summary: Plasma membrane localization of MCT1, the site where it carries out proton-coupled monocarboxylate transport.
Reason: MCT1 is a multi-pass plasma membrane transporter; surface delivery requires BSG/EMB. Consistent with many independent experimental studies.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
rapid transport across the plasma membrane of many monocarboxylates
file:human/SLC16A1/SLC16A1-uniprot.txt
Expression at the cell surface
GO:0005886 plasma membrane
IDA
PMID:28112518
LC-MS/MS Based Quantitation of ABC and SLC Transporter Prote...
ACCEPT
Summary: Plasma membrane localization of MCT1, the site where it carries out proton-coupled monocarboxylate transport.
Reason: MCT1 is a multi-pass plasma membrane transporter; surface delivery requires BSG/EMB. Consistent with many independent experimental studies.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
rapid transport across the plasma membrane of many monocarboxylates
file:human/SLC16A1/SLC16A1-uniprot.txt
Expression at the cell surface
GO:0005886 plasma membrane
IEA
GO_REF:0000120
ACCEPT
Summary: Plasma membrane localization of MCT1, the site where it carries out proton-coupled monocarboxylate transport.
Reason: MCT1 is a multi-pass plasma membrane transporter; surface delivery requires BSG/EMB. Consistent with many independent experimental studies.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
rapid transport across the plasma membrane of many monocarboxylates
file:human/SLC16A1/SLC16A1-uniprot.txt
Expression at the cell surface
GO:0005886 plasma membrane
ISS
GO_REF:0000024
ACCEPT
Summary: Plasma membrane localization of MCT1, the site where it carries out proton-coupled monocarboxylate transport.
Reason: MCT1 is a multi-pass plasma membrane transporter; surface delivery requires BSG/EMB. Consistent with many independent experimental studies.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
rapid transport across the plasma membrane of many monocarboxylates
file:human/SLC16A1/SLC16A1-uniprot.txt
Expression at the cell surface
GO:0005886 plasma membrane
ISS
GO_REF:0000024
ACCEPT
Summary: Plasma membrane localization of MCT1, the site where it carries out proton-coupled monocarboxylate transport.
Reason: MCT1 is a multi-pass plasma membrane transporter; surface delivery requires BSG/EMB. Consistent with many independent experimental studies.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
rapid transport across the plasma membrane of many monocarboxylates
file:human/SLC16A1/SLC16A1-uniprot.txt
Expression at the cell surface
GO:0005886 plasma membrane
TAS
Reactome:R-HSA-204392
ACCEPT
Summary: Plasma membrane localization of MCT1, the site where it carries out proton-coupled monocarboxylate transport.
Reason: MCT1 is a multi-pass plasma membrane transporter; surface delivery requires BSG/EMB. Consistent with many independent experimental studies.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
rapid transport across the plasma membrane of many monocarboxylates
file:human/SLC16A1/SLC16A1-uniprot.txt
Expression at the cell surface
GO:0005886 plasma membrane
TAS
Reactome:R-HSA-373867
ACCEPT
Summary: Plasma membrane localization of MCT1, the site where it carries out proton-coupled monocarboxylate transport.
Reason: MCT1 is a multi-pass plasma membrane transporter; surface delivery requires BSG/EMB. Consistent with many independent experimental studies.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
rapid transport across the plasma membrane of many monocarboxylates
file:human/SLC16A1/SLC16A1-uniprot.txt
Expression at the cell surface
GO:0005886 plasma membrane
TAS
Reactome:R-HSA-373875
ACCEPT
Summary: Plasma membrane localization of MCT1, the site where it carries out proton-coupled monocarboxylate transport.
Reason: MCT1 is a multi-pass plasma membrane transporter; surface delivery requires BSG/EMB. Consistent with many independent experimental studies.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
rapid transport across the plasma membrane of many monocarboxylates
file:human/SLC16A1/SLC16A1-uniprot.txt
Expression at the cell surface
GO:0005886 plasma membrane
TAS
Reactome:R-HSA-5624211
ACCEPT
Summary: Plasma membrane localization of MCT1, the site where it carries out proton-coupled monocarboxylate transport.
Reason: MCT1 is a multi-pass plasma membrane transporter; surface delivery requires BSG/EMB. Consistent with many independent experimental studies.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
rapid transport across the plasma membrane of many monocarboxylates
file:human/SLC16A1/SLC16A1-uniprot.txt
Expression at the cell surface
GO:0005886 plasma membrane
TAS
Reactome:R-HSA-9645220
ACCEPT
Summary: Plasma membrane localization of MCT1, the site where it carries out proton-coupled monocarboxylate transport.
