ID A0A0D7EI00_RHOPL Unreviewed; 518 AA.
AC A0A0D7EI00;
DT 27-MAY-2015, integrated into UniProtKB/TrEMBL.
DT 27-MAY-2015, sequence version 1.
DT 24-JAN-2024, entry version 21.
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=OO17_21330 {ECO:0000313|EMBL:KIZ39147.1};
OS Rhodopseudomonas palustris.
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Hyphomicrobiales;
OC Nitrobacteraceae; Rhodopseudomonas.
OX NCBI_TaxID=1076 {ECO:0000313|EMBL:KIZ39147.1, ECO:0000313|Proteomes:UP000032515};
RN [1] {ECO:0000313|EMBL:KIZ39147.1, ECO:0000313|Proteomes:UP000032515}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=BAL398 {ECO:0000313|EMBL:KIZ39147.1,
RC ECO:0000313|Proteomes:UP000032515};
RA Bentzon-Tilia M., Severin I., Hansen L.H., Riemann L.;
RT "Genomics and ecophysiology of heterotrophic nitrogen fixing bacteria
RT isolated from estuarine surface water.";
RL Submitted (NOV-2014) 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:KIZ39147.1}.
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DR EMBL; JXXE01000460; KIZ39147.1; -; Genomic_DNA.
DR RefSeq; WP_044415346.1; NZ_JXXE01000460.1.
DR AlphaFoldDB; A0A0D7EI00; -.
DR STRING; 1421013.GCA_000504425_02302; -.
DR PATRIC; fig|1076.23.peg.4983; -.
DR OrthoDB; 9800746at2; -.
DR Proteomes; UP000032515; 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: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:InterPro.
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}.
FT DOMAIN 1..56
FT /note="Nitrogenase molybdenum-iron protein beta chain N-
FT terminal"
FT /evidence="ECO:0000259|Pfam:PF11844"
FT DOMAIN 70..496
FT /note="Nitrogenase/oxidoreductase component 1"
FT /evidence="ECO:0000259|Pfam:PF00148"
SQ SEQUENCE 518 AA; 57520 MW; 7D3CF696EAAABF83 CRC64;
MSQNAEKILD HQELFREPEY AKMIENKRAL FENRVPAEEL DRVIDWTKTA EYREKNFARE
ALTINPNKAC QPLGAVFAAV GFEKTLPFVH GSQGCVAYYR SHFSRHFKEP TSCVSSSMTE
DAAVFGGLNN MIDGLANAHA LYKPKMIAVS TTCMAEVIGD DLNAFIKGAK EKGSVPADFD
VTFAHTPAFV GSHTTGYDNV MKGIVEHFWD GKAGTVPKLE RQENGSINFI GGFDGYTVGN
IREIKRIFDL MGVDYTIFGD NSDVWDTPAD GEFRMYDGGT TLEQAANAIH AKATISMQEF
CTEKTLATIA AHGQEVKAFN HPVGIAGTDA FLQEVSRLTG KPIPEALTKE RGRLVDAIGD
SSAHIHGKKF AIYGDPDTCL GLASFILELG GEPTHILATN GNKVWAEKVE QLLASSPFGK
NCHVYPGKDL WHLRSLLFTE PVDFMIGNTY GKYLERDTNT PLIRIGFPLF DRHHHHRYPV
WGYQGSLNVL VWILDKIFDE LDKDIVAGKN DISFDIIR
//
