Annotations: 7QQA

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	AAA_31	e7qqaA1	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: AAA_31	ECOD (1.6)
B	AAA_31	e7qqaB1	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: AAA_31	ECOD (1.6)
C	AAA_31	e7qqaC1	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: AAA_31	ECOD (1.6)
D	AAA_31	e7qqaD1	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: AAA_31	ECOD (1.6)

Chains	Accession	Name	Description	Comments	Source
A, B, C, D	PF00142	4Fe-4S iron sulfur cluster binding proteins, NifH/frxC family (Fer4_NifH)	4Fe-4S iron sulfur cluster binding proteins, NifH/frxC family	-	Domain

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	Nitrogenase iron protein	binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding oxidoreductase activity oxidoreductase activity, acting on iron-sulfur proteins as donors catalytic activity carbonyl sulfide nitrogenase activity oxidoreductase activity, acting on iron-sulfur proteins as donors, dinitrogen as acceptor iron-sulfur cluster binding 4 iron, 4 sulfur cluster binding metal cluster binding cation binding metal ion binding nitrogenase activity	nitrogen cycle metabolic process nitrogen compound metabolic process metabolic process nitrogen fixation	-

Chains	Accession	Name	Type
A, B, C, D	IPR030655	NifH/chlL conserved site	Conserved Site
A, B, C, D	IPR000392	NifH/frxC family	Family
A, B, C, D	IPR005977	Nitrogenase iron protein NifH	Family
A, B, C, D	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily