6C6G

An unexpected vestigial protein complex reveals the evolutionary origins of an s-triazine catabolic enzyme. Inhibitor bound complex.

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Amidase signature (AS) enzymes	8082877	3001251	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Amidase signature (AS) enzymes	8082877	3001251	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	PF01425	e6c6gA1	A: a/b three-layered sandwiches	X: Amidase signature (AS) enzymes (From Topology)	H: Amidase signature (AS) enzymes (From Topology)	T: Amidase signature (AS) enzymes	F: PF01425	ECOD (1.6)
B	PF01425	e6c6gB1	A: a/b three-layered sandwiches	X: Amidase signature (AS) enzymes (From Topology)	H: Amidase signature (AS) enzymes (From Topology)	T: Amidase signature (AS) enzymes	F: PF01425	ECOD (1.6)
C	PF13318	e6c6gC1	A: extended segments	X: Glu-tRNAGln amidotransferase C subunit (From Topology)	H: Glu-tRNAGln amidotransferase C subunit (From Topology)	T: Glu-tRNAGln amidotransferase C subunit	F: PF13318	ECOD (1.6)
D	PF13318	e6c6gD1	A: extended segments	X: Glu-tRNAGln amidotransferase C subunit (From Topology)	H: Glu-tRNAGln amidotransferase C subunit (From Topology)	T: Glu-tRNAGln amidotransferase C subunit	F: PF13318	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.90.1300.10	Alpha Beta	Alpha-Beta Complex	Amidase signature (AS) enzymes	Amidase signature (AS) domain	CATH (4.3.0)
B	3.90.1300.10	Alpha Beta	Alpha-Beta Complex	Amidase signature (AS) enzymes	Amidase signature (AS) domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF01425	Amidase (Amidase)	Amidase	-	Family
C, D	PF13318	1-carboxybiuret hydrolase subunit AtzG-like (AtzG-like)	1-carboxybiuret hydrolase subunit AtzG-like	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Biuret hydrolase	hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds, in linear amides hydrolase activity catalytic activity biuret amidohydrolase activity hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds	cellular response to stimulus catabolic process response to stimulus response to xenobiotic stimulus cellular catabolic process organic substance metabolic process s-triazine compound metabolic process polyamine catabolic process amine catabolic process organonitrogen compound catabolic process organonitrogen compound metabolic process atrazine metabolic process cellular response to xenobiotic stimulus cellular metabolic process cellular response to stimulus catabolic process response to stimulus response to xenobiotic stimulus cellular catabolic process organic substance metabolic process s-triazine compound metabolic process polyamine catabolic process amine catabolic process organonitrogen compound catabolic process organonitrogen compound metabolic process atrazine metabolic process cellular response to xenobiotic stimulus cellular metabolic process cellular biogenic amine catabolic process polyamine metabolic process s-triazine compound catabolic process xenobiotic catabolic process organic cyclic compound catabolic process xenobiotic metabolic process amine metabolic process organic cyclic compound metabolic process cellular response to chemical stimulus response to chemical atrazine catabolic process metabolic process cellular process organic substance catabolic process biogenic amine metabolic process	-
C, D	AtzG	-	cellular response to stimulus catabolic process response to stimulus response to xenobiotic stimulus cellular catabolic process organic substance metabolic process s-triazine compound metabolic process polyamine catabolic process amine catabolic process organonitrogen compound catabolic process organonitrogen compound metabolic process atrazine metabolic process cellular response to xenobiotic stimulus cellular metabolic process cellular response to stimulus catabolic process response to stimulus response to xenobiotic stimulus cellular catabolic process organic substance metabolic process s-triazine compound metabolic process polyamine catabolic process amine catabolic process organonitrogen compound catabolic process organonitrogen compound metabolic process atrazine metabolic process cellular response to xenobiotic stimulus cellular metabolic process cellular biogenic amine catabolic process polyamine metabolic process s-triazine compound catabolic process xenobiotic catabolic process organic cyclic compound catabolic process xenobiotic metabolic process amine metabolic process organic cyclic compound metabolic process cellular response to chemical stimulus response to chemical atrazine catabolic process metabolic process cellular process organic substance catabolic process biogenic amine metabolic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR036928	Amidase signature (AS) superfamily	Homologous Superfamily
A, B	IPR014087	1-carboxybiuret hydrolase, AtzE subunit	Family
A, B	IPR000120	Amidase	Family
A, B	IPR023631	Amidase signature domain	Domain
C, D	IPR025148	1-carboxybiuret hydrolase subunit AtzG-like	Family

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.