GO_REF:0000002

Gene Ontology annotation through association of InterPro records with GO terms

file:PSEPK/PP_0076/PP_0076-uniprot.txt

UniProtKB entry Q88RQ3 for Pseudomonas putida KT2440 PP_0076

Q88RQ3 has a predicted cleavable N-terminal signal peptide.

"FT SIGNAL 1..20"
The protein contains a choline-transporter substrate-binding-family domain.

"InterPro; IPR017783; ABC_choline_sub-bd."

file:PSEPK/PP_0075/PP_0075-uniprot.txt

UniProtKB entry Q88RQ4 for the adjacent Pseudomonas putida KT2440 transport candidate

The adjacent membrane candidate belongs to the SLC26A/SulP family rather than an ABC-transporter permease family.

"InterPro; IPR001902; SLC26A/SulP_fam."

PMID:17116241

Uncoupling of choline-O-sulphate utilization from osmoprotection in Pseudomonas putida.

A KT2440 betC deletion retained intact choline-O-sulfate accumulation.

"This mutant still accumulated intact COS but failed to use this compound as carbon or nitrogen source."

PMID:21369825

Inducible expression of choline sulfatase and its regulator BetR in Pseudomonas sp. ATCC19151.

A syntenic Pseudomonas BetD homolog is predicted to be an ABC transporter substrate-binding protein.

"substrate-binding ABC transporter protein (betD)"

file:PSEPK/PP_0076/PP_0076-deep-research-openscientist.md

OpenScientist deep-research report for PSEPK PP_0076

The report confirms that direct target ligand-binding and transport assays are absent.

"No direct biochemical characterization of PP_0076 itself."
The report recognizes unresolved ligand specificity within the quaternary-ammonium class.

"Substrate ambiguity within the quaternary-ammonium class."