prolyl aminopeptidase activity

traitmech:000166 · CLASS · PROPOSED

A physiological enzyme-activity phenotype in which a cell produces active prolyl aminopeptidases that release N-terminal proline residues from peptides.

Trait evidence (3)

  • https://iubmb.qmul.ac.uk/enzyme/EC3/4/11/5.html
    <b>Reaction:</b> Release of N-terminal proline from a peptide

    The NC-IUBMB EC 3.4.11.5 entry accepts prolyl aminopeptidase, gives the N-terminal-proline release reaction, and records proline aminopeptidase, Pro-X aminopeptidase, and proline iminopeptidase as other names.

  • DOI:10.1111/j.1365-2958.1993.tb01249.x
    Proline iminopeptidase (Pip) is a hydrolase elaborated by virtually all strains of Neisseria gonorrhoeae that selectively removes N-terminal proline residues from peptides.

    Albertson and Koomey cloned the gonococcal pip gene and confirmed that the encoded enzyme can release biologically active proline from peptides.

  • DOI:10.1099/ijsem.0.006017
    enzymatic activities are present for: α-galactosidase, N-acetyl-β-glucosaminidase, arginine arylamidase, proline arylamidase, leucyl glycine arylamidase, phenylalanine arylamidase, leucine arylamidase, tyrosine arylamidase, alanine arylamidase, glycine arylamidase, histidine arylamidase, glutamyl glutamic acid arylamidase, serine arylamidase, valine arylamidase, cysteine arylamidase, esterase, esterase lipase, alpha-chymotrypsin

    Srinivasan et al. listed proline arylamidase among enzymatic activities present in the Amygdalobacter indicium species description, supporting the API proline arylamidase row as a directly assayed bacterial enzyme-activity phenotype.

Provenance

Identifier source
TraitMech local identifier
Definition source
https://iubmb.qmul.ac.uk/enzyme/EC3/4/11/5.html

Parent traits (1)

Synonyms (4)

  • proline aminopeptidase RELATED_SYNONYM · https://iubmb.qmul.ac.uk/enzyme/EC3/4/11/5.html
  • Pro-X aminopeptidase RELATED_SYNONYM · https://iubmb.qmul.ac.uk/enzyme/EC3/4/11/5.html
  • proline iminopeptidase RELATED_SYNONYM · https://iubmb.qmul.ac.uk/enzyme/EC3/4/11/5.html
  • proline arylamidase RELATED_SYNONYM · DOI:10.1099/ijsem.0.006017

kg-microbe context

No kg-microbe node embedding matched this record in the 2026-04-25 deepwalk.

Canonical examples (1)

Organisms cited as exemplars of this trait. Taxon ids are NCBITaxon and link out to the NCBI record.

Discussions and Knowledge Gaps (1)

Open questions attached to this trait. Seeded by just knowledge-gap-scan and curated; see the corpus-wide index.

Resolve an exact external ontology class for prolyl aminopeptidase activity before adding a TraitRecord xref.

CURATION TODO OPEN prolyl-aminopeptidase-activity-xref-gap · raised by codex · 2026-09-12

Not yet attached to a section of this record — a curator sets attaches_to (e.g. causal_graphs#some_edge) so the gap shows beside the mechanism it concerns.

GO:0004177 denotes broad aminopeptidase molecular function and EC 3.4.11.5 denotes a prolyl aminopeptidase molecular function; both are scope-shifted relative to the organism-level prolyl aminopeptidase production phenotype, so they remain causal-node grounding leads rather than equivalent TraitRecord xrefs.

Curation history

  1. · MINTED_TRAITMECH_ID · codex

    Minted prolyl aminopeptidase activity as a URL/DOI-backed TraitRecord after a repository-wide duplicate review covering ignored and hidden files; METPO has no exact prolyl aminopeptidase activity class yet.