HNF4A

UniProt ID: P41235
Organism: Homo sapiens
Review Status: COMPLETE
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Gene Description

HNF4A (hepatocyte nuclear factor 4-alpha, NR2A1) is an orphan nuclear receptor transcription factor expressed in liver, intestine, kidney and pancreatic islets. It binds DR1-type response elements in target promoters and enhancers as a homodimer and, through its fatty-acid-occupied ligand-binding domain and coactivator recruitment, constitutively activates transcription by RNA polymerase II. Its targets include apolipoprotein, bile-acid, gluconeogenic, drug-metabolism and coagulation-factor genes, making it a master regulator of hepatocyte differentiation and hepatic lipid and glucose metabolism; it also transrepresses CLOCK:BMAL1 to shape peripheral circadian rhythms. In beta cells it sustains the insulin-secretory gene program: heterozygous loss-of-function variants cause macrosomia with transient or persistent neonatal hyperinsulinaemic hypoglycaemia followed by maturity-onset diabetes of the young type 1 (MODY1), and a recurrent missense variant causes Fanconi renotubular syndrome with MODY. Multiple isoforms arise from two promoters (P1 and P2) and alternative splicing.

Existing Annotations Review

GO Term Evidence Action Reason
GO:0000785 chromatin
ISA
GO_REF:0000113
ACCEPT
Summary: Chromatin (ISA).
Reason: HNF4A binds chromatin at target regulatory elements genome-wide; appropriate location for a DNA-binding TF.
Supporting Evidence:
PMID:30530698
We define a central role for HNF4A in maintaining cell-autonomous circadian
GO:0000976 transcription cis-regulatory region binding
IDA
PMID:16488887
A Prospero-related homeodomain protein is a novel co-regulat...
ACCEPT
Summary: Transcription cis-regulatory region binding.
Reason: HNF4A is a sequence-specific DNA-binding nuclear receptor transcription factor that binds direct-repeat (DR1-type) response elements in target promoters and recruits RNA polymerase II; this is its core activity.
Supporting Evidence:
file:human/HNF4A/HNF4A-uniprot.txt
Transcriptional regulator which controls the expression of
PMID:7615825
which binds to the NHRRE,
GO:0000976 transcription cis-regulatory region binding
IEA
GO_REF:0000107
ACCEPT
Summary: Transcription cis-regulatory region binding.
Reason: HNF4A is a sequence-specific DNA-binding nuclear receptor transcription factor that binds direct-repeat (DR1-type) response elements in target promoters and recruits RNA polymerase II; this is its core activity.
Supporting Evidence:
file:human/HNF4A/HNF4A-uniprot.txt
Transcriptional regulator which controls the expression of
PMID:7615825
which binds to the NHRRE,
GO:0000978 RNA polymerase II cis-regulatory region sequence-specific DNA binding
IBA
GO_REF:0000033
ACCEPT
Summary: RNA polymerase II cis-regulatory region sequence-specific DNA binding.
Reason: HNF4A is a sequence-specific DNA-binding nuclear receptor transcription factor that binds direct-repeat (DR1-type) response elements in target promoters and recruits RNA polymerase II; this is its core activity.
Supporting Evidence:
file:human/HNF4A/HNF4A-uniprot.txt
Transcriptional regulator which controls the expression of
PMID:7615825
which binds to the NHRRE,
GO:0000978 RNA polymerase II cis-regulatory region sequence-specific DNA binding
IEA
GO_REF:0000120
ACCEPT
Summary: RNA polymerase II cis-regulatory region sequence-specific DNA binding.
Reason: HNF4A is a sequence-specific DNA-binding nuclear receptor transcription factor that binds direct-repeat (DR1-type) response elements in target promoters and recruits RNA polymerase II; this is its core activity.
Supporting Evidence:
file:human/HNF4A/HNF4A-uniprot.txt
Transcriptional regulator which controls the expression of
PMID:7615825
which binds to the NHRRE,
GO:0000981 DNA-binding transcription factor activity, RNA polymerase II-specific
IEA
GO_REF:0000107
ACCEPT
Summary: DNA-binding transcription factor activity, RNA polymerase II-specific.
Reason: HNF4A is a sequence-specific DNA-binding nuclear receptor transcription factor that binds direct-repeat (DR1-type) response elements in target promoters and recruits RNA polymerase II; this is its core activity.
Supporting Evidence:
file:human/HNF4A/HNF4A-uniprot.txt
Transcriptional regulator which controls the expression of
PMID:7615825
which binds to the NHRRE,
GO:0000981 DNA-binding transcription factor activity, RNA polymerase II-specific
ISA
GO_REF:0000113
ACCEPT
Summary: DNA-binding transcription factor activity, RNA polymerase II-specific.
Reason: HNF4A is a sequence-specific DNA-binding nuclear receptor transcription factor that binds direct-repeat (DR1-type) response elements in target promoters and recruits RNA polymerase II; this is its core activity.
Supporting Evidence:
file:human/HNF4A/HNF4A-uniprot.txt
Transcriptional regulator which controls the expression of
PMID:7615825
which binds to the NHRRE,
GO:0001228 DNA-binding transcription activator activity, RNA polymerase II-specific
IEA
GO_REF:0000107
ACCEPT
Summary: DNA-binding transcription activator activity, RNA polymerase II-specific.
Reason: HNF4A predominantly activates its targets (apolipoproteins, CYP7A1, PEPCK, hepatic and beta-cell genes) by recruiting coactivators and RNA polymerase II.
Supporting Evidence:
PMID:7615825
dramatically stimulates apoAI gene expression in Caco-2 cells but not in HepG2
file:human/HNF4A/HNF4A-uniprot.txt
progenitor cells, facilitating the recruitment of RNA pol II to the
GO:0001228 DNA-binding transcription activator activity, RNA polymerase II-specific
ISS
GO_REF:0000024
ACCEPT
Summary: DNA-binding transcription activator activity, RNA polymerase II-specific.
Reason: HNF4A predominantly activates its targets (apolipoproteins, CYP7A1, PEPCK, hepatic and beta-cell genes) by recruiting coactivators and RNA polymerase II.
Supporting Evidence:
PMID:7615825
dramatically stimulates apoAI gene expression in Caco-2 cells but not in HepG2
file:human/HNF4A/HNF4A-uniprot.txt
progenitor cells, facilitating the recruitment of RNA pol II to the
