ID A0A1S8LCC9_9CLOT Unreviewed; 454 AA.
AC A0A1S8LCC9;
DT 10-MAY-2017, integrated into UniProtKB/TrEMBL.
DT 10-MAY-2017, sequence version 1.
DT 27-MAR-2024, entry version 26.
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 Name=nifK {ECO:0000313|EMBL:OOL89579.1};
GN ORFNames=CROST_005370 {ECO:0000313|EMBL:URZ09838.1}, CROST_12140
GN {ECO:0000313|EMBL:OOL89579.1};
OS Clostridium felsineum.
OC Bacteria; Bacillota; Clostridia; Eubacteriales; Clostridiaceae;
OC Clostridium.
OX NCBI_TaxID=36839 {ECO:0000313|EMBL:OOL89579.1};
RN [1] {ECO:0000313|EMBL:OOL89579.1}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 7320 {ECO:0000313|EMBL:OOL89579.1};
RA Poehlein A., Montoya Solano J.D., Flitsch S., Krabben P., Duerre P.,
RA Daniel R.;
RT "Microbial solvent formation.";
RL Submitted (MAY-2016) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|EMBL:URZ09838.1}
RP NUCLEOTIDE SEQUENCE.
RC STRAIN=DSM 7320 {ECO:0000313|EMBL:URZ09838.1};
RA Poehlein A., Schoch T., Duerre P., Daniel R.;
RT "Genome sequence of C. roseum typestrain.";
RL Submitted (APR-2022) 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; LZYV01000051; OOL89579.1; -; Genomic_DNA.
DR EMBL; CP096983; URZ09838.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A1S8LCC9; -.
DR STRING; 84029.CROST_12140; -.
DR KEGG; crw:CROST_005370; -.
DR Proteomes; UP000190951; 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:OOL89579.1}.
FT DOMAIN 23..437
FT /note="Nitrogenase/oxidoreductase component 1"
FT /evidence="ECO:0000259|Pfam:PF00148"
SQ SEQUENCE 454 AA; 50594 MW; C2BE4507E42342B6 CRC64;
MLDETPKEIY ERKALRINPA RTCQPIGAMY AALGIHNCLP HSHGSQGCCS YHRMQLTRHF
KDPIMASTSS FNEGASVFGG RANFNTAIKN IFSIYNPDIV AVHTTCLSET LGDDLVSYIA
DSEVPEGKIV IHANTPSYVG SHITGFSSMV KAMVTYLSEN TNRKNGKINI LPGFVGPADM
RELKKIFKLM KIPFIMLPDT SGVVDSPMTD EYKMYPKGGT TIEELKDAGN SNYTLALGSL
ASEAPAIELE KKCKVPFSVL NTPIGIDATD RFIMELSKIT GKEVPYEIEE ERGQLVDFML
DSYQYFHGKK VAIAGDPDTV IALTEFVISL GMNPKYVITG TQGEKFEKTI NKMLEKNGIE
GSRVKSYSDL FELHQWIKNE SVDLVIGNSH MKFIARAEDI PLVRFGFPIM DRYGHSYISK
VGYKGAMNLM TSMCDAILER MDRDSLDEDY ELVR
//
