Annotations: 1M1N

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1m1na_	Alpha and beta proteins (a/b)	Chelatase-like	'Helical backbone' metal receptor	Nitrogenase iron-molybdenum protein	Nitrogenase iron-molybdenum protein, alpha chain	(Azotobacter vinelandii ) [TaxId: 354 ],	SCOPe (2.08)
C	d1m1nc_	Alpha and beta proteins (a/b)	Chelatase-like	'Helical backbone' metal receptor	Nitrogenase iron-molybdenum protein	Nitrogenase iron-molybdenum protein, alpha chain	(Azotobacter vinelandii ) [TaxId: 354 ],	SCOPe (2.08)
E	d1m1ne_	Alpha and beta proteins (a/b)	Chelatase-like	'Helical backbone' metal receptor	Nitrogenase iron-molybdenum protein	Nitrogenase iron-molybdenum protein, alpha chain	(Azotobacter vinelandii ) [TaxId: 354 ],	SCOPe (2.08)
G	d1m1ng_	Alpha and beta proteins (a/b)	Chelatase-like	'Helical backbone' metal receptor	Nitrogenase iron-molybdenum protein	Nitrogenase iron-molybdenum protein, alpha chain	(Azotobacter vinelandii ) [TaxId: 354 ],	SCOPe (2.08)
B	d1m1nb_	Alpha and beta proteins (a/b)	Chelatase-like	'Helical backbone' metal receptor	Nitrogenase iron-molybdenum protein	Nitrogenase iron-molybdenum protein, beta chain	(Azotobacter vinelandii ) [TaxId: 354 ],	SCOPe (2.08)
D	d1m1nd_	Alpha and beta proteins (a/b)	Chelatase-like	'Helical backbone' metal receptor	Nitrogenase iron-molybdenum protein	Nitrogenase iron-molybdenum protein, beta chain	(Azotobacter vinelandii ) [TaxId: 354 ],	SCOPe (2.08)
F	d1m1nf_	Alpha and beta proteins (a/b)	Chelatase-like	'Helical backbone' metal receptor	Nitrogenase iron-molybdenum protein	Nitrogenase iron-molybdenum protein, beta chain	(Azotobacter vinelandii ) [TaxId: 354 ],	SCOPe (2.08)
H	d1m1nh_	Alpha and beta proteins (a/b)	Chelatase-like	'Helical backbone' metal receptor	Nitrogenase iron-molybdenum protein	Nitrogenase iron-molybdenum protein, beta chain	(Azotobacter vinelandii ) [TaxId: 354 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Nitrogenase iron-molybdenum protein	8030811	4000849	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Helical backbone metal receptor	8043190	3001679	SCOP2 (2022-06-29)
C	SCOP2B Superfamily	Helical backbone metal receptor	8043190	3001679	SCOP2B (2022-06-29)
E	SCOP2B Superfamily	Helical backbone metal receptor	8043190	3001679	SCOP2B (2022-06-29)
G	SCOP2B Superfamily	Helical backbone metal receptor	8043190	3001679	SCOP2B (2022-06-29)
B	SCOP2 Family	Nitrogenase iron-molybdenum protein	8030813	4000849	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	Helical backbone metal receptor	8043192	3001679	SCOP2 (2022-06-29)
D	SCOP2B Superfamily	Helical backbone metal receptor	8043192	3001679	SCOP2B (2022-06-29)
F	SCOP2B Superfamily	Helical backbone metal receptor	8043192	3001679	SCOP2B (2022-06-29)
H	SCOP2B Superfamily	Helical backbone metal receptor	8043192	3001679	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)
A	Oxidored_nitro_3rd	e1m1nA1	A: a/b three-layered sandwiches	X: Flavodoxin-like	H: Class I glutamine amidotransferase-like	T: Chelatase-like	F: Oxidored_nitro_3rd	ECOD (1.6)
C	Oxidored_nitro_3rd	e1m1nC1	A: a/b three-layered sandwiches	X: Flavodoxin-like	H: Class I glutamine amidotransferase-like	T: Chelatase-like	F: Oxidored_nitro_3rd	ECOD (1.6)
E	Oxidored_nitro_3rd	e1m1nE1	A: a/b three-layered sandwiches	X: Flavodoxin-like	H: Class I glutamine amidotransferase-like	T: Chelatase-like	F: Oxidored_nitro_3rd	ECOD (1.6)
G	Oxidored_nitro_3rd	e1m1nG1	A: a/b three-layered sandwiches	X: Flavodoxin-like	H: Class I glutamine amidotransferase-like	T: Chelatase-like	F: Oxidored_nitro_3rd	ECOD (1.6)
B	Oxidored_nitro_3rd	e1m1nB3	A: a/b three-layered sandwiches	X: Flavodoxin-like	H: Class I glutamine amidotransferase-like	T: Chelatase-like	F: Oxidored_nitro_3rd	ECOD (1.6)
B	Oxidored_nitro_1st	e1m1nB1	A: a/b three-layered sandwiches	X: Flavodoxin-like	H: Class I glutamine amidotransferase-like	T: Chelatase-like	F: Oxidored_nitro_1st	ECOD (1.6)
B	UNK_F_TYPE	e1m1nB2	A: a/b three-layered sandwiches	X: Flavodoxin-like	H: Class I glutamine amidotransferase-like	T: Chelatase-like	F: UNK_F_TYPE	ECOD (1.6)
D	Oxidored_nitro_3rd	e1m1nD3	A: a/b three-layered sandwiches	X: Flavodoxin-like	H: Class I glutamine amidotransferase-like	T: Chelatase-like	F: Oxidored_nitro_3rd	ECOD (1.6)
D	Oxidored_nitro_1st	e1m1nD1	A: a/b three-layered sandwiches	X: Flavodoxin-like	H: Class I glutamine amidotransferase-like	T: Chelatase-like	F: Oxidored_nitro_1st	ECOD (1.6)
