GO_REF:0000120

Combined automated GO annotation using multiple IEA methods

Automated annotations supply porin activity for GalP.

GO_REF:0000002

Gene Ontology annotation through association of InterPro records with GO terms

InterPro supplied generic membrane localization for GalP.

GO_REF:0000108

Automatic assignment of GO terms using logical inference, based on inter-ontology links

GO-CAM inference supplied the broad transmembrane transport process annotation.

file:PSEPK/galP/galP-uniprot.txt

UniProtKB reviewed entry for galP

UniProt identifies GalP as a porin-like outer membrane protein probably involved in gallate degradation.

PMID:21219457

Unravelling the gallic acid degradation pathway in bacteria: the gal cluster from Pseudomonas putida

The gal-cluster paper emphasizes the importance of gallate uptake in the pathway.

file:PSEPK/galP/galP-goa.tsv

QuickGO GOA annotations for galP

The fetched GOA table contains the annotations reviewed for galP.

file:PSEPK/galP/galP-deep-research-falcon.md

Falcon (Edison Scientific) deep research report on galP (Q88JX6) in Pseudomonas putida KT2440

In Pseudomonas putida KT2440, recent primary literature specifically places galP in the gallic acid (gallate) catabolic gene cluster, where it is annotated as an outer membrane porin involved in gallate/gallic-acid utilization.

"recent primary literature specifically places **galP** in the **gallic acid (gallate) catabolic gene cluster**, where it is annotated as an **outer membrane porin** involved in gallate/gallic-acid utilization"
GalP is described as an outer membrane porin in the gallate catabolic cluster facilitating entry of gallic acid into the periplasm, distinguishing it from sugar (galactose-utilization) uses of the symbol galP.

"GalP is an **outer membrane porin** in the KT2440 **gallic acid (gallate) catabolic cluster** and is depicted as facilitating **entry of gallic acid into the periplasm**"
The symbol galP here refers to the gallate-cluster porin, not a galactose/sugar transporter.

"this distinguishes it from unrelated uses of the symbol **galP** in engineered galactose-utilization systems"
In the galTAP/galTAPR operon, galT is an inner-membrane transporter and galP is the outer-membrane porin.

"Dias et al. describe the operon as **galTAP/galTAPR**, where **galT** is described as an **inner-membrane transporter** and **galP** as an **outer-membrane porin**"
The KT2440 pathway schematic explicitly localizes GalP to the outer membrane.

"The KT2440 pathway schematic explicitly places GalP in the **outer membrane**"
Transport may be partly redundant: strains lacking galT and galP can still release gallic acid, with possible overlap with protocatechuate-related systems, so GalP may improve efficiency but not be strictly essential.

"engineered strains lacking **galT and galP** can still release gallic acid, and they propose that transport might occur through **other transport mechanisms** with potential overlap with **protocatechuate-related systems**"