Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2 FamilyHAO/Nir-like 8003664 4000358 SCOP2 (2022-06-29)
ASCOP2 SuperfamilyHAO C-terminal domain-like 8056472 3002349 SCOP2 (2022-06-29)
ASCOP2 SuperfamilyDi-heme elbow motif 8003665 3000145 SCOP2 (2022-06-29)
ASCOP2 SuperfamilyDi-heme elbow motif 8003666 3000145 SCOP2 (2022-06-29)
ASCOP2 SuperfamilyDi-heme elbow motif 8003667 3000145 SCOP2 (2022-06-29)
BSCOP2B SuperfamilyDi-heme elbow motif 8003667 3000145 SCOP2B (2022-06-29)
BSCOP2B SuperfamilyDi-heme elbow motif 8003665 3000145 SCOP2B (2022-06-29)
BSCOP2B SuperfamilyDi-heme elbow motif 8003666 3000145 SCOP2B (2022-06-29)
BSCOP2B SuperfamilyHAO C-terminal domain-like 8056472 3002349 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
AMulti-haem_cytoe1fgjA1 A: few secondary structure elementsX: Multiheme cytochromesH: Di-heme elbow motif (From Topology)T: Di-heme elbow motifF: Multi-haem_cytoECOD (1.6)
BMulti-haem_cytoe1fgjB1 A: few secondary structure elementsX: Multiheme cytochromesH: Di-heme elbow motif (From Topology)T: Di-heme elbow motifF: Multi-haem_cytoECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A, B
PF13447Seven times multi-haem cytochrome CxxCH (Multi-haem_cyto)Seven times multi-haem cytochrome CxxCHThis domain carries up to seven CxxCH repeated sequence motifs, characteristic of multi-haem cytochromes.Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A, B
HYDROXYLAMINE OXIDOREDUCTASE

InterPro: Protein Family Classification InterPro Database Homepage

ChainsAccessionNameType
A, B
IPR036280Multiheme cytochrome superfamilyHomologous Superfamily
A, B
IPR012138Hydroxylamine oxidaseFamily

Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage

ChainsEnzyme NameDescriptionCatalytic Residues
hydroxylamine oxidase  M-CSA #581

Hydroxylamine oxioreductase catalyses the conversion of hydroxylamines to nitrite. This is the second step in the respiratory system of nitrifying chemoautotrophic bacteria. Ammonia mono-oxygenase produces hydroxylamine which is reduced by hydroxylamine oxioreductase to product electrons which feed into an electron transport chain to produce energy. The enzyme employs 24 haem groups across three sub units which interact in a uniquely complicated electron transport chain.

Defined by 5 residues: HIS:A-233ASP:A-267HIS:A-268TYR:A-334TYR:A_3-467
 | 
 
Explore in 3DM-CSA Motif Definition