ID A0A1E5Q664_9PROT Unreviewed; 523 AA.
AC A0A1E5Q664;
DT 18-JAN-2017, integrated into UniProtKB/TrEMBL.
DT 18-JAN-2017, sequence version 1.
DT 27-MAR-2024, entry version 29.
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=BEN30_12690 {ECO:0000313|EMBL:OEJ66240.1};
OS Magnetovibrio blakemorei.
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Rhodospirillales;
OC Magnetovibrionaceae; Magnetovibrio.
OX NCBI_TaxID=28181 {ECO:0000313|EMBL:OEJ66240.1, ECO:0000313|Proteomes:UP000095347};
RN [1] {ECO:0000313|Proteomes:UP000095347}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=MV-1 {ECO:0000313|Proteomes:UP000095347};
RA Florea S., Webb J.S., Jaromczyk J., Schardl C.L.;
RL Submitted (JUL-2016) 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}.
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:OEJ66240.1}.
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DR EMBL; MCGG01000036; OEJ66240.1; -; Genomic_DNA.
DR RefSeq; WP_069958445.1; NZ_MCGG01000036.1.
DR AlphaFoldDB; A0A1E5Q664; -.
DR STRING; 28181.BEN30_12690; -.
DR OrthoDB; 9800746at2; -.
DR Proteomes; UP000095347; 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 Reference proteome {ECO:0000313|Proteomes:UP000095347}.
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; 59083 MW; E79D40D7983777F6 CRC64;
MSQVVEDIKP SYPLFRDQDY KDSLQNKQDM FEERHGEAKV DEMFEWSTTQ EYQELNFARE
ALTINPAKAC QPLGSVLCSL GFAKTLPYVH GSQGCVAYFR TYFNRHFKEP IACVSDSMTE
DAAVFGGQKN MYDGLENAKA LYKPEMIAVS TTCMAEVIGD DLNAFIGNAK KAGHVPDEFP
TPFAHTPSFV GSHTTGWDNM FEGIMRYFTL NHMDDKKVGS NGKINLVPGF ETYLGNYRVM
KRMMAEMGVD ATLLCDPSEV LDTPADGQYR MYDGGTTQDE VKDAPNAIDT LLLQPWQLVK
TKKYVRDVWN QPGTDIDIPM GLKGTDGFLM KVAELTGKAI PASLEKERGR LVDMMTDSHT
WLHGKKFGLY GDADYVMGMT AFLLELGAEP THILCNHANK RWKKAMEAIL AASPYGANCE
VHVGKDLWHF RSLMFTNKPD FMIGNSYGKF IQRDTLHKGK EFEVPLIRIG FPIFDRHHLH
RMTTMGYEGA MYILTTLVNA VLERLDEETR GMGTTDYNYD LVR
//
