ID   ODPB_MYCGE              Reviewed;         326 AA.
AC   P47515;
DT   01-FEB-1996, integrated into UniProtKB/Swiss-Prot.
DT   01-FEB-1996, sequence version 1.
DT   27-MAR-2024, entry version 126.
DE   RecName: Full=Pyruvate dehydrogenase E1 component subunit beta;
DE            EC=1.2.4.1;
GN   Name=pdhB; OrderedLocusNames=MG273;
OS   Mycoplasma genitalium (strain ATCC 33530 / DSM 19775 / NCTC 10195 / G37)
OS   (Mycoplasmoides genitalium).
OC   Bacteria; Mycoplasmatota; Mycoplasmoidales; Mycoplasmoidaceae;
OC   Mycoplasmoides.
OX   NCBI_TaxID=243273;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 33530 / DSM 19775 / NCTC 10195 / G37;
RX   PubMed=7569993; DOI=10.1126/science.270.5235.397;
RA   Fraser C.M., Gocayne J.D., White O., Adams M.D., Clayton R.A.,
RA   Fleischmann R.D., Bult C.J., Kerlavage A.R., Sutton G.G., Kelley J.M.,
RA   Fritchman J.L., Weidman J.F., Small K.V., Sandusky M., Fuhrmann J.L.,
RA   Nguyen D.T., Utterback T.R., Saudek D.M., Phillips C.A., Merrick J.M.,
RA   Tomb J.-F., Dougherty B.A., Bott K.F., Hu P.-C., Lucier T.S.,
RA   Peterson S.N., Smith H.O., Hutchison C.A. III, Venter J.C.;
RT   "The minimal gene complement of Mycoplasma genitalium.";
RL   Science 270:397-403(1995).
CC   -!- FUNCTION: The pyruvate dehydrogenase complex catalyzes the overall
CC       conversion of pyruvate to acetyl-CoA and CO(2). It contains multiple
CC       copies of three enzymatic components: pyruvate dehydrogenase (E1),
CC       dihydrolipoamide acetyltransferase (E2) and lipoamide dehydrogenase
CC       (E3) (By similarity). {ECO:0000250}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=H(+) + N(6)-[(R)-lipoyl]-L-lysyl-[dihydrolipoyllysine-residue
CC         acetyltransferase] + pyruvate = CO2 + N(6)-[(R)-S(8)-
CC         acetyldihydrolipoyl]-L-lysyl-[dihydrolipoyllysine-residue
CC         acetyltransferase]; Xref=Rhea:RHEA:19189, Rhea:RHEA-COMP:10480,
CC         Rhea:RHEA-COMP:10481, ChEBI:CHEBI:15361, ChEBI:CHEBI:15378,
CC         ChEBI:CHEBI:16526, ChEBI:CHEBI:83099, ChEBI:CHEBI:83111; EC=1.2.4.1;
CC   -!- COFACTOR:
CC       Name=thiamine diphosphate; Xref=ChEBI:CHEBI:58937;
CC         Evidence={ECO:0000250};
CC   -!- SUBUNIT: Heterodimer of an alpha and a beta chain. {ECO:0000250}.
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DR   EMBL; L43967; AAC71495.1; -; Genomic_DNA.
DR   PIR; B64230; B64230.
DR   RefSeq; WP_009885905.1; NZ_AAGX01000009.1.
DR   AlphaFoldDB; P47515; -.
DR   SMR; P47515; -.
DR   STRING; 243273.MG_273; -.
DR   KEGG; mge:MG_273; -.
DR   eggNOG; COG0022; Bacteria.
DR   HOGENOM; CLU_012907_1_0_14; -.
DR   InParanoid; P47515; -.
DR   OrthoDB; 8732661at2; -.
DR   BioCyc; MGEN243273:G1GJ2-331-MONOMER; -.
DR   Proteomes; UP000000807; Chromosome.
DR   GO; GO:0140032; F:glycosylation-dependent protein binding; IPI:UniProtKB.
DR   GO; GO:0004739; F:pyruvate dehydrogenase (acetyl-transferring) activity; IEA:UniProtKB-EC.
DR   GO; GO:0009083; P:branched-chain amino acid catabolic process; IBA:GO_Central.
DR   GO; GO:0006096; P:glycolytic process; IEA:UniProtKB-KW.
DR   GO; GO:0007584; P:response to nutrient; IBA:GO_Central.
DR   CDD; cd07036; TPP_PYR_E1-PDHc-beta_like; 1.
DR   Gene3D; 3.40.50.920; -; 1.
DR   Gene3D; 3.40.50.970; -; 1.
DR   InterPro; IPR029061; THDP-binding.
DR   InterPro; IPR009014; Transketo_C/PFOR_II.
DR   InterPro; IPR005475; Transketolase-like_Pyr-bd.
DR   InterPro; IPR033248; Transketolase_C.
DR   PANTHER; PTHR42980:SF1; 2-OXOISOVALERATE DEHYDROGENASE SUBUNIT BETA, MITOCHONDRIAL; 1.
DR   PANTHER; PTHR42980; 2-OXOISOVALERATE DEHYDROGENASE SUBUNIT BETA-RELATED; 1.
DR   Pfam; PF02779; Transket_pyr; 1.
DR   Pfam; PF02780; Transketolase_C; 1.
DR   SMART; SM00861; Transket_pyr; 1.
DR   SUPFAM; SSF52518; Thiamin diphosphate-binding fold (THDP-binding); 1.
DR   SUPFAM; SSF52922; TK C-terminal domain-like; 1.
PE   3: Inferred from homology;
KW   Oxidoreductase; Pyruvate; Reference proteome; Thiamine pyrophosphate.
FT   CHAIN           1..326
FT                   /note="Pyruvate dehydrogenase E1 component subunit beta"
FT                   /id="PRO_0000162223"
FT   BINDING         62
FT                   /ligand="thiamine diphosphate"
FT                   /ligand_id="ChEBI:CHEBI:58937"
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   326 AA;  36026 MW;  7C5A0ECCD8A17DD7 CRC64;
     MSKIQVNNIE ALNNAMDLAL ERDQNVVLYG QDAGFEGGVF RATKGLQQKY GSERVWDCPI
     AENSMAGIGV GAAIGGLKPI VEIQFSGFSF PAMFQIFVHA ARIRNRSRGV YTAPLVVRMP
     MGGGIKALEH HSETLEAIYA QIAGLKTVMP SNPYDTKGLF LAAIESPDPV IFFEPKKLYR
     AFRQEIPSDY YTVPIGEANL ISEGSELTIV SYGPTMFDLI NLVYSGELKD KGIELIDLRT
     ISPWDKQTVF NSVKKTGRLL VVTEAVKSFT TSAEIITSVT EELFTYLKKA PQRVTGFDIV
     VPLARGEKYQ FEINARVIDA VNQLLK
//