ID A0A2T4JGH3_9RHOB Unreviewed; 492 AA.
AC A0A2T4JGH3;
DT 18-JUL-2018, integrated into UniProtKB/TrEMBL.
DT 18-JUL-2018, sequence version 1.
DT 27-MAR-2024, entry version 19.
DE RecName: Full=Nitrogenase protein alpha chain {ECO:0000256|RuleBase:RU004022};
DE EC=1.18.6.1 {ECO:0000256|RuleBase:RU004022};
GN Name=nifD {ECO:0000313|EMBL:PTE16996.1};
GN ORFNames=C5F46_11305 {ECO:0000313|EMBL:PTE16996.1};
OS Phaeovulum veldkampii DSM 11550.
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Rhodobacterales;
OC Paracoccaceae; Phaeovulum.
OX NCBI_TaxID=1185920 {ECO:0000313|EMBL:PTE16996.1, ECO:0000313|Proteomes:UP000241899};
RN [1] {ECO:0000313|EMBL:PTE16996.1, ECO:0000313|Proteomes:UP000241899}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 11550 {ECO:0000313|EMBL:PTE16996.1,
RC ECO:0000313|Proteomes:UP000241899};
RA Meyer T.E., Miller S., Lodha T., Gandham S., Chintalapati S.,
RA Chintalapati V.R.;
RT "Rhodobacter veldkampii.";
RL Submitted (MAR-2018) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: This molybdenum-iron protein is part of the nitrogenase
CC complex that catalyzes the key enzymatic reactions in nitrogen
CC fixation. {ECO:0000256|ARBA:ARBA00002621}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=16 ATP + 16 H2O + N2 + 8 reduced [2Fe-2S]-[ferredoxin] = 16
CC ADP + 6 H(+) + H2 + 2 NH4(+) + 8 oxidized [2Fe-2S]-[ferredoxin] + 16
CC phosphate; Xref=Rhea:RHEA:21448, Rhea:RHEA-COMP:10000, Rhea:RHEA-
CC COMP:10001, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:17997,
CC ChEBI:CHEBI:18276, ChEBI:CHEBI:28938, ChEBI:CHEBI:30616,
CC ChEBI:CHEBI:33737, ChEBI:CHEBI:33738, ChEBI:CHEBI:43474,
CC ChEBI:CHEBI:456216; EC=1.18.6.1;
CC Evidence={ECO:0000256|ARBA:ARBA00000805,
CC ECO:0000256|RuleBase:RU004022};
CC -!- COFACTOR:
CC Name=[7Fe-Mo-9S-C-homocitryl] cluster; Xref=ChEBI:CHEBI:30409;
CC Evidence={ECO:0000256|ARBA:ARBA00001969};
CC -!- COFACTOR:
CC Name=[8Fe-7S] cluster; Xref=ChEBI:CHEBI:21143;
CC Evidence={ECO:0000256|ARBA:ARBA00001919};
CC -!- SUBUNIT: Tetramer of two alpha and two beta chains. Forms complex with
CC the iron protein (nitrogenase component 2).
CC {ECO:0000256|ARBA:ARBA00011462}.
CC -!- SIMILARITY: Belongs to the NifD/NifK/NifE/NifN family.
CC {ECO:0000256|ARBA:ARBA00011002, ECO:0000256|RuleBase:RU004021}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:PTE16996.1}.
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DR EMBL; PZKF01000026; PTE16996.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A2T4JGH3; -.
DR SMR; A0A2T4JGH3; -.
DR OrthoDB; 9762718at2; -.
DR Proteomes; UP000241899; Unassembled WGS sequence.
DR GO; GO:0016612; C:molybdenum-iron nitrogenase complex; IEA:InterPro.
DR GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
DR GO; GO:0018697; F:carbonyl sulfide nitrogenase activity; IEA:UniProtKB-EC.
DR GO; GO:0051536; F:iron-sulfur cluster binding; IEA:UniProtKB-KW.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0016163; F:nitrogenase activity; IEA:UniProtKB-EC.
DR GO; GO:0009399; P:nitrogen fixation; IEA:UniProtKB-KW.
DR CDD; cd01976; Nitrogenase_MoFe_alpha; 1.
DR Gene3D; 3.40.50.1980; Nitrogenase molybdenum iron protein domain; 3.
DR InterPro; IPR000510; Nase/OxRdtase_comp1.
DR InterPro; IPR010143; Nase_comp1_asu.
DR InterPro; IPR000318; Nase_comp1_CS.
DR InterPro; IPR005972; Nase_Mo-Fe_asu.
DR NCBIfam; TIGR01862; N2-ase-Ialpha; 1.
DR NCBIfam; TIGR01282; nifD; 1.
DR PANTHER; PTHR43457; NITROGENASE MOLYBDENUM-IRON PROTEIN ALPHA CHAIN; 1.
DR PANTHER; PTHR43457:SF1; NITROGENASE MOLYBDENUM-IRON PROTEIN ALPHA CHAIN; 1.
DR Pfam; PF00148; Oxidored_nitro; 1.
DR SUPFAM; SSF53807; Helical backbone' metal receptor; 1.
DR PROSITE; PS00699; NITROGENASE_1_1; 1.
DR PROSITE; PS00090; NITROGENASE_1_2; 1.
PE 3: Inferred from homology;
KW ATP-binding {ECO:0000256|ARBA:ARBA00022840};
KW Iron {ECO:0000256|ARBA:ARBA00023004, ECO:0000256|RuleBase:RU004022};
KW Iron-sulfur {ECO:0000256|ARBA:ARBA00023014};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723,
KW ECO:0000256|RuleBase:RU004022}; Molybdenum {ECO:0000256|ARBA:ARBA00022505};
KW Nitrogen fixation {ECO:0000256|ARBA:ARBA00023231,
KW ECO:0000256|RuleBase:RU004021};
KW Nucleotide-binding {ECO:0000256|ARBA:ARBA00022741};
KW Oxidoreductase {ECO:0000256|ARBA:ARBA00023002,
KW ECO:0000256|RuleBase:RU004022};
KW Reference proteome {ECO:0000313|Proteomes:UP000241899}.
FT DOMAIN 70..475
FT /note="Nitrogenase/oxidoreductase component 1"
FT /evidence="ECO:0000259|Pfam:PF00148"
SQ SEQUENCE 492 AA; 54586 MW; 0F2F73B00A15F1B2 CRC64;
MAKDIPDPIT PEKLIEDVLS AYPAKSAKKR AKHLGVAEAA PEGETGIVSK CDTVKSNIKS
VPGVMTIRGC AYAGSKGVVW GPIKDMVHIS HGPVGCGHYS WSQRRNYYTG TTGVDSFVTF
QFTTDFQEKD IVFGGDKKLE KTIDEINELF PLVKGITIQS ECPIGLIGDD IEAVAKKKKA
DIGKTIVPVR CEGFRGVSQS LGHHIANDML RDWVIDPAQE AGVDYEGGAY DVNIIGDYNI
GGDAWSSRIL LEEIGLNVIG CWSGDATLAE IERAPKARLN LIHCYRSMTY ICRHMEEKYG
LAWMEYNFFG PSQIAASLRA IASKFDQTIQ DKAEAVIAKY QPLVDAVKAK YMPRLEGKRV
MLYVGGLRPR HVVTAYHDLG MEIVGTGYEF AHGDDYKRTG EYVKEGTLIY DDVSGYELEK
FIETLRPDLV GSGIKEKYAT QKMGIPFRQM HSWDYSGPYH GYDGFAIFAR DMDLAINNPV
WGLFDAPWKK SA
//
