1OAH | pdb_00001oah

Cytochrome c Nitrite Reductase from Desulfovibrio desulfuricans ATCC 27774: The relevance of the two calcium sites in the structure of the catalytic subunit (NrfA).

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)
B	d1oahb_	All alpha proteins	Multiheme cytochromes	Multiheme cytochromes	Di-heme elbow motif	Cytochrome c nitrite reductase	(Desulfovibrio desulfuricans ) [TaxId: 876 ],	SCOPe (2.08)
A	d1oaha_	All alpha proteins	Multiheme cytochromes	Multiheme cytochromes	Di-heme elbow motif	Cytochrome c nitrite reductase	(Desulfovibrio desulfuricans ) [TaxId: 876 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2 Family	HAO/Nir-like	8044583	4000358	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	HAO C-terminal domain-like	8056474	3002349	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	Di-heme elbow motif	8044584	3000145	SCOP2 (2022-06-29)
A	SCOP2B Superfamily	Di-heme elbow motif	8044584	3000145	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	HAO C-terminal domain-like	8056474	3002349	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)
B	Cytochrom_C552	e1oahB1	A: few secondary structure elements	X: Multiheme cytochromes	H: Di-heme elbow motif (From Topology)	T: Di-heme elbow motif	F: Cytochrom_C552	ECOD (1.6)
A	Cytochrom_C552	e1oahA1	A: few secondary structure elements	X: Multiheme cytochromes	H: Di-heme elbow motif (From Topology)	T: Di-heme elbow motif	F: Cytochrom_C552	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	1.10.1130.10	Mainly Alpha	Orthogonal Bundle	Flavocytochrome C3	Chain A, domain 2	CATH (4.3.0)
B	1.20.140.10	Mainly Alpha	Up-down Bundle	Butyryl-CoA Dehydrogenase, subunit A	domain 3	CATH (4.3.0)
A	1.10.1130.10	Mainly Alpha	Orthogonal Bundle	Flavocytochrome C3	Chain A, domain 2	CATH (4.3.0)
A	1.20.140.10	Mainly Alpha	Up-down Bundle	Butyryl-CoA Dehydrogenase, subunit A	domain 3	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF02335	Cytochrome c552 (Cytochrom_C552)	Cytochrome c552	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	CYTOCHROME C NITRITE REDUCTASE	oxidoreductase activity, acting on other nitrogenous compounds as donors, cytochrome as acceptor oxidoreductase activity nitrite reductase (cytochrome, ammonia-forming) activity oxidoreductase activity, acting on other nitrogenous compounds as donors nitrite reductase activity catalytic activity binding tetrapyrrole binding heme binding cation binding ion binding metal ion binding small molecule binding	anaerobic electron transport chain cellular respiration energy derivation by oxidation of organic compounds respiratory electron transport chain electron transport chain metabolic process cellular process generation of precursor metabolites and energy anaerobic respiration	cellular anatomical structure outer membrane-bounded periplasmic space cell envelope periplasmic space

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR036280	Multiheme cytochrome superfamily	Homologous Superfamily
A, B	IPR003321	Cytochrome c552	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.