Annotations: 7AA3

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Heme-dependent peroxidases	8038657	3000844	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Heme-dependent peroxidases	8038657	3000844	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	PARP_reg	e7aa3A1	A: a/b three-layered sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: PARP_reg	ECOD (v294.1)
B	PARP_reg	e7aa3B1	A: a/b three-layered sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: PARP_reg	ECOD (v294.1)

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 (utative)

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 NAD binding NADH binding binding nucleotide binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding peroxidase activity oxidoreductase activity antioxidant activity catalase activity oxidoreductase activity, acting on peroxide as acceptor catalytic activity NAD binding NADH binding binding nucleotide binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding heterocyclic compound binding small molecule binding NADPH binding NADP binding oxidoreductase activity, acting on a heme group of donors, nitrogenous group as acceptor oxidoreductase activity, acting on a heme group of donors tetrapyrrole binding heme binding cation binding metal ion 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 response to antibiotic regulation of cellular process positive regulation of biological process regulation of cellular response to stress regulation of primary metabolic process positive regulation of response to stimulus nucleobase-containing compound metabolic process positive regulation of metabolic process positive regulation of DNA repair regulation of response to stress positive regulation of macromolecule metabolic process regulation of nucleobase-containing compound metabolic process positive regulation of cellular process DNA repair regulation of biological process biological regulation primary metabolic process DNA metabolic process regulation of macromolecule metabolic process nucleic acid metabolic process regulation of DNA repair positive regulation of DNA metabolic process regulation of response to stimulus DNA damage response macromolecule metabolic process regulation of metabolic process regulation of DNA metabolic process	cellular anatomical structure extracellular region intracellular anatomical structure cytoplasm cytosol cell periphery plasma membrane membrane external encapsulating structure cell wall peptidoglycan-based cell wall

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR002016	Haem peroxidase	Domain
A, B	IPR019794	Peroxidase, active site	Active Site
A, B	IPR010255	Haem peroxidase superfamily	Homologous Superfamily
A, B	IPR000763	Catalase-peroxidase haem	Family
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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.