Domain

Carboxypeptidase-like, regulatory domain (IPR008969)

Short name: CarboxyPept-like_regulatory

Domain relationships

None.

Description

This domain identifies a number of eukaryotic carboxypeptidases, these include carboxypeptidase D, E (H), N, X, X2 and Z. These are metallopeptidases belong to MEROPS peptidase family M14 (clan MC), subfamily M14B.

Carboxypeptidase D (CPD) is a new B-type metallocarboxypeptidase that is membrane bound and has an acidic pH optimum. A hydrophobic region at the N terminus represents the signal peptide, and one near the C terminus that probably represents the transmembrane anchor. A regulatory domain within the protein has been identified as a beta-sandwich, comprising 7 strands in 2 sheets in a greek-key topology. Some family members have an additional 1-2 strands to the common fold [PMID: 11080148].

The bacterial and archaeal sequences having this signature are variously annotated, examples are:

  • Hypothetical/conserved/membrane/cell surface protein
  • N-acetylglucosamine deacetylase
  • Side tail fibre protein homologue from lambdoid prophage Rac
  • Hypothetical tonB-linked outer membrane receptor
  • OmpA-related protein
  • Putative outer membrane protein, probably involved in nutrient binding
  • TonB-dependent receptor

This entry also includes the teneurin family members, which may function as cellular signal transducers.

Contributing signatures

Signatures from InterPro member databases are used to construct an entry.
SUPERFAMILY