ID I0IS19_LEPFC Unreviewed; 476 AA.
AC I0IS19;
DT 13-JUN-2012, integrated into UniProtKB/TrEMBL.
DT 13-JUN-2012, sequence version 1.
DT 27-MAR-2024, entry version 41.
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:BAM08068.1};
GN OrderedLocusNames=LFE_2397 {ECO:0000313|EMBL:BAM08068.1};
OS Leptospirillum ferrooxidans (strain C2-3).
OC Bacteria; Nitrospirota; Nitrospiria; Nitrospirales; Nitrospiraceae;
OC Leptospirillum.
OX NCBI_TaxID=1162668 {ECO:0000313|EMBL:BAM08068.1, ECO:0000313|Proteomes:UP000007382};
RN [1] {ECO:0000313|EMBL:BAM08068.1, ECO:0000313|Proteomes:UP000007382}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=C2-3 {ECO:0000313|EMBL:BAM08068.1,
RC ECO:0000313|Proteomes:UP000007382};
RX PubMed=22815442; DOI=10.1128/JB.00696-12;
RA Fujimura R., Sato Y., Nishizawa T., Oshima K., Kim S.-W., Hattori M.,
RA Kamijo T., Ohta H.;
RT "Complete Genome Sequence of Leptospirillum ferrooxidans Strain C2-3,
RT Isolated from a Fresh Volcanic Ash Deposit on the Island of Miyake,
RT Japan.";
RL J. Bacteriol. 194:4122-4123(2012).
RN [2] {ECO:0000313|Proteomes:UP000007382}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=C2-3 {ECO:0000313|Proteomes:UP000007382};
RA Fujimura R., Sato Y., Nishizawa T., Nanba K., Oshima K., Hattori M.,
RA Kamijo T., Ohta H.;
RT "The complete genome sequence of the pioneer microbe on fresh volcanic
RT deposit, Leptospirillum ferrooxidans strain C2-3.";
RL Submitted (MAR-2012) 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|RuleBase:RU004021}.
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DR EMBL; AP012342; BAM08068.1; -; Genomic_DNA.
DR RefSeq; WP_014450551.1; NC_017094.1.
DR AlphaFoldDB; I0IS19; -.
DR STRING; 1162668.LFE_2397; -.
DR GeneID; 78150043; -.
DR KEGG; lfc:LFE_2397; -.
DR PATRIC; fig|1162668.3.peg.2851; -.
DR eggNOG; COG2710; Bacteria.
DR HOGENOM; CLU_025876_1_1_0; -.
DR OrthoDB; 9762718at2; -.
DR Proteomes; UP000007382; Chromosome.
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:UP000007382}.
FT DOMAIN 59..464
FT /note="Nitrogenase/oxidoreductase component 1"
FT /evidence="ECO:0000259|Pfam:PF00148"
SQ SEQUENCE 476 AA; 53870 MW; 621CE22B3CDF11C0 CRC64;
MSNNIEEAKK IIEEVLSVYP EKTRKKREKH LNVFEEGKPD CGVKSNIKTV PGVMTIRGCA
YAGSKGVVWG PIKDMIHISH GPVGCGQYSW AARRNYYIGT TGVDSFVTMQ FTSDFQEKDI
VFGGDKKLEK IIDEIEVLFP LNNGITIQSE CPIGLIGDDI EAVSKKKSKE HNGKTIVPVR
CEGFRGVSQS LGHHIANDTI RDWVFDKKTG KPIETTPYDV AIIGDYNIGG DAWSSRILLE
EMGLRVVAQW SGDGSIEELI NTPKVKLNVL HCYRSMNYIS RHMEEKYGIP WVEYNFFGPS
KIAESLRKIA AFFDDTIKEN AEKVIAKYEA LTKATIEKYK PRLADKTVML FVGGLRPRHV
IGAYEDLGMN VIGTGYEFGH NDDYQRTTHY VKDGTIIYDD VTGYEFEKFV EALKPDLVAS
GIKEKYVFQK MGYPFRQMHS WDYSGPYHGY DGFTIFARDM DMAINNPVWQ MAKAPF
//