GO:0003677 DNA binding
IDA
PMID:10551874
Mitogen-activated protein kinase regulates transcription of ...
ACCEPT
Summary: DNA binding (IDA, EMSA on apolipoprotein promoters).
Reason: Correct; HNF4A binds nuclear hormone receptor response elements. Less specific than the sequence-specific terms.
Supporting Evidence:
PMID:10551874
The major protein binding to this site was identified
PMID:7615825
which binds to the NHRRE,
GO:0003677 DNA binding
IDA
PMID:7615825
Intestinal apolipoprotein AI gene transcription is regulated...
ACCEPT
Summary: DNA binding (IDA, EMSA on apolipoprotein promoters).
Reason: Correct; HNF4A binds nuclear hormone receptor response elements. Less specific than the sequence-specific terms.
Supporting Evidence:
PMID:10551874
The major protein binding to this site was identified
PMID:7615825
which binds to the NHRRE,
GO:0003677 DNA binding
IEA
GO_REF:0000107
ACCEPT
Summary: DNA binding (IDA, EMSA on apolipoprotein promoters).
Reason: Correct; HNF4A binds nuclear hormone receptor response elements. Less specific than the sequence-specific terms.
Supporting Evidence:
PMID:10551874
The major protein binding to this site was identified
PMID:7615825
which binds to the NHRRE,
GO:0003682 chromatin binding
IEA
GO_REF:0000107
ACCEPT
Summary: Chromatin binding (electronic).
Reason: HNF4A occupies chromatin at thousands of sites; acceptable general term.
Supporting Evidence:
PMID:30530698
We define a central role for HNF4A in maintaining cell-autonomous circadian
GO:0003700 DNA-binding transcription factor activity
IDA
PMID:10330009
Regulation of alpha1-antitrypsin gene expression in human in...
ACCEPT
Summary: DNA-binding transcription factor activity.
Reason: HNF4A is a sequence-specific DNA-binding nuclear receptor transcription factor that binds direct-repeat (DR1-type) response elements in target promoters and recruits RNA polymerase II; this is its core activity.
Supporting Evidence:
file:human/HNF4A/HNF4A-uniprot.txt
Transcriptional regulator which controls the expression of
PMID:7615825
which binds to the NHRRE,
GO:0003700 DNA-binding transcription factor activity
IDA
PMID:12911579
Functional characterization of transcription factor binding ...
ACCEPT
Summary: DNA-binding transcription factor activity.
Reason: HNF4A is a sequence-specific DNA-binding nuclear receptor transcription factor that binds direct-repeat (DR1-type) response elements in target promoters and recruits RNA polymerase II; this is its core activity.
Supporting Evidence:
file:human/HNF4A/HNF4A-uniprot.txt
Transcriptional regulator which controls the expression of
PMID:7615825
which binds to the NHRRE,
GO:0003700 DNA-binding transcription factor activity
IDA
PMID:16488887
A Prospero-related homeodomain protein is a novel co-regulat...
ACCEPT
Summary: DNA-binding transcription factor activity.
Reason: HNF4A is a sequence-specific DNA-binding nuclear receptor transcription factor that binds direct-repeat (DR1-type) response elements in target promoters and recruits RNA polymerase II; this is its core activity.
Supporting Evidence:
file:human/HNF4A/HNF4A-uniprot.txt
Transcriptional regulator which controls the expression of
PMID:7615825
which binds to the NHRRE,
GO:0003700 DNA-binding transcription factor activity
IDA
PMID:7615825
Intestinal apolipoprotein AI gene transcription is regulated...
ACCEPT
Summary: DNA-binding transcription factor activity.
Reason: HNF4A is a sequence-specific DNA-binding nuclear receptor transcription factor that binds direct-repeat (DR1-type) response elements in target promoters and recruits RNA polymerase II; this is its core activity.
Supporting Evidence:
file:human/HNF4A/HNF4A-uniprot.txt
Transcriptional regulator which controls the expression of
PMID:7615825
which binds to the NHRRE,
GO:0003700 DNA-binding transcription factor activity
IEA
GO_REF:0000120
ACCEPT
Summary: DNA-binding transcription factor activity.
Reason: HNF4A is a sequence-specific DNA-binding nuclear receptor transcription factor that binds direct-repeat (DR1-type) response elements in target promoters and recruits RNA polymerase II; this is its core activity.
Supporting Evidence:
file:human/HNF4A/HNF4A-uniprot.txt
Transcriptional regulator which controls the expression of
PMID:7615825
which binds to the NHRRE,
GO:0004879 nuclear receptor activity
IBA
GO_REF:0000033
ACCEPT
Summary: Nuclear receptor activity.
Reason: HNF4A is an orphan member of the nuclear receptor superfamily (NR2A1) whose ligand-binding domain constitutively binds fatty acids; the nuclear receptor term is the most precise MF.
Supporting Evidence:
PMID:12193589
fatty acids are endogenous ligands for HNF4 alpha
PMID:12220494
Hepatocyte nuclear factor 4 is a transcription factor that constitutively binds
GO:0004879 nuclear receptor activity
IDA
PMID:12193589
Crystal structure of the HNF4 alpha ligand binding domain in...
ACCEPT
Summary: Nuclear receptor activity.
Reason: HNF4A is an orphan member of the nuclear receptor superfamily (NR2A1) whose ligand-binding domain constitutively binds fatty acids; the nuclear receptor term is the most precise MF.
Supporting Evidence:
PMID:12193589
fatty acids are endogenous ligands for HNF4 alpha
PMID:12220494
Hepatocyte nuclear factor 4 is a transcription factor that constitutively binds
GO:0005102 signaling receptor binding
IDA
PMID:12220494
Hepatocyte nuclear factor 4 is a transcription factor that c...
MODIFY
Summary: Signaling receptor binding (IDA, HNF4 LBD study).
Reason: The cited experiment shows the HNF4 ligand-binding domain interacting with nuclear receptor coactivators, which is transcription coactivator binding, not binding to a signalling receptor.
Supporting Evidence:
PMID:12220494
The purified HNF4 LBDs interacted with nuclear receptor
GO:0005504 fatty acid binding
IDA
PMID:12220494
Hepatocyte nuclear factor 4 is a transcription factor that c...
KEEP AS NON CORE
Summary: Fatty acid binding (IDA).
Reason: The HNF4 LBD carries tightly bound C14-C18 fatty acids that do not readily exchange; a structural ligand-binding property supporting its constitutive nuclear receptor activity.
