Annotations: 3KLC

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d3klca_	Alpha and beta proteins (a+b)	Carbon-nitrogen hydrolase	Carbon-nitrogen hydrolase	Carbamilase	automated matches	(Pyrococcus abyssi GE5 ) [TaxId: 272844 ],	SCOPe (2.08)
B	d3klcb_	Alpha and beta proteins (a+b)	Carbon-nitrogen hydrolase	Carbon-nitrogen hydrolase	Carbamilase	automated matches	(Pyrococcus abyssi GE5 ) [TaxId: 272844 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Carbon-nitrogen hydrolases	8081720	3001086	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Carbon-nitrogen hydrolases	8081720	3001086	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	CN_hydrolase	e3klcA1	A: a+b four layers	X: Carbon-nitrogen hydrolase-like	H: Carbon-nitrogen hydrolase (From Topology)	T: Carbon-nitrogen hydrolase	F: CN_hydrolase	ECOD (1.6)
B	CN_hydrolase	e3klcB1	A: a+b four layers	X: Carbon-nitrogen hydrolase-like	H: Carbon-nitrogen hydrolase (From Topology)	T: Carbon-nitrogen hydrolase	F: CN_hydrolase	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.60.110.10	Alpha Beta	4-Layer Sandwich	Nitrilase/N-carbamoyl-D-aminoacid amidohydrolase	Carbon-nitrogen hydrolase	CATH (4.3.0)
B	3.60.110.10	Alpha Beta	4-Layer Sandwich	Nitrilase/N-carbamoyl-D-aminoacid amidohydrolase	Carbon-nitrogen hydrolase	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF00795	Carbon-nitrogen hydrolase (CN_hydrolase)	Carbon-nitrogen hydrolase	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Beta ureidopropionase (Beta-alanine synthase)	indole-3-acetonitrile nitrilase activity hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds, in nitriles nitrilase activity hydrolase activity catalytic activity hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds, in linear amides N-carbamoylputrescine amidase activity beta-ureidopropionase activity	organonitrogen compound metabolic process beta-alanine metabolic process oxoacid metabolic process small molecule biosynthetic process cellular biosynthetic process cellular metabolic process organonitrogen compound biosynthetic process carboxylic acid metabolic process amino acid metabolic process primary metabolic process organic acid metabolic process organic acid biosynthetic process beta-alanine biosynthetic process beta-alanine biosynthetic process via 3-ureidopropionate carboxylic acid biosynthetic process organonitrogen compound metabolic process beta-alanine metabolic process oxoacid metabolic process small molecule biosynthetic process cellular biosynthetic process cellular metabolic process organonitrogen compound biosynthetic process carboxylic acid metabolic process amino acid metabolic process primary metabolic process organic acid metabolic process organic acid biosynthetic process beta-alanine biosynthetic process beta-alanine biosynthetic process via 3-ureidopropionate carboxylic acid biosynthetic process non-proteinogenic amino acid metabolic process amino acid biosynthetic process biosynthetic process metabolic process small molecule metabolic process cellular process non-proteinogenic amino acid biosynthetic process alpha-amino acid metabolic process arginine metabolic process biogenic amine biosynthetic process putrescine metabolic process polyamine metabolic process putrescine biosynthetic process amine metabolic process amine biosynthetic process polyamine biosynthetic process putrescine biosynthetic process from arginine biogenic amine metabolic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR036526	Carbon-nitrogen hydrolase superfamily	Homologous Superfamily
A, B	IPR050345	Aliphatic Amidase/Beta-Ureidopropionase	Family
A, B	IPR053613	Aliphatic Nitrilase	Family
A, B	IPR003010	Carbon-nitrogen hydrolase	Domain

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
A, B	CSX	Parent Component: CYS RESID: AA0451 PSI-MOD : 2'-(S-L-cysteinyl)-6'-hydroxy-L-tryptophan sulfoxide MOD:01380

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 R01GM133198.