1ITK

Crystal structure of catalase-peroxidase from Haloarcula marismortui

External Resource: Annotation

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1itka1	All alpha proteins	Heme-dependent peroxidases	Heme-dependent peroxidases	Catalase-peroxidase KatG	Catalase-peroxidase KatG	(Haloarcula marismortui ) [TaxId: 2238 ],	SCOPe (2.08)
B	d1itkb1	All alpha proteins	Heme-dependent peroxidases	Heme-dependent peroxidases	Catalase-peroxidase KatG	Catalase-peroxidase KatG	(Haloarcula marismortui ) [TaxId: 2238 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Heme-dependent peroxidases	8039716	3000844	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Heme-dependent peroxidases	8039715	3000844	SCOP2B (2022-06-29)
B	SCOP2 Family	Catalase-peroxidase KatG	8027336	4001950	SCOP2 (2022-06-29)
B	SCOP2 Family	Catalase-peroxidase KatG	8027337	4001950	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	Heme-dependent peroxidases	8039715	3000844	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	Heme-dependent peroxidases	8039716	3000844	SCOP2 (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	peroxidase	e1itkA1	A: alpha complex topology	X: Heme-dependent peroxidases (From Topology)	H: Heme-dependent peroxidases (From Topology)	T: Heme-dependent peroxidases	F: peroxidase	ECOD (1.6)
B	peroxidase	e1itkB1	A: alpha complex topology	X: Heme-dependent peroxidases (From Topology)	H: Heme-dependent peroxidases (From Topology)	T: Heme-dependent peroxidases	F: peroxidase	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.520.10	Mainly Alpha	Orthogonal Bundle	Peroxidase	domain 1	CATH (4.3.0)
A	1.10.420.10	Mainly Alpha	Orthogonal Bundle	Peroxidase	domain 2	CATH (4.3.0)
B	1.10.520.10	Mainly Alpha	Orthogonal Bundle	Peroxidase	domain 1	CATH (4.3.0)
B	1.10.420.10	Mainly Alpha	Orthogonal Bundle	Peroxidase	domain 2	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF00141	Peroxidase (peroxidase)	Peroxidase	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	catalase-peroxidase	peroxidase activity oxidoreductase activity antioxidant activity catalase activity oxidoreductase activity, acting on peroxide as acceptor catalytic activity binding organic cyclic compound binding tetrapyrrole binding heme binding cation binding ion binding metal ion binding small molecule binding	catabolic process hydrogen peroxide metabolic process reactive oxygen species metabolic process metabolic process cellular process hydrogen peroxide catabolic process cellular response to stimulus response to stimulus cellular response to oxidative stress response to oxygen-containing compound cellular response to chemical stress cellular response to oxygen-containing compound cellular response to hydrogen peroxide response to reactive oxygen species catabolic process hydrogen peroxide metabolic process reactive oxygen species metabolic process metabolic process cellular process hydrogen peroxide catabolic process cellular response to stimulus response to stimulus cellular response to oxidative stress response to oxygen-containing compound cellular response to chemical stress cellular response to oxygen-containing compound cellular response to hydrogen peroxide response to reactive oxygen species response to hydrogen peroxide response to oxidative stress cellular response to reactive oxygen species cellular response to chemical stimulus cellular response to stress response to stress response to chemical	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR010255	Haem peroxidase superfamily	Homologous Superfamily
A, B	IPR000763	Catalase-peroxidase haem	Family
A, B	IPR002016	Haem peroxidase	Domain
A, B	IPR019794	Peroxidase, active site	Active Site
A, B	IPR019793	Peroxidases heam-ligand binding site	Binding Site

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.