Supporting Evidence:
PMID:12220494
Hepatocyte nuclear factor 4 is a transcription factor that constitutively binds
file:human/HNF4A/HNF4A-uniprot.txt
MISCELLANEOUS: Binds fatty acids.
GO:0005515 protein binding
IPI
PMID:12855700
Sterol regulatory element-binding protein-2 interacts with h...
REMOVE
Summary: Protein binding (IPI) with co-regulators and other partners (e.g. PROX1, NR0B2, CLOCK/BMAL1, interactome screens).
Reason: Uninformative term. Functionally relevant partners act as transcription co-regulators, which are better captured by coregulator-binding or regulation-of-transcription terms; removing protein binding does not imply the interactions are false.
Supporting Evidence:
file:human/HNF4A/HNF4A-uniprot.txt
Transcriptional regulator which controls the expression of
GO:0005515 protein binding
IPI
PMID:16488887
A Prospero-related homeodomain protein is a novel co-regulat...
REMOVE
Summary: Protein binding (IPI) with co-regulators and other partners (e.g. PROX1, NR0B2, CLOCK/BMAL1, interactome screens).
Reason: Uninformative term. Functionally relevant partners act as transcription co-regulators, which are better captured by coregulator-binding or regulation-of-transcription terms; removing protein binding does not imply the interactions are false.
Supporting Evidence:
file:human/HNF4A/HNF4A-uniprot.txt
Transcriptional regulator which controls the expression of
GO:0005515 protein binding
IPI
PMID:17932483
Cited2, a coactivator of HNF4alpha, is essential for liver d...
REMOVE
Summary: Protein binding (IPI) with co-regulators and other partners (e.g. PROX1, NR0B2, CLOCK/BMAL1, interactome screens).
Reason: Uninformative term. Functionally relevant partners act as transcription co-regulators, which are better captured by coregulator-binding or regulation-of-transcription terms; removing protein binding does not imply the interactions are false.
Supporting Evidence:
file:human/HNF4A/HNF4A-uniprot.txt
Transcriptional regulator which controls the expression of
GO:0005515 protein binding
IPI
PMID:17978169
Dexamethasone-mediated up-regulation of human CYP2A6 involve...
REMOVE
Summary: Protein binding (IPI) with co-regulators and other partners (e.g. PROX1, NR0B2, CLOCK/BMAL1, interactome screens).
Reason: Uninformative term. Functionally relevant partners act as transcription co-regulators, which are better captured by coregulator-binding or regulation-of-transcription terms; removing protein binding does not imply the interactions are false.
Supporting Evidence:
file:human/HNF4A/HNF4A-uniprot.txt
Transcriptional regulator which controls the expression of
GO:0005515 protein binding
IPI
PMID:19549071
Functional dissection of the alpha-synuclein promoter: trans...
REMOVE
Summary: Protein binding (IPI) with co-regulators and other partners (e.g. PROX1, NR0B2, CLOCK/BMAL1, interactome screens).
Reason: Uninformative term. Functionally relevant partners act as transcription co-regulators, which are better captured by coregulator-binding or regulation-of-transcription terms; removing protein binding does not imply the interactions are false.
Supporting Evidence:
file:human/HNF4A/HNF4A-uniprot.txt
Transcriptional regulator which controls the expression of
GO:0005515 protein binding
IPI
PMID:19846556
Multiple binding modes between HNF4alpha and the LXXLL motif...
REMOVE
Summary: Protein binding (IPI) with co-regulators and other partners (e.g. PROX1, NR0B2, CLOCK/BMAL1, interactome screens).
Reason: Uninformative term. Functionally relevant partners act as transcription co-regulators, which are better captured by coregulator-binding or regulation-of-transcription terms; removing protein binding does not imply the interactions are false.
Supporting Evidence:
file:human/HNF4A/HNF4A-uniprot.txt
Transcriptional regulator which controls the expression of
GO:0005515 protein binding
IPI
PMID:21532585
PKA-dependent regulation of the histone lysine demethylase c...
REMOVE
Summary: Protein binding (IPI) with co-regulators and other partners (e.g. PROX1, NR0B2, CLOCK/BMAL1, interactome screens).
Reason: Uninformative term. Functionally relevant partners act as transcription co-regulators, which are better captured by coregulator-binding or regulation-of-transcription terms; removing protein binding does not imply the interactions are false.
Supporting Evidence:
file:human/HNF4A/HNF4A-uniprot.txt
Transcriptional regulator which controls the expression of
GO:0005515 protein binding
IPI
PMID:23714182
Transcription of the human microsomal epoxide hydrolase gene...
REMOVE
Summary: Protein binding (IPI) with co-regulators and other partners (e.g. PROX1, NR0B2, CLOCK/BMAL1, interactome screens).
Reason: Uninformative term. Functionally relevant partners act as transcription co-regulators, which are better captured by coregulator-binding or regulation-of-transcription terms; removing protein binding does not imply the interactions are false.
Supporting Evidence:
file:human/HNF4A/HNF4A-uniprot.txt
Transcriptional regulator which controls the expression of
GO:0005515 protein binding
IPI
PMID:23714368
FOXO6 promotes gastric cancer cell tumorigenicity via upregu...
REMOVE
Summary: Protein binding (IPI) with co-regulators and other partners (e.g. PROX1, NR0B2, CLOCK/BMAL1, interactome screens).
Reason: Uninformative term. Functionally relevant partners act as transcription co-regulators, which are better captured by coregulator-binding or regulation-of-transcription terms; removing protein binding does not imply the interactions are false.
Supporting Evidence:
file:human/HNF4A/HNF4A-uniprot.txt
Transcriptional regulator which controls the expression of
GO:0005515 protein binding
IPI
PMID:28128295
RNA helicase DDX3 maintains lipid homeostasis through upregu...
REMOVE
Summary: Protein binding (IPI) with co-regulators and other partners (e.g. PROX1, NR0B2, CLOCK/BMAL1, interactome screens).
