ID   ETFB_BRADU              Reviewed;         249 AA.
AC   P53575;
DT   01-OCT-1996, integrated into UniProtKB/Swiss-Prot.
DT   28-FEB-2003, sequence version 2.
DT   25-MAY-2022, entry version 117.
DE   RecName: Full=Electron transfer flavoprotein subunit beta;
DE            Short=Beta-ETF;
DE   AltName: Full=Electron transfer flavoprotein small subunit;
DE            Short=ETFSS;
GN   Name=etfB; Synonyms=etfS; OrderedLocusNames=blr1377;
OS   Bradyrhizobium diazoefficiens (strain JCM 10833 / BCRC 13528 / IAM 13628 /
OS   NBRC 14792 / USDA 110).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Hyphomicrobiales;
OC   Bradyrhizobiaceae; Bradyrhizobium.
OX   NCBI_TaxID=224911;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   STRAIN=USDA 3I1b110;
RX   PubMed=8599534; DOI=10.1007/bf01692858;
RA   Weidenhaupt M., Rossi P., Beck C., Fischer H.-M., Hennecke H.;
RT   "Bradyrhizobium japonicum possesses two discrete sets of electron transfer
RT   flavoprotein genes: fixA, fixB and etfS, etfL.";
RL   Arch. Microbiol. 165:169-178(1996).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=JCM 10833 / BCRC 13528 / IAM 13628 / NBRC 14792 / USDA 110;
RX   PubMed=12597275; DOI=10.1093/dnares/9.6.189;
RA   Kaneko T., Nakamura Y., Sato S., Minamisawa K., Uchiumi T., Sasamoto S.,
RA   Watanabe A., Idesawa K., Iriguchi M., Kawashima K., Kohara M.,
RA   Matsumoto M., Shimpo S., Tsuruoka H., Wada T., Yamada M., Tabata S.;
RT   "Complete genomic sequence of nitrogen-fixing symbiotic bacterium
RT   Bradyrhizobium japonicum USDA110.";
RL   DNA Res. 9:189-197(2002).
CC   -!- FUNCTION: The electron transfer flavoprotein serves as a specific
CC       electron acceptor for other dehydrogenases. It transfers the electrons
CC       to the main respiratory chain via ETF-ubiquinone oxidoreductase (ETF
CC       dehydrogenase) (By similarity). {ECO:0000250}.
CC   -!- COFACTOR:
CC       Name=FAD; Xref=ChEBI:CHEBI:57692; Evidence={ECO:0000250};
CC       Note=Binds 1 FAD per dimer. {ECO:0000250};
CC   -!- COFACTOR:
CC       Name=AMP; Xref=ChEBI:CHEBI:456215; Evidence={ECO:0000250};
CC       Note=Binds 1 AMP per subunit. {ECO:0000250};
CC   -!- SUBUNIT: Heterodimer of an alpha and a beta subunit.
CC   -!- SIMILARITY: Belongs to the ETF beta-subunit/FixA family. {ECO:0000305}.
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DR   EMBL; U32230; AAB00906.1; -; Genomic_DNA.
DR   EMBL; BA000040; BAC46642.1; -; Genomic_DNA.
DR   RefSeq; NP_768017.1; NC_004463.1.
DR   RefSeq; WP_011084195.1; NZ_CP011360.1.
DR   AlphaFoldDB; P53575; -.
DR   SMR; P53575; -.
DR   STRING; 224911.27349628; -.
DR   EnsemblBacteria; BAC46642; BAC46642; BAC46642.
DR   GeneID; 64021246; -.
DR   KEGG; bja:blr1377; -.
DR   PATRIC; fig|224911.44.peg.799; -.
DR   eggNOG; COG2086; Bacteria.
DR   HOGENOM; CLU_060196_0_0_5; -.
DR   InParanoid; P53575; -.
DR   OMA; YNGGMVP; -.
DR   PhylomeDB; P53575; -.
DR   Proteomes; UP000002526; Chromosome.
DR   GO; GO:0009055; F:electron transfer activity; IBA:GO_Central.
DR   CDD; cd01714; ETF_beta; 1.
DR   Gene3D; 3.40.50.620; -; 1.
DR   InterPro; IPR000049; ET-Flavoprotein_bsu_CS.
DR   InterPro; IPR014730; ETF_a/b_N.
DR   InterPro; IPR012255; ETF_b.
DR   InterPro; IPR033948; ETF_beta_N.
DR   InterPro; IPR014729; Rossmann-like_a/b/a_fold.
DR   PANTHER; PTHR21294; PTHR21294; 1.
DR   Pfam; PF01012; ETF; 1.
DR   PIRSF; PIRSF000090; Beta-ETF; 1.
DR   SMART; SM00893; ETF; 1.
DR   PROSITE; PS01065; ETF_BETA; 1.
PE   3: Inferred from homology;
KW   Electron transport; FAD; Flavoprotein; Reference proteome; Transport.
FT   CHAIN           1..249
FT                   /note="Electron transfer flavoprotein subunit beta"
FT                   /id="PRO_0000167876"
FT   CONFLICT        21
FT                   /note="G -> A (in Ref. 1; AAB00906)"
FT                   /evidence="ECO:0000305"
SQ   SEQUENCE   249 AA;  26512 MW;  6AF55D94D3E0E742 CRC64;
     MKVLVPVKRV VDYNVKVRVK GDGSGVELAN VKMSMNPFDE IAVEEALRLK EGGKATEVVV
     VSIGPAQASE TIRTGLAMGA DRGILVKAEG TVEPLAVAKI LKKVAEEEQP GLIILGKQAI
     DDDSNQTGQM LAALLGWSQA TFASKLEVEG SDFKVTREVD GGLQTVKLKG PAIVTTDLRL
     NEPRYASLPN IMKAKKKPIA EKTVADYGVD VTARLEVLKT TEPAGRKAGV KVKDVAELVS
     KLKNEAGVL