Reason: MCT1 is a multi-pass plasma membrane transporter; surface delivery requires BSG/EMB. Consistent with many independent experimental studies.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
rapid transport across the plasma membrane of many monocarboxylates
file:human/SLC16A1/SLC16A1-uniprot.txt
Expression at the cell surface
GO:0006629 lipid metabolic process
IEA
GO_REF:0000107
MARK AS OVER ANNOTATED
Summary: Lipid metabolic process (Ensembl Compara electronic transfer).
Reason: MCT1 transports ketone bodies and short-chain fatty acids but performs no step of lipid metabolism; the term over-reaches from transport to metabolism.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
such as lactate, pyruvate, acetate and the ketone bodies acetoacetate
GO:0007098 centrosome cycle
IMP
PMID:23816619
The centriolar satellite protein SSX2IP promotes centrosome ...
UNDECIDED
Summary: Centrosome cycle (IMP) from the SSX2IP centrosome maturation study.
Reason: The cached full text of PMID:23816619 (PMC3704989, about SSX2IP) contains no mention of MCT1, SLC16A1 or monocarboxylate transport, so the phenotype behind this IMP is presumably in supplementary screen data that is not cached and could not be checked. No mechanism is known by which a plasma-membrane monocarboxylate transporter would act in the centrosome cycle, but an experimental annotation is not removed on that basis alone.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
Bidirectional proton-coupled monocarboxylate transporter
GO:0008028 monocarboxylic acid transmembrane transporter activity
IDA
PMID:25371203
Functional characterization of 5-oxoproline transport via SL...
ACCEPT
Summary: Monocarboxylic acid transmembrane transporter activity.
Reason: Core activity: MCT1 transports lactate, pyruvate, acetate and ketone bodies across the plasma membrane with a proton.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
Bidirectional proton-coupled monocarboxylate transporter
file:human/SLC16A1/SLC16A1-uniprot.txt
such as lactate, pyruvate, acetate and the ketone bodies acetoacetate
PMID:8124722
Lactate and pyruvate cross cell membranes via a monocarboxylate transporter
GO:0008028 monocarboxylic acid transmembrane transporter activity
IEA
GO_REF:0000120
ACCEPT
Summary: Monocarboxylic acid transmembrane transporter activity.
Reason: Core activity: MCT1 transports lactate, pyruvate, acetate and ketone bodies across the plasma membrane with a proton.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
Bidirectional proton-coupled monocarboxylate transporter
file:human/SLC16A1/SLC16A1-uniprot.txt
such as lactate, pyruvate, acetate and the ketone bodies acetoacetate
PMID:8124722
Lactate and pyruvate cross cell membranes via a monocarboxylate transporter
GO:0008028 monocarboxylic acid transmembrane transporter activity
ISS
GO_REF:0000024
ACCEPT
Summary: Monocarboxylic acid transmembrane transporter activity.
Reason: Core activity: MCT1 transports lactate, pyruvate, acetate and ketone bodies across the plasma membrane with a proton.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
Bidirectional proton-coupled monocarboxylate transporter
file:human/SLC16A1/SLC16A1-uniprot.txt
such as lactate, pyruvate, acetate and the ketone bodies acetoacetate
PMID:8124722
Lactate and pyruvate cross cell membranes via a monocarboxylate transporter
GO:0008028 monocarboxylic acid transmembrane transporter activity
TAS
PMID:8124722
Molecular characterization of a membrane transporter for lac...
ACCEPT
Summary: Monocarboxylic acid transmembrane transporter activity.
Reason: Core activity: MCT1 transports lactate, pyruvate, acetate and ketone bodies across the plasma membrane with a proton.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
Bidirectional proton-coupled monocarboxylate transporter
file:human/SLC16A1/SLC16A1-uniprot.txt
such as lactate, pyruvate, acetate and the ketone bodies acetoacetate
PMID:8124722
Lactate and pyruvate cross cell membranes via a monocarboxylate transporter
GO:0009925 basal plasma membrane
IDA
PMID:26854723
Butyric acid increases transepithelial transport of ferulic ...
KEEP AS NON CORE
Summary: Basal plasma membrane from the Caco-2 butyrate study.
Reason: Consistent with the basolateral localisation; a plasma membrane sub-domain and not separately core.
Supporting Evidence:
PMID:26854723
Immunofluorescence staining of cells revealed uniform
GO:0015129 lactate transmembrane transporter activity
IEA
GO_REF:0000120
ACCEPT
Summary: Lactate transmembrane transporter activity.
Reason: L-lactate is the best-characterised MCT1 substrate (Km ~5 mM); MCT1 is a major lactate exporter.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
such as lactate, pyruvate, acetate and the ketone bodies acetoacetate
file:human/SLC16A1/SLC16A1-uniprot.txt