Reason: Uninformative term. Functionally relevant partners act as transcription co-regulators, which are better captured by coregulator-binding or regulation-of-transcription terms; removing protein binding does not imply the interactions are false.
Supporting Evidence:
file:human/HNF4A/HNF4A-uniprot.txt
Transcriptional regulator which controls the expression of
GO:0005515 protein binding
IPI
PMID:30530698
Nuclear receptor HNF4A transrepresses CLOCK:BMAL1 and modula...
REMOVE
Summary: Protein binding (IPI) with co-regulators and other partners (e.g. PROX1, NR0B2, CLOCK/BMAL1, interactome screens).
Reason: Uninformative term. Functionally relevant partners act as transcription co-regulators, which are better captured by coregulator-binding or regulation-of-transcription terms; removing protein binding does not imply the interactions are false.
Supporting Evidence:
file:human/HNF4A/HNF4A-uniprot.txt
Transcriptional regulator which controls the expression of
GO:0005515 protein binding
IPI
PMID:30530698
Nuclear receptor HNF4A transrepresses CLOCK:BMAL1 and modula...
REMOVE
Summary: Protein binding (IPI) with co-regulators and other partners (e.g. PROX1, NR0B2, CLOCK/BMAL1, interactome screens).
Reason: Uninformative term. Functionally relevant partners act as transcription co-regulators, which are better captured by coregulator-binding or regulation-of-transcription terms; removing protein binding does not imply the interactions are false.
Supporting Evidence:
file:human/HNF4A/HNF4A-uniprot.txt
Transcriptional regulator which controls the expression of
GO:0005515 protein binding
IPI
PMID:30530698
Nuclear receptor HNF4A transrepresses CLOCK:BMAL1 and modula...
REMOVE
Summary: Protein binding (IPI) with co-regulators and other partners (e.g. PROX1, NR0B2, CLOCK/BMAL1, interactome screens).
Reason: Uninformative term. Functionally relevant partners act as transcription co-regulators, which are better captured by coregulator-binding or regulation-of-transcription terms; removing protein binding does not imply the interactions are false.
Supporting Evidence:
file:human/HNF4A/HNF4A-uniprot.txt
Transcriptional regulator which controls the expression of
GO:0005515 protein binding
IPI
PMID:30530698
Nuclear receptor HNF4A transrepresses CLOCK:BMAL1 and modula...
REMOVE
Summary: Protein binding (IPI) with co-regulators and other partners (e.g. PROX1, NR0B2, CLOCK/BMAL1, interactome screens).
Reason: Uninformative term. Functionally relevant partners act as transcription co-regulators, which are better captured by coregulator-binding or regulation-of-transcription terms; removing protein binding does not imply the interactions are false.
Supporting Evidence:
file:human/HNF4A/HNF4A-uniprot.txt
Transcriptional regulator which controls the expression of
GO:0005515 protein binding
IPI
PMID:30530698
Nuclear receptor HNF4A transrepresses CLOCK:BMAL1 and modula...
REMOVE
Summary: Protein binding (IPI) with co-regulators and other partners (e.g. PROX1, NR0B2, CLOCK/BMAL1, interactome screens).
Reason: Uninformative term. Functionally relevant partners act as transcription co-regulators, which are better captured by coregulator-binding or regulation-of-transcription terms; removing protein binding does not imply the interactions are false.
Supporting Evidence:
file:human/HNF4A/HNF4A-uniprot.txt
Transcriptional regulator which controls the expression of
GO:0005515 protein binding
IPI
PMID:30530698
Nuclear receptor HNF4A transrepresses CLOCK:BMAL1 and modula...
REMOVE
Summary: Protein binding (IPI) with co-regulators and other partners (e.g. PROX1, NR0B2, CLOCK/BMAL1, interactome screens).
Reason: Uninformative term. Functionally relevant partners act as transcription co-regulators, which are better captured by coregulator-binding or regulation-of-transcription terms; removing protein binding does not imply the interactions are false.
Supporting Evidence:
file:human/HNF4A/HNF4A-uniprot.txt
Transcriptional regulator which controls the expression of
GO:0005515 protein binding
IPI
PMID:33961781
Dual proteome-scale networks reveal cell-specific remodeling...
REMOVE
Summary: Protein binding (IPI) with co-regulators and other partners (e.g. PROX1, NR0B2, CLOCK/BMAL1, interactome screens).
Reason: Uninformative term. Functionally relevant partners act as transcription co-regulators, which are better captured by coregulator-binding or regulation-of-transcription terms; removing protein binding does not imply the interactions are false.
Supporting Evidence:
file:human/HNF4A/HNF4A-uniprot.txt
Transcriptional regulator which controls the expression of
GO:0005515 protein binding
IPI
PMID:35140242
Human transcription factor protein interaction networks.
REMOVE
Summary: Protein binding (IPI) with co-regulators and other partners (e.g. PROX1, NR0B2, CLOCK/BMAL1, interactome screens).
Reason: Uninformative term. Functionally relevant partners act as transcription co-regulators, which are better captured by coregulator-binding or regulation-of-transcription terms; removing protein binding does not imply the interactions are false.
Supporting Evidence:
file:human/HNF4A/HNF4A-uniprot.txt
Transcriptional regulator which controls the expression of
GO:0005634 nucleus
IBA
GO_REF:0000033
ACCEPT
Summary: Nucleus.
Reason: HNF4A acts in the nucleus as a transcription factor.
Supporting Evidence:
file:human/HNF4A/HNF4A-uniprot.txt
SUBCELLULAR LOCATION: Nucleus.
PMID:14563941
expressed HNF-1, HNF-4alpha, HNF-3beta, and C/EBPalpha in the nucleus
GO:0005634 nucleus
IDA
PMID:14563941
A crucial role of hepatocyte nuclear factor-4 expression in ...
ACCEPT
Summary: Nucleus.
Reason: HNF4A acts in the nucleus as a transcription factor.
Supporting Evidence:
file:human/HNF4A/HNF4A-uniprot.txt
SUBCELLULAR LOCATION: Nucleus.
PMID:14563941
expressed HNF-1, HNF-4alpha, HNF-3beta, and C/EBPalpha in the nucleus
GO:0005634 nucleus
IDA
PMID:15574752
Role of a BCL9-related beta-catenin-binding protein, B9L, in...
ACCEPT
Summary: Nucleus.
Reason: HNF4A acts in the nucleus as a transcription factor.
Supporting Evidence:
file:human/HNF4A/HNF4A-uniprot.txt
SUBCELLULAR LOCATION: Nucleus.
