ID H5XZ30_9FIRM Unreviewed; 472 AA.
AC H5XZ30;
DT 18-APR-2012, integrated into UniProtKB/TrEMBL.
DT 18-APR-2012, sequence version 1.
DT 27-MAR-2024, entry version 42.
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 ORFNames=DesyoDRAFT_4792 {ECO:0000313|EMBL:EHQ91736.1};
OS Desulfosporosinus youngiae DSM 17734.
OC Bacteria; Bacillota; Clostridia; Eubacteriales; Desulfitobacteriaceae;
OC Desulfosporosinus.
OX NCBI_TaxID=768710 {ECO:0000313|EMBL:EHQ91736.1, ECO:0000313|Proteomes:UP000005104};
RN [1] {ECO:0000313|EMBL:EHQ91736.1, ECO:0000313|Proteomes:UP000005104}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 17734 {ECO:0000313|EMBL:EHQ91736.1,
RC ECO:0000313|Proteomes:UP000005104};
RG US DOE Joint Genome Institute (JGI-PGF);
RA Lucas S., Han J., Lapidus A., Cheng J.-F., Goodwin L., Pitluck S.,
RA Peters L., Ovchinnikova G., Lu M., Land M.L., Hauser L., Pester M.,
RA Spring S., Ollivier B., Rattei T., Klenk H.-P., Wagner M., Loy A.,
RA Woyke T.J.;
RT "The Noncontiguous Finished genome of Desulfosporosinus youngiae DSM
RT 17734.";
RL Submitted (NOV-2011) 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; CM001441; EHQ91736.1; -; Genomic_DNA.
DR AlphaFoldDB; H5XZ30; -.
DR STRING; 768710.DesyoDRAFT_4792; -.
DR eggNOG; COG2710; Bacteria.
DR HOGENOM; CLU_025876_2_0_9; -.
DR Proteomes; UP000005104; 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; cd01974; Nitrogenase_MoFe_beta; 1.
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 Reference proteome {ECO:0000313|Proteomes:UP000005104}.
FT DOMAIN 35..455
FT /note="Nitrogenase/oxidoreductase component 1"
FT /evidence="ECO:0000259|Pfam:PF00148"
SQ SEQUENCE 472 AA; 51882 MW; BE790EE1A82302C4 CRC64;
MEACTKVTKE WLNTQEYRVK NFAREKLVIN PAKACQPLGA LFCSLGIEGS LPFVHGSQGC
AAYFRSTLSR HYREPVAAVS DSMTEDSAVF GGQSNLIEGL KNANALYSPK VISMFTSCMA
EVIGDDIKAY LGNAKDQGAI PQELPVALAN TPSFKGSHIT GYDTMLKGLI DCLAEPRQED
KLNGRLYIVP GFDPYTANLR EYKRLLQVMD APYTLLPDQS EVLDAPNLGT YELYPGGTTI
TEMKDALNAP CFLCLQTYST PTTQKYLAAK EIPVKAISMP IGIGGTDKFI EAIAQFTGKE
VPGEITNERG RSIDAMTDAH QYIHGKKFAL FGDPDILMGL VSFLLEMGGE PVHILCTNST
PLFKKAMEGL LASSPYGQGG TLYAGKDLWH LRSLLVTEPV DMLIGDSHGK WAARDADIPH
VRVGFPITDR VNLHRYPIIG YSGVINLITM IVNTFLEEKD RTSTDTYFEM MR
//
