ID A0A1T1ATX3_RHOFE Unreviewed; 485 AA.
AC A0A1T1ATX3;
DT 10-MAY-2017, integrated into UniProtKB/TrEMBL.
DT 10-MAY-2017, 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 ORFNames=RF819_13190 {ECO:0000313|EMBL:OOV07559.1};
OS Rhodoferax fermentans.
OC Bacteria; Pseudomonadota; Betaproteobacteria; Burkholderiales;
OC Comamonadaceae; Rhodoferax.
OX NCBI_TaxID=28066 {ECO:0000313|EMBL:OOV07559.1, ECO:0000313|Proteomes:UP000190750};
RN [1] {ECO:0000313|EMBL:OOV07559.1, ECO:0000313|Proteomes:UP000190750}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=JCM 7819 {ECO:0000313|EMBL:OOV07559.1,
RC ECO:0000313|Proteomes:UP000190750};
RA Kim Y.J., Farh M.E.-A., Yang D.-C.;
RT "Genome sequencing of Rhodoferax fermentans JCM 7819.";
RL Submitted (JAN-2017) 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:OOV07559.1}.
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DR EMBL; MTJN01000002; OOV07559.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A1T1ATX3; -.
DR STRING; 28066.RF819_13190; -.
DR OrthoDB; 9762718at2; -.
DR Proteomes; UP000190750; 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:UP000190750}.
FT DOMAIN 63..471
FT /note="Nitrogenase/oxidoreductase component 1"
FT /evidence="ECO:0000259|Pfam:PF00148"
SQ SEQUENCE 485 AA; 54720 MW; 435F524928679D8B CRC64;
MTATVEERKA TNKALIEEVL KAYPEKMAKR RAKHLSTFEE GRPDCGVKSN IKSLPGVMTI
RGCAYAGSKG VVWGPIKDMV HISHGPVGCG QYSWANRRNY YIGTTGIDSF VTMQFTSDFQ
EKDIVFGGDK KLDKIIDEIQ VLFPLNKGIS IQSECPIGLI GDDIEAVSKK KSKEYEGKTI
VPVRCEGFRG VSQSLGHHLA NDAIRDWVFD RTDTGHTSQF VSTPYDVAII GDYNIGGDAW
SSRILLEEMG LRVISQWSGD GTIAEIENTP KAKLNVLHCY RSMNYISRHM EEKYGIPWVE
YNFFGPSKIE ASLREIASHF DDNIKAKAEE VIAKYKPLMQ AVIDKYKPRL QGKKVMLYVG
GLRPRHVIGA YEDLGMEIVG TGYEFAHNDD YQRTTHYVKD STLIYDDVTG YEFEHFVEGI
KPDLVGSGIK EKYVFQKMGV PFRQMHSWDY SGPYHGYDGF AIFARDMDMA ISSPVWGLTK
APWKK
//