PMID:14563941
expressed HNF-1, HNF-4alpha, HNF-3beta, and C/EBPalpha in the nucleus
GO:0005634 nucleus
IDA
PMID:7615825
Intestinal apolipoprotein AI gene transcription is regulated...
ACCEPT
Summary: Nucleus.
Reason: HNF4A acts in the nucleus as a transcription factor.
Supporting Evidence:
file:human/HNF4A/HNF4A-uniprot.txt
SUBCELLULAR LOCATION: Nucleus.
PMID:14563941
expressed HNF-1, HNF-4alpha, HNF-3beta, and C/EBPalpha in the nucleus
GO:0005634 nucleus
IEA
GO_REF:0000120
ACCEPT
Summary: Nucleus.
Reason: HNF4A acts in the nucleus as a transcription factor.
Supporting Evidence:
file:human/HNF4A/HNF4A-uniprot.txt
SUBCELLULAR LOCATION: Nucleus.
PMID:14563941
expressed HNF-1, HNF-4alpha, HNF-3beta, and C/EBPalpha in the nucleus
GO:0005654 nucleoplasm
IDA
GO_REF:0000052
ACCEPT
Summary: Nucleoplasm.
Reason: Correct nuclear sub-location for a TF.
Supporting Evidence:
file:human/HNF4A/HNF4A-uniprot.txt
SUBCELLULAR LOCATION: Nucleus.
GO:0005654 nucleoplasm
TAS
Reactome:R-HSA-376419
ACCEPT
Summary: Nucleoplasm.
Reason: Correct nuclear sub-location for a TF.
Supporting Evidence:
file:human/HNF4A/HNF4A-uniprot.txt
SUBCELLULAR LOCATION: Nucleus.
GO:0005654 nucleoplasm
TAS
Reactome:R-HSA-382096
ACCEPT
Summary: Nucleoplasm.
Reason: Correct nuclear sub-location for a TF.
Supporting Evidence:
file:human/HNF4A/HNF4A-uniprot.txt
SUBCELLULAR LOCATION: Nucleus.
GO:0005737 cytoplasm
IDA
PMID:14563941
A crucial role of hepatocyte nuclear factor-4 expression in ...
KEEP AS NON CORE
Summary: Cytoplasm (IDA, human liver immunostaining).
Reason: Cytoplasmic HNF4A staining was seen in residual hepatocytes of necrotic liver; a regulated/pathological pool rather than its site of action.
Supporting Evidence:
PMID:14563941
whereas residual hepatocytes in massive
GO:0006355 regulation of DNA-templated transcription
IEA
GO_REF:0000002
ACCEPT
Summary: Regulation of DNA-templated transcription.
Reason: Correct general process.
Supporting Evidence:
file:human/HNF4A/HNF4A-uniprot.txt
Transcriptional regulator which controls the expression of
GO:0006357 regulation of transcription by RNA polymerase II
IDA
PMID:10330009
Regulation of alpha1-antitrypsin gene expression in human in...
ACCEPT
Summary: Regulation of transcription by RNA polymerase II.
Reason: Core process.
Supporting Evidence:
PMID:10330009
HNF-1alpha and HNF-4 had a synergistic effect on alpha1-AT gene expression
file:human/HNF4A/HNF4A-uniprot.txt
progenitor cells, facilitating the recruitment of RNA pol II to the
GO:0006357 regulation of transcription by RNA polymerase II
IDA
PMID:12911579
Functional characterization of transcription factor binding ...
ACCEPT
Summary: Regulation of transcription by RNA polymerase II.
Reason: Core process.
Supporting Evidence:
PMID:10330009
HNF-1alpha and HNF-4 had a synergistic effect on alpha1-AT gene expression
file:human/HNF4A/HNF4A-uniprot.txt
progenitor cells, facilitating the recruitment of RNA pol II to the
GO:0006357 regulation of transcription by RNA polymerase II
IMP
PMID:18163890
HNF4 alpha orchestrates a set of 14 genes to down-regulate c...
ACCEPT
Summary: Regulation of transcription by RNA polymerase II.
Reason: Core process.
Supporting Evidence:
PMID:10330009
HNF-1alpha and HNF-4 had a synergistic effect on alpha1-AT gene expression
file:human/HNF4A/HNF4A-uniprot.txt
progenitor cells, facilitating the recruitment of RNA pol II to the
GO:0006805 xenobiotic metabolic process
IMP
PMID:17827783
Role of human hepatocyte nuclear factor 4alpha in the expres...
KEEP AS NON CORE
Summary: Xenobiotic metabolic process (acts upstream, siRNA in hepatocytes).
Reason: HNF4A drives expression of drug-metabolising CYPs, UGTs and transporters; it acts upstream as a TF, not as a metabolic enzyme.
Supporting Evidence:
PMID:17827783
plays a dominant role in the expression of drug-metabolizing enzymes and
GO:0007596 blood coagulation
IDA
PMID:12911579
Functional characterization of transcription factor binding ...
KEEP AS NON CORE
Summary: Blood coagulation (acts upstream, prothrombin enhancer).
Reason: HNF4A binds the prothrombin enhancer; regulation of a coagulation-factor gene is an indirect, upstream contribution.
Supporting Evidence:
PMID:12911579
We identified six different TFs binding to three
GO:0008270 zinc ion binding
IEA
GO_REF:0000002
KEEP AS NON CORE
Summary: Zinc ion binding (InterPro).
Reason: Structural zinc in the nuclear-receptor DNA-binding domain zinc fingers; supports DNA binding but is not a function in itself.
Supporting Evidence:
PMID:7615825
which binds to the NHRRE,
GO:0008285 negative regulation of cell population proliferation
IMP
PMID:18163890
HNF4 alpha orchestrates a set of 14 genes to down-regulate c...
KEEP AS NON CORE
Summary: Negative regulation of cell population proliferation (IMP, HEK293).
Reason: Induced HNF4A represses proliferation of HEK293 cells via a set of target genes; a downstream consequence of its TF activity.
Supporting Evidence:
PMID:18163890
HNF4 alpha orchestrates a set of 14 genes to down-regulate cell proliferation
GO:0009749 response to glucose
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: Response to glucose (electronic/ISS).
Reason: Rodent-derived; HNF4A participates in glucose-responsive gene regulation in liver and beta cells. Non-core.
Supporting Evidence:
file:human/HNF4A/HNF4A-uniprot.txt
years of age), a primary defect in insulin secretion and frequent
GO:0009749 response to glucose
ISS
GO_REF:0000024
KEEP AS NON CORE
Summary: Response to glucose (electronic/ISS).
Reason: Rodent-derived; HNF4A participates in glucose-responsive gene regulation in liver and beta cells. Non-core.
Supporting Evidence:
file:human/HNF4A/HNF4A-uniprot.txt
years of age), a primary defect in insulin secretion and frequent
GO:0019216 regulation of lipid metabolic process
IDA
PMID:10551874
Mitogen-activated protein kinase regulates transcription of ...
KEEP AS NON CORE
Summary: Regulation of lipid metabolic process (IDA, apoCIII promoter).
Reason: HNF4A regulates apolipoprotein genes and thereby lipid metabolism; a downstream physiological role of its TF activity.
