ID D6Z090_DESAT Unreviewed; 457 AA.
AC D6Z090;
DT 10-AUG-2010, integrated into UniProtKB/TrEMBL.
DT 10-AUG-2010, sequence version 1.
DT 27-MAR-2024, entry version 62.
DE RecName: Full=Nitrogenase molybdenum-iron protein beta chain {ECO:0000256|ARBA:ARBA00014775, ECO:0000256|RuleBase:RU364127};
DE EC=1.18.6.1 {ECO:0000256|ARBA:ARBA00012773, ECO:0000256|RuleBase:RU364127};
DE AltName: Full=Dinitrogenase {ECO:0000256|RuleBase:RU364127};
GN OrderedLocusNames=DaAHT2_2459 {ECO:0000313|EMBL:ADH87123.1};
OS Desulfurivibrio alkaliphilus (strain DSM 19089 / UNIQEM U267 / AHT2).
OC Bacteria; Thermodesulfobacteriota; Desulfobulbia; Desulfobulbales;
OC Desulfobulbaceae; Desulfurivibrio.
OX NCBI_TaxID=589865 {ECO:0000313|EMBL:ADH87123.1, ECO:0000313|Proteomes:UP000001508};
RN [1] {ECO:0000313|Proteomes:UP000001508}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 19089 / UNIQEM U267 / AHT2
RC {ECO:0000313|Proteomes:UP000001508};
RG US DOE Joint Genome Institute;
RA Pitluck S., Chertkov O., Detter J.C., Han C., Tapia R., Larimer F.,
RA Land M., Hauser L., Kyrpides N., Mikhailova N., Sorokin D.Y., Muyzer G.,
RA Woyke T.;
RT "Complete sequence of Desulfurivibrio alkaliphilus AHT2.";
RL Submitted (FEB-2010) 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 ECO:0000256|RuleBase:RU364127}.
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:RU364127};
CC -!- COFACTOR:
CC Name=[8Fe-7S] cluster; Xref=ChEBI:CHEBI:21143;
CC Evidence={ECO:0000256|RuleBase:RU364127};
CC Note=Binds 1 [8Fe-7S] cluster per heterodimer.
CC {ECO:0000256|RuleBase:RU364127};
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, ECO:0000256|RuleBase:RU364127}.
CC -!- SIMILARITY: Belongs to the NifD/NifK/NifE/NifN family.
CC {ECO:0000256|ARBA:ARBA00011002, ECO:0000256|RuleBase:RU004021}.
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DR EMBL; CP001940; ADH87123.1; -; Genomic_DNA.
DR RefSeq; WP_013164635.1; NC_014216.1.
DR AlphaFoldDB; D6Z090; -.
DR STRING; 589865.DaAHT2_2459; -.
DR KEGG; dak:DaAHT2_2459; -.
DR eggNOG; COG2710; Bacteria.
DR HOGENOM; CLU_025876_2_0_7; -.
DR InParanoid; D6Z090; -.
DR OrthoDB; 9800746at2; -.
DR Proteomes; UP000001508; 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 Gene3D; 3.40.50.1980; Nitrogenase molybdenum iron protein domain; 3.
DR Gene3D; 1.20.89.10; Nitrogenase Molybdenum-iron Protein, subunit B, domain 4; 1.
DR InterPro; IPR000510; Nase/OxRdtase_comp1.
DR InterPro; IPR000318; Nase_comp1_CS.
DR InterPro; IPR005976; Nase_Mo-Fe_CF_bsu.
DR NCBIfam; TIGR01286; nifK; 1.
DR PANTHER; PTHR33712; LIGHT-INDEPENDENT PROTOCHLOROPHYLLIDE REDUCTASE SUBUNIT B; 1.
DR PANTHER; PTHR33712:SF7; LIGHT-INDEPENDENT PROTOCHLOROPHYLLIDE REDUCTASE SUBUNIT B; 1.
DR Pfam; PF00148; Oxidored_nitro; 1.
DR SUPFAM; SSF53807; Helical backbone' metal receptor; 1.
DR PROSITE; PS00699; NITROGENASE_1_1; 1.
PE 3: Inferred from homology;
KW ATP-binding {ECO:0000256|RuleBase:RU364127};
KW Iron {ECO:0000256|RuleBase:RU364127};
KW Iron-sulfur {ECO:0000256|RuleBase:RU364127};
KW Metal-binding {ECO:0000256|RuleBase:RU364127};
KW Nitrogen fixation {ECO:0000256|ARBA:ARBA00023231,
KW ECO:0000256|RuleBase:RU004021};
KW Nucleotide-binding {ECO:0000256|RuleBase:RU364127};
KW Oxidoreductase {ECO:0000256|RuleBase:RU364127,
KW ECO:0000313|EMBL:ADH87123.1};
KW Reference proteome {ECO:0000313|Proteomes:UP000001508}.
FT DOMAIN 24..440
FT /note="Nitrogenase/oxidoreductase component 1"
FT /evidence="ECO:0000259|Pfam:PF00148"
SQ SEQUENCE 457 AA; 49766 MW; 616EC6EEEEC395BF CRC64;
MLLRHTPAEI TERKALAINP AKTCQPIGAM YAALGIHGCL PHSHGSQGCC AYHRSTLTRH
YKEPVSASTS SFTEGASVFG GSANMLQAIS NIFSVYNPEI IAVHTTCLSE TIGDDLPQIK
KKAQMEGKIP AGKHVISAST PSYAGSHVTG FSSMVTAMAG MAESTGKKNG KVNIIPGWVE
PADMEEIKRL AGLMGVKSIV FPDTSGVLNG PLSGEYKMFP EGGTTVAELK ATGDAVGTLA
LGDWCSGDAA RYLDKEHKVP CKILDMPYGL AATDRFIDAL RTMAGITVPD EVALERGQLV
DLISDMHQYL YQKKVAIFGD PDQLIAMTEF LVSLDMQPIH IVTGTPGKKF EKRIKELTAG
LGRPVNVKAK GDMFLLHQWI KQEPVDLLIG NTYGKYIARD EDLPFVRWGF PILDRQGHQY
FPTVGYKGGL RLLEKILGEL MDRKDRDDPE SKFELVL
//
