ID A0A0A1H2F2_9BURK Unreviewed; 519 AA.
AC A0A0A1H2F2;
DT 04-FEB-2015, integrated into UniProtKB/TrEMBL.
DT 04-FEB-2015, sequence version 1.
DT 24-JAN-2024, entry version 32.
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=E1O_13720 {ECO:0000313|EMBL:BAP88503.1};
OS Burkholderiales bacterium GJ-E10.
OC Bacteria; Pseudomonadota; Betaproteobacteria; Burkholderiales.
OX NCBI_TaxID=1469502 {ECO:0000313|EMBL:BAP88503.1, ECO:0000313|Proteomes:UP000031649};
RN [1] {ECO:0000313|EMBL:BAP88503.1, ECO:0000313|Proteomes:UP000031649}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=GJ-E10 {ECO:0000313|EMBL:BAP88503.1,
RC ECO:0000313|Proteomes:UP000031649};
RA Fukushima J., Tojo F., Asano R., Kobayashi Y., Shimura Y., Okano K.,
RA Miyata N.;
RT "Complete Genome Sequence of the Unclassified Iron-Oxidizing,
RT Chemolithoautotrophic Burkholderiales bacterium GJ-E10 Isolated from Acid
RT River.";
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}.
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DR EMBL; AP014683; BAP88503.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A0A1H2F2; -.
DR STRING; 1469502.E1O_13720; -.
DR KEGG; bbag:E1O_13720; -.
DR HOGENOM; CLU_025876_2_0_4; -.
DR OrthoDB; 9800746at2; -.
DR Proteomes; UP000031649; 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 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:UP000031649}.
FT DOMAIN 1..56
FT /note="Nitrogenase molybdenum-iron protein beta chain N-
FT terminal"
FT /evidence="ECO:0000259|Pfam:PF11844"
FT DOMAIN 70..491
FT /note="Nitrogenase/oxidoreductase component 1"
FT /evidence="ECO:0000259|Pfam:PF00148"
SQ SEQUENCE 519 AA; 58026 MW; 3D777665C5445DDE CRC64;
MPQSAEEILD HEQLFRQPEY QELFQSKKAN FEFSVPVDQV KSIAEWTKTV EYKEKNFARD
SLTVNPAKAC QPLGAVFAAN GFSKTLSFVH GSQGCVAYYR SHFSRHFKEP TSCVSSSMTE
DAAVFGGLNN MIDGLANSYS LYKPEMIAVS TTCMAEVIGD DLNAFIKTAK EKGSVPAEFD
VPFAHTPAFV GSHVTGYDNT LLGILRHFWD GKADTAPKLE RKPNESINFI GGFDGFVVGN
IPEIRRIFGL MGVEHTIVCD PSDNWNTPTD GEFRMYDGGT TKADVESALH AKATVIFQEF
CSVKTAKFIA EHGQEVVALN HPMGVRGTDR FLMEVARITG KPIPAELERE RGRLVDAIAD
SQAHLHGKKY AVYGDPDFTL GMTEFLLELG AEPTHVLATN GDETWAAKVQ ALFDSSPFGT
HCKVYPKRDL WHMRSLLFTE PVDFLIGNTY GKYLERDTGV PLVRLAFPIF DRHHYHRMPI
WGYDGAMRVL VMLLDEHFEA LDARTNTPAE TDYSYDIIR
//