Supporting Evidence:
PMID:10551874
The major protein binding to this site was identified
GO:0030154 cell differentiation
IBA
GO_REF:0000033
KEEP AS NON CORE
Summary: Cell differentiation (IBA).
Reason: HNF4A is required for hepatocyte specification from endoderm and maintenance of differentiated epithelial phenotypes; non-core developmental role.
Supporting Evidence:
PMID:30597922
HNF4A Regulates the Formation of Hepatic Progenitor Cells from Human
GO:0030308 negative regulation of cell growth
IMP
PMID:18163890
HNF4 alpha orchestrates a set of 14 genes to down-regulate c...
KEEP AS NON CORE
Summary: Negative regulation of cell growth (IMP, HEK293).
Reason: As above; indirect via target genes.
Supporting Evidence:
PMID:18163890
HNF4 alpha orchestrates a set of 14 genes to down-regulate cell proliferation
GO:0030522 intracellular receptor signaling pathway
IEA
GO_REF:0000108
KEEP AS NON CORE
Summary: Intracellular receptor signaling pathway (inferred from nuclear receptor activity).
Reason: Generic inference from nuclear receptor activity; HNF4A is constitutively active and not classically ligand-triggered, so not core.
Supporting Evidence:
PMID:12220494
Hepatocyte nuclear factor 4 is a transcription factor that constitutively binds
GO:0042593 glucose homeostasis
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: Glucose homeostasis.
Reason: HNF4A loss causes MODY1 and, in neonates, hyperinsulinaemic hypoglycaemia; it acts upstream via transcription of beta-cell and hepatic metabolic genes.
Supporting Evidence:
file:human/HNF4A/HNF4A-uniprot.txt
years of age), a primary defect in insulin secretion and frequent
PMID:17407387
Mice with pancreatic beta-cell deletion of Hnf4a had hyperinsulinaemia in utero and hyperinsulinaemic hypoglycaemia at birth
GO:0042593 glucose homeostasis
ISS
GO_REF:0000024
KEEP AS NON CORE
Summary: Glucose homeostasis.
Reason: HNF4A loss causes MODY1 and, in neonates, hyperinsulinaemic hypoglycaemia; it acts upstream via transcription of beta-cell and hepatic metabolic genes.
Supporting Evidence:
file:human/HNF4A/HNF4A-uniprot.txt
years of age), a primary defect in insulin secretion and frequent
PMID:17407387
Mice with pancreatic beta-cell deletion of Hnf4a had hyperinsulinaemia in utero and hyperinsulinaemic hypoglycaemia at birth
GO:0042632 cholesterol homeostasis
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: Cholesterol homeostasis.
Reason: Downstream physiological consequence of HNF4A regulation of hepatic lipid/bile-acid genes (e.g. CYP7A1).
Supporting Evidence:
PMID:16488887
an important
GO:0042632 cholesterol homeostasis
ISS
GO_REF:0000024
KEEP AS NON CORE
Summary: Cholesterol homeostasis.
Reason: Downstream physiological consequence of HNF4A regulation of hepatic lipid/bile-acid genes (e.g. CYP7A1).
Supporting Evidence:
PMID:16488887
an important
GO:0042752 regulation of circadian rhythm
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: Regulation of circadian rhythm.
Reason: HNF4A transrepresses CLOCK:BMAL1 and maintains cell-autonomous oscillations in liver and colon cells.
Supporting Evidence:
PMID:30530698
We define a central role for HNF4A in maintaining cell-autonomous circadian
GO:0042752 regulation of circadian rhythm
IMP
PMID:30530698
Nuclear receptor HNF4A transrepresses CLOCK:BMAL1 and modula...
KEEP AS NON CORE
Summary: Regulation of circadian rhythm.
Reason: HNF4A transrepresses CLOCK:BMAL1 and maintains cell-autonomous oscillations in liver and colon cells.
Supporting Evidence:
PMID:30530698
We define a central role for HNF4A in maintaining cell-autonomous circadian
GO:0042803 protein homodimerization activity
IDA
PMID:12220494
Hepatocyte nuclear factor 4 is a transcription factor that c...
KEEP AS NON CORE
Summary: Protein homodimerization activity (IDA).
Reason: HNF4A binds DNA as a homodimer; a structural prerequisite of DNA binding rather than its function.
Supporting Evidence:
file:human/HNF4A/HNF4A-uniprot.txt
Homodimerization is required for HNF4-alpha to bind to its
GO:0043565 sequence-specific DNA binding
IEA
GO_REF:0000120
ACCEPT
Summary: Sequence-specific DNA binding.
Reason: Correct.
Supporting Evidence:
PMID:7615825
which binds to the NHRRE,
GO:0045892 negative regulation of DNA-templated transcription
IDA
PMID:30530698
Nuclear receptor HNF4A transrepresses CLOCK:BMAL1 and modula...
KEEP AS NON CORE
Summary: Negative regulation of DNA-templated transcription (IDA, CLOCK:BMAL1 transrepression).
Reason: HNF4A transrepresses CLOCK:BMAL1 activity; real but a secondary, context-specific function.
Supporting Evidence:
PMID:30530698
Here we show that the nuclear receptor HNF4A strongly
file:human/HNF4A/HNF4A-uniprot.txt
Represses the CLOCK-BMAL1
GO:0045893 positive regulation of DNA-templated transcription
IDA
PMID:16488887
A Prospero-related homeodomain protein is a novel co-regulat...
ACCEPT
Summary: Positive regulation of DNA-templated transcription.
Reason: Core process; HNF4A activates target genes.
Supporting Evidence:
PMID:7615825
dramatically stimulates apoAI gene expression in Caco-2 cells but not in HepG2
GO:0045893 positive regulation of DNA-templated transcription
IEA
GO_REF:0000117
ACCEPT
Summary: Positive regulation of DNA-templated transcription.
Reason: Core process; HNF4A activates target genes.
Supporting Evidence:
PMID:7615825
dramatically stimulates apoAI gene expression in Caco-2 cells but not in HepG2
GO:0045944 positive regulation of transcription by RNA polymerase II
IBA
GO_REF:0000033
ACCEPT
Summary: Positive regulation of transcription by RNA polymerase II.
Reason: Core process; HNF4A recruits RNA polymerase II to target promoters.
Supporting Evidence:
file:human/HNF4A/HNF4A-uniprot.txt
progenitor cells, facilitating the recruitment of RNA pol II to the
PMID:7615825
dramatically stimulates apoAI gene expression in Caco-2 cells but not in HepG2
GO:0045944 positive regulation of transcription by RNA polymerase II
IDA
PMID:7615825
Intestinal apolipoprotein AI gene transcription is regulated...