major lactate exporter (By similarity)
GO:0015129 lactate transmembrane transporter activity
ISS
GO_REF:0000024
ACCEPT
Summary: Lactate transmembrane transporter activity.
Reason: L-lactate is the best-characterised MCT1 substrate (Km ~5 mM); MCT1 is a major lactate exporter.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
such as lactate, pyruvate, acetate and the ketone bodies acetoacetate
file:human/SLC16A1/SLC16A1-uniprot.txt
major lactate exporter (By similarity)
GO:0015129 lactate transmembrane transporter activity
TAS
PMID:25371203
Functional characterization of 5-oxoproline transport via SL...
ACCEPT
Summary: Lactate transmembrane transporter activity.
Reason: L-lactate is the best-characterised MCT1 substrate (Km ~5 mM); MCT1 is a major lactate exporter.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
such as lactate, pyruvate, acetate and the ketone bodies acetoacetate
file:human/SLC16A1/SLC16A1-uniprot.txt
major lactate exporter (By similarity)
GO:0015130 mevalonate transmembrane transporter activity
TAS
PMID:1429658
cDNA cloning of MEV, a mutant protein that facilitates cellu...
KEEP AS NON CORE
Summary: Mevalonate transmembrane transporter activity (TAS, MEV cloning paper).
Reason: The MEV paper describes a Phe360Cys gain-of-function MCT1 mutant (MEV) that transports mevalonate; wild-type MCT1 is not a physiological mevalonate transporter. Kept as non-core rather than removed because the curator's source reports the activity for this protein (mutant form).
Supporting Evidence:
PMID:1429658
cDNA cloning of MEV, a mutant protein that facilitates cellular uptake of
PMID:8124722
A Phe to Cys
GO:0015141 succinate transmembrane transporter activity
IDA
PMID:32946811
pH-Gated Succinate Secretion Regulates Muscle Remodeling in ...
ACCEPT
Summary: Succinate transmembrane transporter activity (IDA).
Reason: In acidified exercising muscle, succinate becomes monoprotonated and is exported by MCT1 (pH-gated succinate secretion).
Supporting Evidence:
PMID:32946811
succinate is rendered a transport substrate for monocarboxylate
file:human/SLC16A1/SLC16A1-uniprot.txt
Facilitates the protonated monocarboxylate form of succinate export,
GO:0015293 symporter activity
IEA
GO_REF:0000117
ACCEPT
Summary: Symporter activity (UniRule).
Reason: Correct general mechanism (H+-coupled symport); less specific than lactate:proton symporter.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
Bidirectional proton-coupled monocarboxylate transporter
GO:0015295 solute:proton symporter activity
IEA
GO_REF:0000107
ACCEPT
Summary: Solute:proton symporter activity.
Reason: Correct; MCT1 is a proton-coupled solute symporter.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
Bidirectional proton-coupled monocarboxylate transporter
GO:0015355 secondary active monocarboxylate transmembrane transporter activity
IEA
GO_REF:0000117
ACCEPT
Summary: Secondary active monocarboxylate transmembrane transporter activity.
Reason: Correct parent of the proton-coupled monocarboxylate symport; accepted (lactate:proton symporter is more specific).
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
Bidirectional proton-coupled monocarboxylate transporter
GO:0015650 lactate:proton symporter activity
IBA
GO_REF:0000033
ACCEPT
Summary: Lactate:proton symporter activity, the most precise description of MCT1 transport mechanism.
Reason: MCT1 cotransports L-lactate with H+ (Rhea:29415); proton symport is the defining MCT mechanism.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
Bidirectional proton-coupled monocarboxylate transporter
PMID:8124722
properties resemble those of the erythrocyte MCT, including proton symport
GO:0015650 lactate:proton symporter activity
IDA
PMID:12946269
The loop between helix 4 and helix 5 in the monocarboxylate ...
ACCEPT
Summary: Lactate:proton symporter activity, the most precise description of MCT1 transport mechanism.
Reason: MCT1 cotransports L-lactate with H+ (Rhea:29415); proton symport is the defining MCT mechanism.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
Bidirectional proton-coupled monocarboxylate transporter
PMID:8124722
properties resemble those of the erythrocyte MCT, including proton symport
GO:0015650 lactate:proton symporter activity
IEA
GO_REF:0000107
ACCEPT
Summary: Lactate:proton symporter activity, the most precise description of MCT1 transport mechanism.
Reason: MCT1 cotransports L-lactate with H+ (Rhea:29415); proton symport is the defining MCT mechanism.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
Bidirectional proton-coupled monocarboxylate transporter
PMID:8124722
properties resemble those of the erythrocyte MCT, including proton symport
GO:0015718 monocarboxylic acid transport
IDA
PMID:25371203
Functional characterization of 5-oxoproline transport via SL...
ACCEPT
Summary: Monocarboxylic acid transport.
