ID A0A2N3PND8_9PROT Unreviewed; 479 AA.
AC A0A2N3PND8;
DT 25-APR-2018, integrated into UniProtKB/TrEMBL.
DT 25-APR-2018, sequence version 1.
DT 27-MAR-2024, entry version 14.
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:PKU21907.1};
GN ORFNames=CWS72_24270 {ECO:0000313|EMBL:PKU21907.1};
OS Telmatospirillum siberiense.
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Rhodospirillales;
OC Rhodospirillaceae; Telmatospirillum.
OX NCBI_TaxID=382514 {ECO:0000313|EMBL:PKU21907.1, ECO:0000313|Proteomes:UP000233293};
RN [1] {ECO:0000313|Proteomes:UP000233293}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=26-4b1 {ECO:0000313|Proteomes:UP000233293};
RA Hausmann B., Pjevac P., Schreck K., Herbold C.W., Daims H., Wagner M.,
RA Pester M., Loy A.;
RT "Draft genome sequence of Telmatospirillum siberiense 26-4b1T, an
RT acidotolerant peatland alphaproteobacterium potentially involved in sulfur
RT cycling.";
RL Submitted (DEC-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:PKU21907.1}.
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DR EMBL; PIUM01000041; PKU21907.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A2N3PND8; -.
DR OrthoDB; 9762718at2; -.
DR Proteomes; UP000233293; 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:UP000233293}.
FT DOMAIN 60..462
FT /note="Nitrogenase/oxidoreductase component 1"
FT /evidence="ECO:0000259|Pfam:PF00148"
SQ SEQUENCE 479 AA; 53452 MW; 2AB143D1D80FA8B0 CRC64;
MTVDVKAERK ALIEEVLKEY PEKTAKKRAK HLNVYEEGKP DCGVKSNVKS IPGVMTVRGC
AYAGAKGVVW GPVKDMVHVS HGPVGCGHYS WSQRRNYSTG ITGVNSWVTM QVTSDFQEKD
IVFGGDKKLD KLINEIETLF PLNNGVSVMS ECPIGLIGDD IEAVAKKKAK EIGKVVAPVR
CEGFRGVSQS LGHHIANDVM RDYVVDKAAD KPFEGTPYDV VIVGDYNIGG DAWASRILLE
EMGLRVIAQW SGDASVAEME RGSKAKLNLI HCYRSMNYIC RHMEEKYGIP WMEYNFFGPS
QIAKSLRAIA EQFDDKIKDG AERVIAKYQP MADAILAKYK PRLEGKRIML YVGGLRPRHV
ADAYGDLGME VIGTGYEFAH GDDYQRTTKY VKDGTLIYDD VSEFELEKFI ERLQPDLVGS
GIKEKYGTQK MGVPFRQLHS WDYSGPYHGY DGFAIFARDM DLAVNSPVWG LTKAPWKAA
//