ACCEPT
Summary: Positive regulation of transcription by RNA polymerase II.
Reason: Core process; HNF4A recruits RNA polymerase II to target promoters.
Supporting Evidence:
file:human/HNF4A/HNF4A-uniprot.txt
progenitor cells, facilitating the recruitment of RNA pol II to the
PMID:7615825
dramatically stimulates apoAI gene expression in Caco-2 cells but not in HepG2
GO:0045944 positive regulation of transcription by RNA polymerase II
IMP
PMID:17827783
Role of human hepatocyte nuclear factor 4alpha in the expres...
ACCEPT
Summary: Positive regulation of transcription by RNA polymerase II.
Reason: Core process; HNF4A recruits RNA polymerase II to target promoters.
Supporting Evidence:
file:human/HNF4A/HNF4A-uniprot.txt
progenitor cells, facilitating the recruitment of RNA pol II to the
PMID:7615825
dramatically stimulates apoAI gene expression in Caco-2 cells but not in HepG2
GO:0045944 positive regulation of transcription by RNA polymerase II
IMP
PMID:30597922
HNF4A Regulates the Formation of Hepatic Progenitor Cells fr...
ACCEPT
Summary: Positive regulation of transcription by RNA polymerase II.
Reason: Core process; HNF4A recruits RNA polymerase II to target promoters.
Supporting Evidence:
file:human/HNF4A/HNF4A-uniprot.txt
progenitor cells, facilitating the recruitment of RNA pol II to the
PMID:7615825
dramatically stimulates apoAI gene expression in Caco-2 cells but not in HepG2
GO:0050796 regulation of insulin secretion
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: Regulation of insulin secretion.
Reason: Beta-cell Hnf4a deletion causes fetal hyperinsulinaemia and neonatal hyperinsulinaemic hypoglycaemia, and human heterozygous variants cause neonatal hyperinsulinism followed by MODY1. HNF4A affects secretion indirectly as a transcriptional regulator of the beta-cell program.
Supporting Evidence:
PMID:17407387
Mice with pancreatic beta-cell deletion of Hnf4a had hyperinsulinaemia in utero and hyperinsulinaemic hypoglycaemia at birth
file:human/HNF4A/HNF4A-uniprot.txt
characterized by Fanconi syndrome associated with a beta cell phenotype
GO:0050796 regulation of insulin secretion
ISS
GO_REF:0000024
KEEP AS NON CORE
Summary: Regulation of insulin secretion.
Reason: Beta-cell Hnf4a deletion causes fetal hyperinsulinaemia and neonatal hyperinsulinaemic hypoglycaemia, and human heterozygous variants cause neonatal hyperinsulinism followed by MODY1. HNF4A affects secretion indirectly as a transcriptional regulator of the beta-cell program.
Supporting Evidence:
PMID:17407387
Mice with pancreatic beta-cell deletion of Hnf4a had hyperinsulinaemia in utero and hyperinsulinaemic hypoglycaemia at birth
file:human/HNF4A/HNF4A-uniprot.txt
characterized by Fanconi syndrome associated with a beta cell phenotype
GO:0055088 lipid homeostasis
IMP
PMID:17827783
Role of human hepatocyte nuclear factor 4alpha in the expres...
KEEP AS NON CORE
Summary: Lipid homeostasis (acts upstream, siRNA).
Reason: Indirect via target-gene regulation.
Supporting Evidence:
PMID:17827783
plays a dominant role in the expression of drug-metabolizing enzymes and
GO:0055091 phospholipid homeostasis
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: Phospholipid homeostasis.
Reason: Downstream of hepatic lipid gene regulation; non-core.
Supporting Evidence:
PMID:10551874
The major protein binding to this site was identified
GO:0055091 phospholipid homeostasis
ISS
GO_REF:0000024
KEEP AS NON CORE
Summary: Phospholipid homeostasis.
Reason: Downstream of hepatic lipid gene regulation; non-core.
Supporting Evidence:
PMID:10551874
The major protein binding to this site was identified
GO:0061629 RNA polymerase II-specific DNA-binding transcription factor binding
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: RNA polymerase II-specific DNA-binding transcription factor binding.
Reason: HNF4A cooperates with other liver-enriched TFs (e.g. HNF1A synergy on target promoters); real but secondary.
Supporting Evidence:
PMID:10330009
HNF-1alpha and HNF-4 had a synergistic effect on alpha1-AT gene expression
GO:0061629 RNA polymerase II-specific DNA-binding transcription factor binding
ISS
GO_REF:0000024
KEEP AS NON CORE
Summary: RNA polymerase II-specific DNA-binding transcription factor binding.
Reason: HNF4A cooperates with other liver-enriched TFs (e.g. HNF1A synergy on target promoters); real but secondary.
Supporting Evidence:
PMID:10330009
HNF-1alpha and HNF-4 had a synergistic effect on alpha1-AT gene expression
GO:0070328 triglyceride homeostasis
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: Triglyceride homeostasis.
Reason: HNF4A regulates apoCIII and other triglyceride-relevant genes; indirect.
Supporting Evidence:
PMID:10551874
The major protein binding to this site was identified
GO:0070328 triglyceride homeostasis
ISS
GO_REF:0000024
KEEP AS NON CORE
Summary: Triglyceride homeostasis.
Reason: HNF4A regulates apoCIII and other triglyceride-relevant genes; indirect.
Supporting Evidence:
PMID:10551874
The major protein binding to this site was identified
GO:1903268 positive regulation of ornithine catabolic process
IMP
PMID:17827783
Role of human hepatocyte nuclear factor 4alpha in the expres...
MARK AS OVER ANNOTATED
Summary: Positive regulation of ornithine catabolic process (IMP, hepatocyte siRNA).
Reason: Derived from target-gene expression changes after HNF4A knockdown; HNF4A regulates hundreds of hepatic metabolic genes, and annotating each downstream metabolic process over-annotates a general transcription factor.
Supporting Evidence:
PMID:17827783
plays a dominant role in the expression of drug-metabolizing enzymes and
GO:1990837 sequence-specific double-stranded DNA binding
IDA
PMID:28473536
Impact of cytosine methylation on DNA binding specificities ...
ACCEPT
Summary: Sequence-specific double-stranded DNA binding (methyl-SELEX).
Reason: HNF4A motif specificity was profiled by SELEX; consistent with its core DNA-binding activity.
Supporting Evidence:
PMID:28473536
Impact of cytosine methylation on DNA binding specificities of human

