4AX3 | pdb_00004ax3

Structure of three-domain heme-Cu nitrite reductase from Ralstonia pickettii at 1.6 A resolution

External Resource: Annotation

Domain Annotation: ECOD Classification
Domain Annotation: CATH
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)
D	Cu-oxidase_2_2	e4ax3D4	A: beta sandwiches	X: Cupredoxin-like	H: Cupredoxin-related (From Topology)	T: Cupredoxin-related	F: Cu-oxidase_2_2	ECOD (1.6)
D	Cu-oxidase_3_1	e4ax3D5	A: beta sandwiches	X: Cupredoxin-like	H: Cupredoxin-related (From Topology)	T: Cupredoxin-related	F: Cu-oxidase_3_1	ECOD (1.6)
D	Cytochrome_CBB3	e4ax3D6	A: alpha arrays	X: Cytochrome c-like	H: Cytochrome c (From Topology)	T: Cytochrome c	F: Cytochrome_CBB3	ECOD (1.6)
C	Cu-oxidase_2_2	e4ax3C4	A: beta sandwiches	X: Cupredoxin-like	H: Cupredoxin-related (From Topology)	T: Cupredoxin-related	F: Cu-oxidase_2_2	ECOD (1.6)
C	Cu-oxidase_3_1	e4ax3C5	A: beta sandwiches	X: Cupredoxin-like	H: Cupredoxin-related (From Topology)	T: Cupredoxin-related	F: Cu-oxidase_3_1	ECOD (1.6)
C	Cytochrome_CBB3	e4ax3C6	A: alpha arrays	X: Cytochrome c-like	H: Cytochrome c (From Topology)	T: Cytochrome c	F: Cytochrome_CBB3	ECOD (1.6)
B	Cu-oxidase_2_2	e4ax3B4	A: beta sandwiches	X: Cupredoxin-like	H: Cupredoxin-related (From Topology)	T: Cupredoxin-related	F: Cu-oxidase_2_2	ECOD (1.6)
B	Cu-oxidase_3_1	e4ax3B5	A: beta sandwiches	X: Cupredoxin-like	H: Cupredoxin-related (From Topology)	T: Cupredoxin-related	F: Cu-oxidase_3_1	ECOD (1.6)
B	Cytochrome_CBB3	e4ax3B6	A: alpha arrays	X: Cytochrome c-like	H: Cytochrome c (From Topology)	T: Cytochrome c	F: Cytochrome_CBB3	ECOD (1.6)
A	Cu-oxidase_2_2	e4ax3A4	A: beta sandwiches	X: Cupredoxin-like	H: Cupredoxin-related (From Topology)	T: Cupredoxin-related	F: Cu-oxidase_2_2	ECOD (1.6)
A	Cu-oxidase_3_1	e4ax3A5	A: beta sandwiches	X: Cupredoxin-like	H: Cupredoxin-related (From Topology)	T: Cupredoxin-related	F: Cu-oxidase_3_1	ECOD (1.6)
A	Cytochrome_CBB3	e4ax3A6	A: alpha arrays	X: Cytochrome c-like	H: Cytochrome c (From Topology)	T: Cytochrome c	F: Cytochrome_CBB3	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
D	2.60.40.420	Mainly Beta	Sandwich	Immunoglobulin-like	Cupredoxins - blue copper proteins	CATH (4.2.0)
D	1.10.760.10	Mainly Alpha	Orthogonal Bundle	Cytochrome Bc1 Complex	Chain D, domain 2	CATH (4.2.0)
C	2.60.40.420	Mainly Beta	Sandwich	Immunoglobulin-like	Cupredoxins - blue copper proteins	CATH (4.2.0)
C	1.10.760.10	Mainly Alpha	Orthogonal Bundle	Cytochrome Bc1 Complex	Chain D, domain 2	CATH (4.2.0)
B	2.60.40.420	Mainly Beta	Sandwich	Immunoglobulin-like	Cupredoxins - blue copper proteins	CATH (4.2.0)
B	1.10.760.10	Mainly Alpha	Orthogonal Bundle	Cytochrome Bc1 Complex	Chain D, domain 2	CATH (4.2.0)
A	2.60.40.420	Mainly Beta	Sandwich	Immunoglobulin-like	Cupredoxins - blue copper proteins	CATH (4.2.0)
A	1.10.760.10	Mainly Alpha	Orthogonal Bundle	Cytochrome Bc1 Complex	Chain D, domain 2	CATH (4.2.0)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	COPPER-CONTAINING NITRITE REDUCTASE	cation binding transition metal ion binding copper ion binding ion binding binding metal ion binding small molecule binding tetrapyrrole binding heme binding oxidoreductase activity, acting on other nitrogenous compounds as donors, cytochrome as acceptor oxidoreductase activity oxidoreductase activity, acting on other nitrogenous compounds as donors nitrite reductase (NO-forming) activity nitrite reductase activity cation binding transition metal ion binding copper ion binding ion binding binding metal ion binding small molecule binding tetrapyrrole binding heme binding oxidoreductase activity, acting on other nitrogenous compounds as donors, cytochrome as acceptor oxidoreductase activity oxidoreductase activity, acting on other nitrogenous compounds as donors nitrite reductase (NO-forming) activity nitrite reductase activity catalytic activity electron transfer activity	-	cellular anatomical structure periplasmic space

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR051459	Cytochrome c-type Dehydrogenase	Family
A, B, C, D	IPR036909	Cytochrome c-like domain superfamily	Homologous Superfamily
A, B, C, D	IPR008972	Cupredoxin	Homologous Superfamily
A, B, C, D	IPR009056	Cytochrome c-like domain	Domain
A, B, C, D	IPR001287	Nitrite reductase, copper-type	Family
A, B, C, D	IPR011707	Multicopper oxidase-like, N-terminal	Domain

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.