Reason: Core process carried out by MCT1.
Supporting Evidence:
PMID:8124722
Lactate and pyruvate cross cell membranes via a monocarboxylate transporter
file:human/SLC16A1/SLC16A1-uniprot.txt
such as lactate, pyruvate, acetate and the ketone bodies acetoacetate
GO:0015718 monocarboxylic acid transport
IEA
GO_REF:0000120
ACCEPT
Summary: Monocarboxylic acid transport.
Reason: Core process carried out by MCT1.
Supporting Evidence:
PMID:8124722
Lactate and pyruvate cross cell membranes via a monocarboxylate transporter
file:human/SLC16A1/SLC16A1-uniprot.txt
such as lactate, pyruvate, acetate and the ketone bodies acetoacetate
GO:0015718 monocarboxylic acid transport
ISS
GO_REF:0000024
ACCEPT
Summary: Monocarboxylic acid transport.
Reason: Core process carried out by MCT1.
Supporting Evidence:
PMID:8124722
Lactate and pyruvate cross cell membranes via a monocarboxylate transporter
file:human/SLC16A1/SLC16A1-uniprot.txt
such as lactate, pyruvate, acetate and the ketone bodies acetoacetate
GO:0015718 monocarboxylic acid transport
TAS
PMID:8124722
Molecular characterization of a membrane transporter for lac...
ACCEPT
Summary: Monocarboxylic acid transport.
Reason: Core process carried out by MCT1.
Supporting Evidence:
PMID:8124722
Lactate and pyruvate cross cell membranes via a monocarboxylate transporter
file:human/SLC16A1/SLC16A1-uniprot.txt
such as lactate, pyruvate, acetate and the ketone bodies acetoacetate
GO:0015728 mevalonate transport
TAS
PMID:1429658
cDNA cloning of MEV, a mutant protein that facilitates cellu...
KEEP AS NON CORE
Summary: Mevalonate transport (TAS).
Reason: As for mevalonate transporter activity: a property of the MEV gain-of-function mutant, not a physiological wild-type process.
Supporting Evidence:
PMID:1429658
cDNA cloning of MEV, a mutant protein that facilitates cellular uptake of
GO:0016020 membrane
HDA
PMID:19946888
Defining the membrane proteome of NK cells.
ACCEPT
Summary: Generic membrane localization.
Reason: Correct but uninformative; MCT1 is an integral plasma membrane protein. Accepted as a non-controversial general location.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
rapid transport across the plasma membrane of many monocarboxylates
GO:0016020 membrane
IEA
GO_REF:0000002
ACCEPT
Summary: Generic membrane localization.
Reason: Correct but uninformative; MCT1 is an integral plasma membrane protein. Accepted as a non-controversial general location.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
rapid transport across the plasma membrane of many monocarboxylates
GO:0016020 membrane
TAS
PMID:1429658
cDNA cloning of MEV, a mutant protein that facilitates cellu...
ACCEPT
Summary: Generic membrane localization.
Reason: Correct but uninformative; MCT1 is an integral plasma membrane protein. Accepted as a non-controversial general location.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
rapid transport across the plasma membrane of many monocarboxylates
GO:0016020 membrane
TAS
PMID:8124722
Molecular characterization of a membrane transporter for lac...
ACCEPT
Summary: Generic membrane localization.
Reason: Correct but uninformative; MCT1 is an integral plasma membrane protein. Accepted as a non-controversial general location.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
rapid transport across the plasma membrane of many monocarboxylates
GO:0016323 basolateral plasma membrane
IBA
GO_REF:0000033
ACCEPT
Summary: Basolateral plasma membrane localization (e.g. intestinal and retinal pigment epithelium, blood-brain barrier).
Reason: MCT1 localises to the basolateral membrane of polarised epithelia where it exports lactate, as in its originally described intestinal epithelial distribution.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
Basolateral cell membrane
PMID:8124722
MCT1 is abundant in erythrocytes, cardiac muscle, and basolateral intestinal epithelium
GO:0016323 basolateral plasma membrane
IEA
GO_REF:0000120
ACCEPT
Summary: Basolateral plasma membrane localization (e.g. intestinal and retinal pigment epithelium, blood-brain barrier).
Reason: MCT1 localises to the basolateral membrane of polarised epithelia where it exports lactate, as in its originally described intestinal epithelial distribution.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
Basolateral cell membrane
PMID:8124722
MCT1 is abundant in erythrocytes, cardiac muscle, and basolateral intestinal epithelium
GO:0016323 basolateral plasma membrane
ISS
GO_REF:0000024
ACCEPT
Summary: Basolateral plasma membrane localization (e.g. intestinal and retinal pigment epithelium, blood-brain barrier).
Reason: MCT1 localises to the basolateral membrane of polarised epithelia where it exports lactate, as in its originally described intestinal epithelial distribution.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
