5GUX | pdb_00005gux

Cytochrome c-dependent nitric oxide reductase (cNOR) from Pseudomonas aeruginosa in complex with xenon

External Resource: Annotation

Domain Annotation: ECOD Classification
Domain Annotation: CATH
IMGT Antibody Annotation
SAbDab Antibody Annotation
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Membrane Protein Annotation: PDBTM

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
D [auth C]	LptF_LptG	e5guxC1	A: a/b three-layered sandwiches	X: TIM beta/alpha-barrel	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: LptF_LptG	ECOD (v294.1)
C [auth B]	LptF_LptG	e5guxB1	A: a/b three-layered sandwiches	X: TIM beta/alpha-barrel	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: LptF_LptG	ECOD (v294.1)
B [auth H]	LptF_LptG	e5guxH1	A: a/b three-layered sandwiches	X: TIM beta/alpha-barrel	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: LptF_LptG	ECOD (v294.1)
A [auth L]	LptF_LptG	e5guxL1	A: a/b three-layered sandwiches	X: TIM beta/alpha-barrel	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: LptF_LptG	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
D [auth C]	1.10.760.10	Mainly Alpha	Orthogonal Bundle	Cytochrome Bc1 Complex	Chain D, domain 2	CATH (4.3.0)
C [auth B]	1.20.210.10	Mainly Alpha	Up-down Bundle	Cytochrome C Oxidase	Chain A	CATH (4.3.0)
B [auth H]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
A [auth L]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)

IMGT Antibody Annotation IMGT Database Homepage

Chain	Protein Name	Description	Organism Name	Gene Allele Name(s)	Domain Name(s)	Receptor Type	Receptor Description	Provenance Source
B [auth H]	Antibody Fab Fragment	null	Mus musculus (house mouse)	-	-	IG	FAB-GAMMA-1_KAPPA	IMGT (202611-0)
A [auth L]	Antibody Fab Fragment	L-KAPPA	Mus musculus (house mouse)	IGKV16-10401, IGKJ501, IGKC01, IGKC02	V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA	IG	FAB-GAMMA-1_KAPPA	IMGT (202611-0)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
B [auth H]	Heavy Chain	IGHV1	-	nitric oxide reductase subunit b \| nitric oxide reductase subunit c	SAbDab (2026-03-27)
A [auth L]	Light Chain	IGKV16	Kappa	nitric oxide reductase subunit b \| nitric oxide reductase subunit c	SAbDab (2026-03-27)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
D [auth C]	PF00034	Cytochrome c (Cytochrom_C)	Cytochrome c	The Pfam entry does not include all Prosite members. The cytochrome 556 and cytochrome c' families are not included. All these are now in a new clan together. The C-terminus of DUF989, Pfam:PF06181, has now been merged into this family.	Domain
C [auth B]	PF00115	Cytochrome C and Quinol oxidase polypeptide I (COX1)	Cytochrome C and Quinol oxidase polypeptide I	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
D [auth C]	Nitric oxide reductase subunit C	binding tetrapyrrole binding heme binding electron transfer activity cation binding ion binding metal ion binding small molecule binding	-	cell periphery cellular anatomical structure plasma membrane membrane
C [auth B]	Nitric oxide reductase subunit B	oxidoreductase activity, acting on other nitrogenous compounds as donors, cytochrome as acceptor oxidoreductase activity oxidoreductase activity, acting on other nitrogenous compounds as donors nitric oxide reductase activity catalytic activity monoatomic cation transmembrane transporter activity proton transmembrane transporter activity primary active transmembrane transporter activity cytochrome-c oxidase activity electron transfer activity active monoatomic ion transmembrane transporter activity oxidoreduction-driven active transmembrane transporter activity active transmembrane transporter activity monoatomic ion transmembrane transporter activity oxidoreductase activity, acting on other nitrogenous compounds as donors, cytochrome as acceptor oxidoreductase activity oxidoreductase activity, acting on other nitrogenous compounds as donors nitric oxide reductase activity catalytic activity monoatomic cation transmembrane transporter activity proton transmembrane transporter activity primary active transmembrane transporter activity cytochrome-c oxidase activity electron transfer activity active monoatomic ion transmembrane transporter activity oxidoreduction-driven active transmembrane transporter activity active transmembrane transporter activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity binding tetrapyrrole binding heme binding cation binding ion binding metal ion binding small molecule binding	nitrogen cycle metabolic process denitrification pathway metabolic process cellular process cellular respiration energy derivation by oxidation of organic compounds respiratory electron transport chain electron transport chain generation of precursor metabolites and energy aerobic respiration	cell periphery cellular anatomical structure plasma membrane membrane
B [auth H]	Antibody fab fragment heavy chain	-	-	-
A [auth L]	Antibody fab fragment light chain	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
D [auth C]	IPR036909	Cytochrome c-like domain superfamily	Homologous Superfamily
D [auth C]	IPR009056	Cytochrome c-like domain	Domain
D [auth C]	IPR051811	Cytochrome c550/c551-like	Family
C [auth B]	IPR036927	Cytochrome c oxidase-like, subunit I superfamily	Homologous Superfamily
C [auth B]	IPR000883	Cytochrome c oxidase subunit I	Family
C [auth B]	IPR023615	Cytochrome c oxidase, subunit I, copper-binding site	Binding Site
C [auth B]	IPR023616	Cytochrome c oxidase-like, subunit I domain	Domain

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
C [auth B], D [auth C]	PDBTM	Annotated as membrane protein by PDBTM

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.