7EQH | pdb_00007eqh

Crystal structure of Arabidopsis GUN2/HO1 in complex with heme

External Resource: Annotation

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

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	Heme_oxygenase	e7eqhB1	A: alpha bundles	X: Ferritin/Heme oxygenase/4-helical cytokines	H: Ferritin/Heme oxygenase	T: Heme oxygenase/Ribonucleotide reductase	F: Heme_oxygenase	ECOD (1.6)
A	Heme_oxygenase	e7eqhA1	A: alpha bundles	X: Ferritin/Heme oxygenase/4-helical cytokines	H: Ferritin/Heme oxygenase	T: Heme oxygenase/Ribonucleotide reductase	F: Heme_oxygenase	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF01126	Heme oxygenase (Heme_oxygenase)	Heme oxygenase		Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Heme oxygenase 1, chloroplastic	oxidoreductase activity monooxygenase activity oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen heme oxygenase (decyclizing) activity catalytic activity oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen, reduced flavin or flavoprotein as one donor, and incorporation of one atom of oxygen binding tetrapyrrole binding heme binding cation binding ion binding metal ion binding small molecule binding	cellular response to stimulus regulation of biological process regulation of cellular process response to stimulus signaling biological regulation chloroplast-nucleus signaling pathway intracellular signal transduction cell communication cellular process signal transduction flavonoid metabolic process flavonoid biosynthetic process biosynthetic process cellular response to stimulus regulation of biological process regulation of cellular process response to stimulus signaling biological regulation chloroplast-nucleus signaling pathway intracellular signal transduction cell communication cellular process signal transduction flavonoid metabolic process flavonoid biosynthetic process biosynthetic process metabolic process heme metabolic process pigment metabolic process catabolic process heme oxidation tetrapyrrole metabolic process porphyrin-containing compound catabolic process porphyrin-containing compound metabolic process tetrapyrrole catabolic process regulation of stomatal movement stomatal movement response to light stimulus cellular response to radiation response to UV cellular response to environmental stimulus cellular response to UV-C response to UV-C cellular response to light stimulus response to radiation response to abiotic stimulus cellular response to abiotic stimulus cellular response to UV developmental process multicellular organismal process regulation of growth regulation of developmental growth regulation of developmental process developmental growth growth tissue development regulation of meristem growth meristem development meristem maintenance anatomical structure development meristem growth carotenoid biosynthetic process isoprenoid biosynthetic process lipid biosynthetic process pigment biosynthetic process primary metabolic process terpenoid biosynthetic process tetraterpenoid biosynthetic process terpenoid metabolic process carotenoid metabolic process lipid metabolic process isoprenoid metabolic process phytochromobilin biosynthetic process oxoacid metabolic process small molecule biosynthetic process dicarboxylic acid metabolic process carboxylic acid metabolic process organic acid metabolic process organic acid biosynthetic process carboxylic acid biosynthetic process tetrapyrrole biosynthetic process small molecule metabolic process dicarboxylic acid biosynthetic process photosynthesis	membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure plastid organelle cytoplasm intracellular membrane-bounded organelle chloroplast

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR016951	Haem oxygenase (decyclizing), plant	Family
A, B	IPR002051	Haem oxygenase	Family
A, B	IPR016084	Haem oxygenase-like, multi-helical	Homologous Superfamily
A, B	IPR016053	Haem oxygenase-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 R01GM157729.