Core Functions

Sequence-specific DNA-binding nuclear receptor transcription factor that binds DR1-type response elements as a homodimer and activates RNA polymerase II transcription of hepatocyte, enterocyte and beta-cell target genes (apolipoproteins, metabolic enzymes, beta-cell secretory genes), with a fatty acid constitutively bound in its ligand-binding domain.

Supporting Evidence:
  • PMID:12193589
    fatty acids are endogenous ligands for HNF4 alpha
  • PMID:7615825
    dramatically stimulates apoAI gene expression in Caco-2 cells but not in HepG2
  • file:human/HNF4A/HNF4A-uniprot.txt
    progenitor cells, facilitating the recruitment of RNA pol II to the

In pancreatic beta cells, HNF4A DNA-binding transcription activator activity maintains the insulin-secretory gene program; its loss causes fetal/neonatal hyperinsulinism followed by MODY1, so the effect on insulin secretion is mediated through transcription of target genes.

Supporting Evidence:
  • PMID:17407387
    Mice with pancreatic beta-cell deletion of Hnf4a had hyperinsulinaemia in utero and hyperinsulinaemic hypoglycaemia at birth
  • file:human/HNF4A/HNF4A-uniprot.txt
    characterized by Fanconi syndrome associated with a beta cell phenotype

References

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Suggested Questions for Experts

Q: Which beta-cell HNF4A target genes explain the switch from fetal/neonatal hyperinsulinism to later insulin-secretory failure in HNF4A haploinsufficiency?

Suggested Experiments

Experiment: Profile HNF4A occupancy (CUT&RUN) and transcriptome in human stem-cell-derived beta cells heterozygous for HNF4A loss at fetal-like and matured stages, together with glucose-stimulated insulin secretion, to identify the targets driving early hypersecretion versus later failure.

Deep Research

Falcon

(HNF4A-deep-research-falcon.md)

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πŸ“š Additional Documentation

Notes

(HNF4A-notes.md)

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