Basolateral cell membrane
PMID:8124722
MCT1 is abundant in erythrocytes, cardiac muscle, and basolateral intestinal epithelium
GO:0016323 basolateral plasma membrane
ISS
PMID:18619525
Subcellular localization of transporters along the rat blood...
ACCEPT
Summary: Basolateral plasma membrane localization (e.g. intestinal and retinal pigment epithelium, blood-brain barrier).
Reason: MCT1 localises to the basolateral membrane of polarised epithelia where it exports lactate, as in its originally described intestinal epithelial distribution.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
Basolateral cell membrane
PMID:8124722
MCT1 is abundant in erythrocytes, cardiac muscle, and basolateral intestinal epithelium
GO:0016324 apical plasma membrane
IDA
PMID:15901598
Expression and membrane localization of MCT isoforms along t...
ACCEPT
Summary: Apical plasma membrane localization in polarised epithelia (intestine, RPE).
Reason: Experimentally observed apical membrane pool in several epithelia; a valid but tissue-dependent location of the transporter.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
Apical cell membrane
GO:0016324 apical plasma membrane
IDA
PMID:26854723
Butyric acid increases transepithelial transport of ferulic ...
ACCEPT
Summary: Apical plasma membrane localization in polarised epithelia (intestine, RPE).
Reason: Experimentally observed apical membrane pool in several epithelia; a valid but tissue-dependent location of the transporter.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
Apical cell membrane
GO:0016324 apical plasma membrane
IDA
PMID:31678436
The circadian clock regulates RPE-mediated lactate transport...
ACCEPT
Summary: Apical plasma membrane localization in polarised epithelia (intestine, RPE).
Reason: Experimentally observed apical membrane pool in several epithelia; a valid but tissue-dependent location of the transporter.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
Apical cell membrane
GO:0016324 apical plasma membrane
IDA
PMID:31791063
Quantitative Protein Expression in the Human Retinal Pigment...
ACCEPT
Summary: Apical plasma membrane localization in polarised epithelia (intestine, RPE).
Reason: Experimentally observed apical membrane pool in several epithelia; a valid but tissue-dependent location of the transporter.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
Apical cell membrane
GO:0016324 apical plasma membrane
IEA
GO_REF:0000120
ACCEPT
Summary: Apical plasma membrane localization in polarised epithelia (intestine, RPE).
Reason: Experimentally observed apical membrane pool in several epithelia; a valid but tissue-dependent location of the transporter.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
Apical cell membrane
GO:0016324 apical plasma membrane
ISS
PMID:18619525
Subcellular localization of transporters along the rat blood...
ACCEPT
Summary: Apical plasma membrane localization in polarised epithelia (intestine, RPE).
Reason: Experimentally observed apical membrane pool in several epithelia; a valid but tissue-dependent location of the transporter.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
Apical cell membrane
GO:0016328 lateral plasma membrane
IDA
PMID:26854723
Butyric acid increases transepithelial transport of ferulic ...
KEEP AS NON CORE
Summary: Lateral plasma membrane staining in Caco-2 cells.
Reason: Reported in a single Caco-2 study; a sub-domain of the plasma membrane location already accepted. Not core.
Supporting Evidence:
PMID:26854723
Immunofluorescence staining of cells revealed uniform
GO:0022857 transmembrane transporter activity
IEA
GO_REF:0000002
ACCEPT
Summary: Transmembrane transporter activity (InterPro).
Reason: Correct but very general; superseded by the specific monocarboxylate terms.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
Bidirectional proton-coupled monocarboxylate transporter
GO:0030054 cell junction
IDA
GO_REF:0000052
KEEP AS NON CORE
Summary: Cell junction localization from the Human Protein Atlas imaging.
Reason: HPA immunofluorescence; MCT1/BSG concentrate at intercalated discs in heart cells, so junctional enrichment is plausible but not a core location.
Supporting Evidence:
PMID:10921872
CD147 and MCT1 co-localize, concentrating at the
GO:0032094 response to food
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: Response to food (electronic from rodent studies).
Reason: Organismal physiological response in rodents (e.g. high-fat diet); indirect and non-core.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
lactate and pyruvate that contribute to the regulation of central
GO:0035873 lactate transmembrane transport
IEA
GO_REF:0000107
ACCEPT
Summary: Lactate transmembrane transport.
Reason: Core process.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
