Annotations: 4FKC

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A		e4fkcA1	A: Globin-like	X: Nucleoside diphosphate kinases	H: Nucleoside diphosphate kinases	T: Aldo_ket_red	F:	ECOD (20:10:01)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
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	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	PF01321	Creatinase/Prolidase N-terminal domain (Creatinase_N)	Creatinase/Prolidase N-terminal domain	This family includes the N-terminal non-catalytic domains from creatinase and prolidase. The exact function of this domain is uncertain.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Xaa-Pro aminopeptidase	cation binding ion binding binding metal ion binding small molecule binding peptidase activity catalytic activity, acting on a protein aminopeptidase activity hydrolase activity exopeptidase activity catalytic activity	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR000587	Creatinase, N-terminal	Domain
A	IPR001131	Peptidase M24B, X-Pro dipeptidase/aminopeptidase P, conserved site	Conserved Site
A	IPR029149	Creatinase/Aminopeptidase P/Spt16, N-terminal	Homologous Superfamily
A	IPR050659	Peptidase M24B family	Family
A	IPR036005	Creatinase/aminopeptidase-like	Homologous Superfamily
A	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.