ID F9U834_9GAMM Unreviewed; 523 AA.
AC F9U834;
DT 19-OCT-2011, integrated into UniProtKB/TrEMBL.
DT 19-OCT-2011, sequence version 1.
DT 24-JAN-2024, entry version 37.
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=ThimaDRAFT_1260 {ECO:0000313|EMBL:EGV19814.1};
OS Thiocapsa marina 5811.
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Chromatiales; Chromatiaceae;
OC Thiocapsa.
OX NCBI_TaxID=768671 {ECO:0000313|EMBL:EGV19814.1, ECO:0000313|Proteomes:UP000005459};
RN [1] {ECO:0000313|EMBL:EGV19814.1, ECO:0000313|Proteomes:UP000005459}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=5811 {ECO:0000313|EMBL:EGV19814.1,
RC ECO:0000313|Proteomes:UP000005459};
RG US DOE Joint Genome Institute (JGI-PGF);
RA Lucas S., Han J., Cheng J.-F., Goodwin L., Pitluck S., Peters L.,
RA Land M.L., Hauser L., Vogl K., Liu Z., Imhoff J., Thiel V., Frigaard N.-U.,
RA Bryant D., Woyke T.J.;
RT "The draft genome of Thiocapsa marina 5811.";
RL Submitted (JUN-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; AFWV01000003; EGV19814.1; -; Genomic_DNA.
DR RefSeq; WP_007192137.1; NZ_AFWV01000003.1.
DR AlphaFoldDB; F9U834; -.
DR STRING; 768671.ThimaDRAFT_1260; -.
DR PATRIC; fig|768671.3.peg.1348; -.
DR eggNOG; COG2710; Bacteria.
DR OrthoDB; 9800746at2; -.
DR Proteomes; UP000005459; 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; 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 InterPro; IPR024564; Nase_Mo-Fe_CF_bsu_N.
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; PF11844; DUF3364; 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|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:EGV19814.1};
KW Reference proteome {ECO:0000313|Proteomes:UP000005459}.
FT DOMAIN 1..56
FT /note="Nitrogenase molybdenum-iron protein beta chain N-
FT terminal"
FT /evidence="ECO:0000259|Pfam:PF11844"
FT DOMAIN 70..501
FT /note="Nitrogenase/oxidoreductase component 1"
FT /evidence="ECO:0000259|Pfam:PF00148"
SQ SEQUENCE 523 AA; 59222 MW; 3C8C35B2FC0C25F4 CRC64;
MSQTIDQIKP SYPLFRDADY VDNLAKKQGG VEERHSDEKI DEVFQWTTTK EYQELNFKRE
ALTVNPAKAC QPLGAVLCAL GFEKTLPYVH GSQGCVAYFR TYFNRHFKEP IACVSDSMTE
DAAVFGGQKN MMDGLENARA LYKPEMIAVS TTCMAEVIGD DLNAFIGNAK KEGYVPEEFP
TPFAHTPSFV GSHTTGWDNM FEGILRYFTL NSMDGKVVGS NGKINLVPGF ETYLGNYRVM
HRMMKEMGVD YSLLCDPTEV LDTPADGEYR MYDGGTSLDE VKDAPNAIDT LLLQPWQLPK
TKKYVQINMQ QPATAIHIPM GLEWTDEFLM KVSELTGKAI PESLAKERGR LVDMMTDSHT
WLHGKKFALY GDADYVLGMV KFLLELGAEP THILCNHANK RWKKEVEGVL AASPYGKEGK
VYTGADLWHF RSLCFTDKPD FMIGNSYGKF IQRDTLHKGK EHEVPLIRIG FPIFDRHHLH
RMTTLGYEGA MYILTTLVNA VLERLDDETR EMGVTDYNYD LVR
//