such as lactate, pyruvate, acetate and the ketone bodies acetoacetate
GO:0035879 plasma membrane lactate transport
IBA
GO_REF:0000033
ACCEPT
Summary: Plasma membrane lactate transport.
Reason: Most specific process term for MCT1 core function: lactate import/export across the plasma membrane.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
rapid transport across the plasma membrane of many monocarboxylates
file:human/SLC16A1/SLC16A1-uniprot.txt
major lactate exporter (By similarity)
GO:0035879 plasma membrane lactate transport
IEA
GO_REF:0000120
ACCEPT
Summary: Plasma membrane lactate transport.
Reason: Most specific process term for MCT1 core function: lactate import/export across the plasma membrane.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
rapid transport across the plasma membrane of many monocarboxylates
file:human/SLC16A1/SLC16A1-uniprot.txt
major lactate exporter (By similarity)
GO:0035879 plasma membrane lactate transport
ISS
GO_REF:0000024
ACCEPT
Summary: Plasma membrane lactate transport.
Reason: Most specific process term for MCT1 core function: lactate import/export across the plasma membrane.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
rapid transport across the plasma membrane of many monocarboxylates
file:human/SLC16A1/SLC16A1-uniprot.txt
major lactate exporter (By similarity)
GO:0035879 plasma membrane lactate transport
ISS
GO_REF:0000024
ACCEPT
Summary: Plasma membrane lactate transport.
Reason: Most specific process term for MCT1 core function: lactate import/export across the plasma membrane.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
rapid transport across the plasma membrane of many monocarboxylates
file:human/SLC16A1/SLC16A1-uniprot.txt
major lactate exporter (By similarity)
GO:0035879 plasma membrane lactate transport
TAS
PMID:25371203
Functional characterization of 5-oxoproline transport via SL...
ACCEPT
Summary: Plasma membrane lactate transport.
Reason: Most specific process term for MCT1 core function: lactate import/export across the plasma membrane.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
rapid transport across the plasma membrane of many monocarboxylates
file:human/SLC16A1/SLC16A1-uniprot.txt
major lactate exporter (By similarity)
GO:0042593 glucose homeostasis
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: Glucose homeostasis (electronic from mouse).
Reason: Mouse haploinsufficiency studies link MCT1 to systemic glucose/insulin regulation under high-fat diet; indirect consequence of monocarboxylate transport.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
lactate and pyruvate that contribute to the regulation of central
GO:0042802 identical protein binding
IEA
GO_REF:0000107
ACCEPT
Summary: Identical protein binding (electronic).
Reason: MCT1 forms homodimers in the BSG-MCT1 complex; low-information but not wrong. Accepted as non-core structural property.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
Expression at the cell surface
GO:0042867 pyruvate catabolic process
IEA
GO_REF:0000107
MARK AS OVER ANNOTATED
Summary: Pyruvate catabolic process (electronic from rodent).
Reason: MCT1 delivers pyruvate into or out of cells but does not catalyse its catabolism; transport is upstream of catabolism.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
such as lactate, pyruvate, acetate and the ketone bodies acetoacetate
GO:0045202 synapse
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: Synapse localization transferred electronically from rodent data.
Reason: MCT1 is expressed on neural/glial membranes in the brain (lactate shuttle); synaptic enrichment is not its defining location.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
rapid transport across the plasma membrane of many monocarboxylates
GO:0046943 carboxylic acid transmembrane transporter activity
IEA
GO_REF:0000107
ACCEPT
Summary: Carboxylic acid transmembrane transporter activity.
Reason: Correct parent term for monocarboxylate transport.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
such as lactate, pyruvate, acetate and the ketone bodies acetoacetate
GO:0046943 carboxylic acid transmembrane transporter activity
ISS
GO_REF:0000024
ACCEPT
Summary: Carboxylic acid transmembrane transporter activity.
Reason: Correct parent term for monocarboxylate transport.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
such as lactate, pyruvate, acetate and the ketone bodies acetoacetate
GO:0050796 regulation of insulin secretion
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: Regulation of insulin secretion (electronic from mouse).
Reason: MCT1 is normally a beta-cell "disallowed" gene; its expression in beta cells (as in HHF7) allows pyruvate/lactate to trigger insulin release. In normal physiology the effect on insulin secretion is indirect, via whole-body monocarboxylate fluxes.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