D	UNK_F_TYPE	e1m1nD2	A: a/b three-layered sandwiches	X: Flavodoxin-like	H: Class I glutamine amidotransferase-like	T: Chelatase-like	F: UNK_F_TYPE	ECOD (1.6)
F	Oxidored_nitro_3rd	e1m1nF3	A: a/b three-layered sandwiches	X: Flavodoxin-like	H: Class I glutamine amidotransferase-like	T: Chelatase-like	F: Oxidored_nitro_3rd	ECOD (1.6)
F	Oxidored_nitro_1st	e1m1nF2	A: a/b three-layered sandwiches	X: Flavodoxin-like	H: Class I glutamine amidotransferase-like	T: Chelatase-like	F: Oxidored_nitro_1st	ECOD (1.6)
F	UNK_F_TYPE	e1m1nF1	A: a/b three-layered sandwiches	X: Flavodoxin-like	H: Class I glutamine amidotransferase-like	T: Chelatase-like	F: UNK_F_TYPE	ECOD (1.6)
H	Oxidored_nitro_3rd	e1m1nH3	A: a/b three-layered sandwiches	X: Flavodoxin-like	H: Class I glutamine amidotransferase-like	T: Chelatase-like	F: Oxidored_nitro_3rd	ECOD (1.6)
H	Oxidored_nitro_1st	e1m1nH1	A: a/b three-layered sandwiches	X: Flavodoxin-like	H: Class I glutamine amidotransferase-like	T: Chelatase-like	F: Oxidored_nitro_1st	ECOD (1.6)
H	UNK_F_TYPE	e1m1nH2	A: a/b three-layered sandwiches	X: Flavodoxin-like	H: Class I glutamine amidotransferase-like	T: Chelatase-like	F: UNK_F_TYPE	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.50.1980	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Nitrogenase molybdenum iron protein domain	CATH (4.3.0)
C	3.40.50.1980	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Nitrogenase molybdenum iron protein domain	CATH (4.3.0)
E	3.40.50.1980	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Nitrogenase molybdenum iron protein domain	CATH (4.3.0)
G	3.40.50.1980	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Nitrogenase molybdenum iron protein domain	CATH (4.3.0)
B	3.40.50.1980	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Nitrogenase molybdenum iron protein domain	CATH (4.3.0)
B	1.20.89.10	Mainly Alpha	Up-down Bundle	Nitrogenase Molybdenum-iron Protein, subunit B	domain 4	CATH (4.3.0)
D	3.40.50.1980	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Nitrogenase molybdenum iron protein domain	CATH (4.3.0)
D	1.20.89.10	Mainly Alpha	Up-down Bundle	Nitrogenase Molybdenum-iron Protein, subunit B	domain 4	CATH (4.3.0)
F	3.40.50.1980	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Nitrogenase molybdenum iron protein domain	CATH (4.3.0)
F	1.20.89.10	Mainly Alpha	Up-down Bundle	Nitrogenase Molybdenum-iron Protein, subunit B	domain 4	CATH (4.3.0)
H	3.40.50.1980	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Nitrogenase molybdenum iron protein domain	CATH (4.3.0)
H	1.20.89.10	Mainly Alpha	Up-down Bundle	Nitrogenase Molybdenum-iron Protein, subunit B	domain 4	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, C, E, G	PF00148	Nitrogenase component 1 type Oxidoreductase (Oxidored_nitro)	Nitrogenase component 1 type Oxidoreductase	-	Domain
B, D, F, H	PF11844	Domain of unknown function (DUF3364) (DUF3364)	Domain of unknown function (DUF3364)	-	Family
B, D, F, H	PF00148	Nitrogenase component 1 type Oxidoreductase (Oxidored_nitro)	Nitrogenase component 1 type Oxidoreductase	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, C, E, G	Nitrogenase molybdenum-iron protein alpha chain	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 iron-sulfur cluster binding metal cluster 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 cation binding metal ion binding nitrogenase activity	nitrogen cycle metabolic process metabolic process nitrogen fixation	protein-containing complex molybdenum-iron nitrogenase complex catalytic complex nitrogenase complex oxidoreductase complex intracellular protein-containing complex
B, D, F, H	Nitrogenase molybdenum-iron protein beta chain	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 iron-sulfur cluster binding metal cluster 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 cation binding metal ion binding nitrogenase activity	nitrogen cycle metabolic process metabolic process nitrogen fixation	protein-containing complex molybdenum-iron nitrogenase complex catalytic complex nitrogenase complex oxidoreductase complex intracellular protein-containing complex

InterPro: Protein Family Classification InterPro Database Homepage

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

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.