Annotations: 4QR8

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	Dockerin_1	e4qr8B1	A: a/b three-layered sandwiches	X: Ribonuclease H-like	H: Rossmann-related	T: S-adenosyl-L-methionine-dependent methyltransferases	F: Dockerin_1	ECOD (v294.1)
A	CBM_X2	e4qr8A1	A: a/b three-layered sandwiches	X: Ribonuclease H-like	H: Rossmann-related	T: S-adenosyl-L-methionine-dependent methyltransferases	F: CBM_X2	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	3.40.350.10	Alpha Beta	3-Layer(aba) Sandwich	Creatine Amidinohydrolase	Chain A, domain 1	CATH (4.3.0)
B	3.90.230.10	Alpha Beta	Alpha-Beta Complex	Creatine Amidinohydrolase	Creatinase/methionine aminopeptidase superfamily	CATH (4.3.0)
A	3.40.350.10	Alpha Beta	3-Layer(aba) Sandwich	Creatine Amidinohydrolase	Chain A, domain 1	CATH (4.3.0)
A	3.90.230.10	Alpha Beta	Alpha-Beta Complex	Creatine Amidinohydrolase	Creatinase/methionine aminopeptidase superfamily	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF00557	Metallopeptidase family M24 (Peptidase_M24)	Metallopeptidase family M24	This family contains metallopeptidases. It also contains non-peptidase homologues such as the N terminal domain of Spt16 which is a histone H3-H4 binding module [3].	Domain
A, B	PF21216	Xaa-Pro dipeptidase, N-terminal domain (PepQ_N)	Xaa-Pro dipeptidase, N-terminal domain	This domain is found in Xaa-Pro dipeptidase from Escherichia coli (PepQ), a metalloprotease that catalyse the cleavage of Xaa-Pro dipeptides. This protein is organised into N-terminal (this entry) and C-terminal (usually Pfam:PF00557) domains and ad ...	This domain is found in Xaa-Pro dipeptidase from Escherichia coli (PepQ), a metalloprotease that catalyse the cleavage of Xaa-Pro dipeptides. This protein is organised into N-terminal (this entry) and C-terminal (usually Pfam:PF00557) domains and adopts a dimeric configuration. This domain shows an alpha-beta structure with four helices, one pair flanking each side of the six-stranded mixed beta-sheet [1-5].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Xaa-Pro dipeptidase	identical protein binding protein binding binding protein homodimerization activity protein dimerization activity phosphoric ester hydrolase activity hydrolase activity, acting on ester bonds phosphoric triester hydrolase activity hydrolase activity catalytic activity peptidase activity catalytic activity, acting on a protein proline dipeptidase activity exopeptidase activity identical protein binding protein binding binding protein homodimerization activity protein dimerization activity phosphoric ester hydrolase activity hydrolase activity, acting on ester bonds phosphoric triester hydrolase activity hydrolase activity catalytic activity peptidase activity catalytic activity, acting on a protein proline dipeptidase activity exopeptidase activity dipeptidase activity cation binding manganese ion binding transition metal ion binding ion binding metal ion binding small molecule binding aminopeptidase activity metallodipeptidase activity metallopeptidase activity metalloexopeptidase activity	catabolic process metabolic process cellular process peptide metabolic process peptide catabolic process proteolysis primary metabolic process protein metabolic process macromolecule metabolic process	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR001131	Peptidase M24B, X-Pro dipeptidase/aminopeptidase P, conserved site	Conserved Site
A, B	IPR022846	Xaa-Pro dipeptidase	Family
A, B	IPR029149	Creatinase/Aminopeptidase P/Spt16, N-terminal	Homologous Superfamily
A, B	IPR052433	Xaa-Pro dipeptidase-like	Family
A, B	IPR048819	Xaa-Pro dipeptidase, N-terminal domain	Domain
A, B	IPR036005	Creatinase/aminopeptidase-like	Homologous Superfamily
A, B	IPR000994	Peptidase M24	Domain

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.