Annotations: 8E3V

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
D	SCOP2B Superfamily	Helical backbone metal receptor	8043192	3001679	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Helical backbone metal receptor	8043192	3001679	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Helical backbone metal receptor	8043190	3001679	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Helical backbone metal receptor	8043190	3001679	SCOP2B (2022-06-29)

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
D	MCM_OB	e8e3vD1	A: alpha arrays	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: MCM_OB	ECOD (v295.2)
B	MCM_OB	e8e3vB1	A: alpha arrays	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: MCM_OB	ECOD (v295.2)
C	MCM_OB	e8e3vC1	A: alpha arrays	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: MCM_OB	ECOD (v295.2)
A	MCM_OB	e8e3vA1	A: alpha arrays	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: MCM_OB	ECOD (v295.2)

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
B, D	Nitrogenase molybdenum-iron protein beta chain	oxidoreductase activity nitrogenase activity oxidoreductase activity, acting on iron-sulfur proteins as donors catalytic activity oxidoreductase activity, acting on iron-sulfur proteins as donors, dinitrogen as acceptor	nitrogen cycle metabolic process metabolic process cellular process nitrogen fixation	protein-containing complex molybdenum-iron nitrogenase complex catalytic complex nitrogenase complex oxidoreductase complex intracellular protein-containing complex
A, C	Nitrogenase molybdenum-iron protein alpha chain	iron-sulfur cluster binding binding metal cluster binding small molecule binding oxidoreductase activity nitrogenase activity oxidoreductase activity, acting on iron-sulfur proteins as donors catalytic activity oxidoreductase activity, acting on iron-sulfur proteins as donors, dinitrogen as acceptor	-	protein-containing complex molybdenum-iron nitrogenase complex catalytic complex nitrogenase complex oxidoreductase complex intracellular protein-containing complex

Chains	Accession	Name	Type
B, D	IPR000510	Nitrogenase/oxidoreductase, component 1	Domain
B, D	IPR005976	Nitrogenase molybdenum-iron protein beta chain	Family
B, D	IPR000318	Nitrogenase component 1, conserved site	Conserved Site
B, D	IPR050152	ChlB/BchB/BchZ	Family
B, D	IPR024564	Nitrogenase molybdenum-iron protein beta chain, N-terminal	Domain
A, C	IPR000510	Nitrogenase/oxidoreductase, component 1	Domain
A, C	IPR005972	Nitrogenase molybdenum-iron protein alpha chain	Family
A, C	IPR000318	Nitrogenase component 1, conserved site	Conserved Site
A, C	IPR010143	Nitrogenase component 1, alpha chain	Family