Annotations: 1CHM

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1chma1	Alpha and beta proteins (a/b)	Ribonuclease H-like motif	Creatinase/prolidase N-terminal domain	Creatinase/prolidase N-terminal domain	Creatinase	(Pseudomonas putida ) [TaxId: 303 ],	SCOPe (2.08)
A	d1chma2	Alpha and beta proteins (a+b)	Creatinase/aminopeptidase	Creatinase/aminopeptidase	Creatinase/aminopeptidase	Creatinase, catalytic (C-terminal) domain	(Pseudomonas putida ) [TaxId: 303 ],	SCOPe (2.08)
B	d1chmb1	Alpha and beta proteins (a/b)	Ribonuclease H-like motif	Creatinase/prolidase N-terminal domain	Creatinase/prolidase N-terminal domain	Creatinase	(Pseudomonas putida ) [TaxId: 303 ],	SCOPe (2.08)
B	d1chmb2	Alpha and beta proteins (a+b)	Creatinase/aminopeptidase	Creatinase/aminopeptidase	Creatinase/aminopeptidase	Creatinase, catalytic (C-terminal) domain	(Pseudomonas putida ) [TaxId: 303 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Creatinase/aminopeptidase-like	8023862	4000207	SCOP2 (2022-06-29)
A	SCOP2 Family	Creatinase/prolidase N-terminal domain	8032133	4000535	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Creatinase/aminopeptidase catalytic domain-like	8036242	3000126	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Creatinase/prolidase N-terminal domain-like	8044511	3000538	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	Creatinase/aminopeptidase catalytic domain-like	8036242	3000126	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Creatinase/prolidase N-terminal domain-like	8044511	3000538	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PF00557	e1chmA1	A: a+b duplicates or obligate multimers	X: Creatinase/aminopeptidase-like	H: Creatinase/aminopeptidase (From Topology)	T: Creatinase/aminopeptidase	F: PF00557	ECOD (1.6)
A	PF01321	e1chmA2	A: mixed a+b and a/b	X: Ribonuclease H-like	H: Creatinase/prolidase N-terminal domain (From Topology)	T: Creatinase/prolidase N-terminal domain	F: PF01321	ECOD (1.6)
B	PF00557	e1chmB1	A: a+b duplicates or obligate multimers	X: Creatinase/aminopeptidase-like	H: Creatinase/aminopeptidase (From Topology)	T: Creatinase/aminopeptidase	F: PF00557	ECOD (1.6)
B	PF01321	e1chmB2	A: mixed a+b and a/b	X: Ribonuclease H-like	H: Creatinase/prolidase N-terminal domain (From Topology)	T: Creatinase/prolidase N-terminal domain	F: PF01321	ECOD (1.6)

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)
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)

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	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, B	CREATINE AMIDINOHYDROLASE	creatinase activity hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds, in linear amidines hydrolase activity catalytic activity hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR039394	Creatinase, C-terminal	Domain
A, B	IPR000587	Creatinase, N-terminal	Domain
A, B	IPR029149	Creatinase/Aminopeptidase P/Spt16, N-terminal	Homologous Superfamily
A, B	IPR036005	Creatinase/aminopeptidase-like	Homologous Superfamily
A, B	IPR000994	Peptidase M24	Domain

Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage

Chains	Enzyme Name	Description	Catalytic Residues
A	creatinase M-CSA #96	Creatinase or creatine amidinohydrolase (EC:3.5.3.3) catalyses the conversion of creatine and water to sarcosine and urea. This is a key step in the metabolic breakdown of creatinine by micro-organisms. Creatinase is also found in higher animals but its metabolic role is as yet not known. The enzyme works as a homodimer, and is induced by choline chloride. Each monomer of creatinase has two clearly defined domains, a small N-terminal domain, and a large C-terminal domain. The C-terminal domain is a member of the MEROPS peptidase family M24 (clan MG), which share a common structural-fold, the \"pita-bread\" fold. The active site is located between the N- and C-terminal domains.	Defined by 3 residues: HIS:A-231 [auth A-232]GLU:A-261 [auth A-262]GLU:A-357 [auth A-358] \| Explore in 3D: M-CSA Motif Definition Search M-CSA Motif EC: 3.5.3.3 (PDB Primary Data) Search M-CSA Motif + EC 3.5.3.3

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.