This model describes a multidomain protein of about 1070 residues, restricted to the order Myxococcales in the Deltaproteobacteria. Members contain a PDZ domain (pfam00595), an S41 family peptidase domain (pfam03572), and an SH3 domain (pfam06347). A core region of this family, including PDZ and S41 regions, is described by TIGR00225, C-terminal processing peptidase, which recognizes the Prc protease. The species distribution of this family approximates that of largely Deltaproteobacterial C-terminal putative protein-sorting domain, TIGR03901, analogous to LPXTG and PEP-CTERM, but the co-occurrence may reflect shared restriction to the Myxococcales rather than a substrate/target relationship.
Jiyao W et al.(2023). "The conserved domain database in 2023.",