Annotations: 2ISL

BluB bound to reduced flavin (FMNH2) and molecular oxygen. (clear crystal form)

External Resource: Annotation

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: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
H	SCOP2B Superfamily	FMN-dependent nitroreductase-like	8060426	3001947	SCOP2B (2022-06-29)
G	SCOP2B Superfamily	FMN-dependent nitroreductase-like	8060426	3001947	SCOP2B (2022-06-29)
F	SCOP2B Superfamily	FMN-dependent nitroreductase-like	8060426	3001947	SCOP2B (2022-06-29)
E	SCOP2B Superfamily	FMN-dependent nitroreductase-like	8060426	3001947	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	FMN-dependent nitroreductase-like	8060426	3001947	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	FMN-dependent nitroreductase-like	8060426	3001947	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	FMN-dependent nitroreductase-like	8060426	3001947	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	FMN-dependent nitroreductase-like	8060426	3001947	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)
H	HTHP	e2islH1	A: alpha arrays	X: HTH	H: HTH	T: tetra-helical, lambda repressor-like	F: HTHP	ECOD (v295.2)
G	HTHP	e2islG1	A: alpha arrays	X: HTH	H: HTH	T: tetra-helical, lambda repressor-like	F: HTHP	ECOD (v295.2)
F	HTHP	e2islF1	A: alpha arrays	X: HTH	H: HTH	T: tetra-helical, lambda repressor-like	F: HTHP	ECOD (v295.2)
E	HTHP	e2islE1	A: alpha arrays	X: HTH	H: HTH	T: tetra-helical, lambda repressor-like	F: HTHP	ECOD (v295.2)
D	HTHP	e2islD1	A: alpha arrays	X: HTH	H: HTH	T: tetra-helical, lambda repressor-like	F: HTHP	ECOD (v295.2)
C	HTHP	e2islC1	A: alpha arrays	X: HTH	H: HTH	T: tetra-helical, lambda repressor-like	F: HTHP	ECOD (v295.2)
B	HTHP	e2islB1	A: alpha arrays	X: HTH	H: HTH	T: tetra-helical, lambda repressor-like	F: HTHP	ECOD (v295.2)
A	HTHP	e2islA1	A: alpha arrays	X: HTH	H: HTH	T: tetra-helical, lambda repressor-like	F: HTHP	ECOD (v295.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
H	3.40.109.10	Alpha Beta	3-Layer(aba) Sandwich	NADH Oxidase	NADH Oxidase	CATH (4.3.0)
G	3.40.109.10	Alpha Beta	3-Layer(aba) Sandwich	NADH Oxidase	NADH Oxidase	CATH (4.3.0)
F	3.40.109.10	Alpha Beta	3-Layer(aba) Sandwich	NADH Oxidase	NADH Oxidase	CATH (4.3.0)
E	3.40.109.10	Alpha Beta	3-Layer(aba) Sandwich	NADH Oxidase	NADH Oxidase	CATH (4.3.0)
D	3.40.109.10	Alpha Beta	3-Layer(aba) Sandwich	NADH Oxidase	NADH Oxidase	CATH (4.3.0)
C	3.40.109.10	Alpha Beta	3-Layer(aba) Sandwich	NADH Oxidase	NADH Oxidase	CATH (4.3.0)
B	3.40.109.10	Alpha Beta	3-Layer(aba) Sandwich	NADH Oxidase	NADH Oxidase	CATH (4.3.0)
A	3.40.109.10	Alpha Beta	3-Layer(aba) Sandwich	NADH Oxidase	NADH Oxidase	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D, E A, B, C, D, E, F, G, H	PF00881	Nitroreductase family (Nitroreductase)	Nitroreductase family	The nitroreductase family comprises a group of FMN- or FAD-dependent and NAD(P)H-dependent enzymes able to metabolize nitrosubstituted compounds.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D, E A, B, C, D, E, F, G, H	BluB	oxidoreductase activity oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen catalytic activity oxidoreductase activity, acting on single donors with incorporation of molecular oxygen, incorporation of two atoms of oxygen 5,6-dimethylbenzimidazole synthase activity oxidoreductase activity, acting on single donors with incorporation of molecular oxygen dioxygenase activity	cobalamin metabolic process cobalamin biosynthetic process water-soluble vitamin biosynthetic process tetrapyrrole metabolic process small molecule biosynthetic process vitamin biosynthetic process vitamin metabolic process tetrapyrrole biosynthetic process biosynthetic process small molecule metabolic process metabolic process cellular process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D, E A, B, C, D, E, F, G, H	IPR050627	Nitroreductase/BluB	Family
A, B, C, D, E A, B, C, D, E, F, G, H	IPR029479	Nitroreductase	Domain
A, B, C, D, E A, B, C, D, E, F, G, H	IPR012825	5,6-dimethylbenzimidazole synthase BluB	Family
A, B, C, D, E A, B, C, D, E, F, G, H	IPR000415	Nitroreductase-like	Homologous Superfamily