Annotations: 4HHS

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Rrf2	e4hhsA1	A: alpha bundles	X: beta-Grasp	H: HTH	T: winged helix domain	F: Rrf2	ECOD (develop294)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.640.10	Mainly Alpha	Orthogonal Bundle	Myeloperoxidase, subunit C	Haem peroxidase domain superfamily, animal type	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF03098	Animal haem peroxidase (An_peroxidase)	Animal haem peroxidase		Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Alpha-dioxygenase	peroxidase activity oxidoreductase activity antioxidant activity oxidoreductase activity, acting on peroxide as acceptor catalytic activity oxidoreductase activity, acting on single donors with incorporation of molecular oxygen, incorporation of two atoms of oxygen oxidoreductase activity, acting on single donors with incorporation of molecular oxygen dioxygenase activity fatty acid alpha-dioxygenase activity binding tetrapyrrole binding heme binding cation binding ion binding peroxidase activity oxidoreductase activity antioxidant activity oxidoreductase activity, acting on peroxide as acceptor catalytic activity oxidoreductase activity, acting on single donors with incorporation of molecular oxygen, incorporation of two atoms of oxygen oxidoreductase activity, acting on single donors with incorporation of molecular oxygen dioxygenase activity fatty acid alpha-dioxygenase activity binding tetrapyrrole binding heme binding cation binding ion binding metal ion binding small molecule binding	cellular response to stimulus biological process involved in interspecies interaction between organisms response to stimulus response to other organism defense response immune response defense response to symbiont response to external stimulus cell death response to biotic stimulus symbiont-induced defense-related programmed cell death cellular response to stress defense response to other organism response to stress immune system process cellular response to stimulus biological process involved in interspecies interaction between organisms response to stimulus response to other organism defense response immune response defense response to symbiont response to external stimulus cell death response to biotic stimulus symbiont-induced defense-related programmed cell death cellular response to stress defense response to other organism response to stress immune system process plant-type hypersensitive response innate immune response cellular process response to external biotic stimulus programmed cell death fatty acid metabolic process long-chain fatty acid metabolic process oxoacid metabolic process carboxylic acid metabolic process primary metabolic process organic acid metabolic process metabolic process small molecule metabolic process monocarboxylic acid metabolic process lipid metabolic process defense response to bacterium response to bacterium response to chemical response to oxygen-containing compound response to salicylic acid cellular response to salicylic acid stimulus cellular response to chemical stimulus cellular response to oxygen-containing compound cellular response to oxidative stress cellular response to chemical stress response to reactive oxygen species cellular response to reactive oxygen species response to oxidative stress defense response to fungus response to fungus response to abscisic acid response to lipid response to hormone response to alcohol response to endogenous stimulus lipid catabolic process catabolic process lipid modification organic acid catabolic process fatty acid catabolic process monocarboxylic acid catabolic process fatty acid oxidation carboxylic acid catabolic process fatty acid alpha-oxidation lipid oxidation small molecule catabolic process systemic acquired resistance cellular response to nitrogen compound response to nitrogen compound cellular response to nitric oxide response to nitric oxide cellular response to reactive nitrogen species small molecule biosynthetic process oxylipin metabolic process organic acid biosynthetic process carboxylic acid biosynthetic process biosynthetic process oxylipin biosynthetic process unsaturated fatty acid metabolic process monocarboxylic acid biosynthetic process long-chain fatty acid biosynthetic process lipid biosynthetic process fatty acid biosynthetic process unsaturated fatty acid biosynthetic process (R)-2-hydroxy-alpha-linolenic acid biosynthetic process	lipid droplet intracellular organelle cellular anatomical structure intracellular anatomical structure organelle membraneless organelle intracellular membraneless organelle monolayer-surrounded lipid storage body

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR019791	Haem peroxidase, animal-type	Family
A	IPR034815	Alpha-dioxygenase	Family
A	IPR050783	Oxylipin biosynthesis and metabolism	Family
A	IPR037120	Haem peroxidase domain superfamily, animal type	Homologous Superfamily
A	IPR010255	Haem peroxidase superfamily	Homologous Superfamily

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.