lactate and pyruvate that contribute to the regulation of central
PMID:17701893
induce SLC16A1 expression in beta cells, where this gene is not usually transcribed, permitting pyruvate uptake and pyruvate-stimulated insulin release despite ensuing hypoglycemia
GO:0051780 behavioral response to nutrient
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: Behavioral response to nutrient (electronic from rodent).
Reason: Organism-level phenotype in rodent models; indirect.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
lactate and pyruvate that contribute to the regulation of central
GO:0055085 transmembrane transport
IEA
GO_REF:0000002
ACCEPT
Summary: Transmembrane transport.
Reason: Correct, general.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
Bidirectional proton-coupled monocarboxylate transporter
GO:0070062 extracellular exosome
HDA
PMID:20458337
MHC class II-associated proteins in B-cell exosomes and pote...
KEEP AS NON CORE
Summary: Extracellular exosome (HDA, B-cell exosome proteomics).
Reason: Plasma membrane proteins are routinely detected in exosome proteomes; not a site of MCT1 function.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
rapid transport across the plasma membrane of many monocarboxylates
GO:0071422 succinate transmembrane transport
IDA
PMID:32946811
pH-Gated Succinate Secretion Regulates Muscle Remodeling in ...
KEEP AS NON CORE
Summary: Succinate transmembrane transport.
Reason: Real, but a context-specific (acidified muscle) extension of the core monocarboxylate transport function.
Supporting Evidence:
PMID:32946811
succinate is rendered a transport substrate for monocarboxylate
GO:0097434 succinate:proton symporter activity
EXP
PMID:32946811
pH-Gated Succinate Secretion Regulates Muscle Remodeling in ...
ACCEPT
Summary: Succinate:proton symporter activity (EXP).
Reason: Supported by the Reddy et al. study showing MCT1-mediated pH-gated succinate export; Rhea:29303.
Supporting Evidence:
PMID:32946811
succinate is rendered a transport substrate for monocarboxylate
file:human/SLC16A1/SLC16A1-uniprot.txt
Facilitates the protonated monocarboxylate form of succinate export,
GO:0150104 transport across blood-brain barrier
NAS
PMID:26590417
Establishment and Dysfunction of the Blood-Brain Barrier.
KEEP AS NON CORE
Summary: Transport across blood-brain barrier (NAS, reviews).
Reason: MCT1 is expressed in brain endothelium and moves monocarboxylates (lactate, ketone bodies) across the BBB; a tissue context of the core transport activity. Cited reviews are general BBB reviews.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
rapid transport across the plasma membrane of many monocarboxylates
GO:0150104 transport across blood-brain barrier
NAS
PMID:30280653
Blood-Brain Barrier: From Physiology to Disease and Back.
KEEP AS NON CORE
Summary: Transport across blood-brain barrier (NAS, reviews).
Reason: MCT1 is expressed in brain endothelium and moves monocarboxylates (lactate, ketone bodies) across the BBB; a tissue context of the core transport activity. Cited reviews are general BBB reviews.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
rapid transport across the plasma membrane of many monocarboxylates
GO:1901475 pyruvate transmembrane transport
IEA
GO_REF:0000107
ACCEPT
Summary: Pyruvate transmembrane transport.
Reason: MCT1 transports pyruvate (Rhea:64720). This is also the process that underlies exercise-induced hyperinsulinism when MCT1 is ectopically expressed in beta cells.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
such as lactate, pyruvate, acetate and the ketone bodies acetoacetate
PMID:17701893
induce SLC16A1 expression in beta cells, where this gene is not usually transcribed, permitting pyruvate uptake and pyruvate-stimulated insulin release despite ensuing hypoglycemia
GO:1902600 proton transmembrane transport
IEA
GO_REF:0000108
ACCEPT
Summary: Proton transmembrane transport (GO_REF:0000108, inferred from symporter activity).
Reason: Protons are co-transported with each monocarboxylate; a direct consequence of the symport mechanism.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
Bidirectional proton-coupled monocarboxylate transporter
GO:1905039 carboxylic acid transmembrane transport
IEA
GO_REF:0000107
ACCEPT
Summary: Carboxylic acid transmembrane transport.
Reason: Correct parent process.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
such as lactate, pyruvate, acetate and the ketone bodies acetoacetate
GO:1905039 carboxylic acid transmembrane transport
ISS
GO_REF:0000024
ACCEPT
Summary: Carboxylic acid transmembrane transport.
Reason: Correct parent process.
Supporting Evidence:
file:human/SLC16A1/SLC16A1-uniprot.txt
such as lactate, pyruvate, acetate and the ketone bodies acetoacetate

Core Functions

Proton-coupled symport of L-lactate and other monocarboxylates (pyruvate, ketone bodies, acetate) across the plasma membrane, in either direction according to substrate and proton gradients; requires the ancillary protein basigin for surface expression.

Supporting Evidence:
  • file:human/SLC16A1/SLC16A1-uniprot.txt
    Bidirectional proton-coupled monocarboxylate transporter
  • file:human/SLC16A1/SLC16A1-uniprot.txt
    such as lactate, pyruvate, acetate and the ketone bodies acetoacetate
  • PMID:8124722
    properties resemble those of the erythrocyte MCT, including proton symport

References

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Suggested Questions for Experts

Q: Which transcriptional or epigenetic mechanisms keep SLC16A1 silenced in pancreatic beta cells, and do the HHF7 promoter variants disrupt repressor binding or create activator sites?

Suggested Experiments

Experiment: Map the beta-cell-specific silencing element of SLC16A1 (e.g. CRISPR tiling of the promoter in human stem-cell-derived beta cells) and test whether HHF7 variants abolish repression, linking ectopic MCT1 expression quantitatively to pyruvate-stimulated insulin secretion.

Deep Research

Falcon

(SLC16A1-deep-research-falcon.md)

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πŸ“š Additional Documentation

Notes

(SLC16A1-notes.md)

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πŸ“„ View Raw YAML

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