ID   ODPB_CYACA              Reviewed;         327 AA.
AC   Q9TLS3;
DT   06-MAR-2007, integrated into UniProtKB/Swiss-Prot.
DT   01-MAY-2000, sequence version 1.
DT   27-MAR-2024, entry version 81.
DE   RecName: Full=Pyruvate dehydrogenase E1 component subunit beta;
DE            EC=1.2.4.1;
GN   Name=pdhB; Synonyms=odpB;
OS   Cyanidium caldarium (Red alga).
OG   Plastid; Chloroplast.
OC   Eukaryota; Rhodophyta; Bangiophyceae; Cyanidiales; Cyanidiaceae; Cyanidium.
OX   NCBI_TaxID=2771;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=RK-1;
RX   PubMed=11040290; DOI=10.1007/s002390010101;
RA   Gloeckner G., Rosenthal A., Valentin K.-U.;
RT   "The structure and gene repertoire of an ancient red algal plastid
RT   genome.";
RL   J. Mol. Evol. 51:382-390(2000).
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}.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast.
CC   ---------------------------------------------------------------------------
CC   Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC   Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC   ---------------------------------------------------------------------------
DR   EMBL; AF022186; AAF12898.1; -; Genomic_DNA.
DR   RefSeq; NP_045196.1; NC_001840.1.
DR   AlphaFoldDB; Q9TLS3; -.
DR   SMR; Q9TLS3; -.
DR   GeneID; 800229; -.
DR   GO; GO:0009507; C:chloroplast; IEA:UniProtKB-SubCell.
DR   GO; GO:0004739; F:pyruvate dehydrogenase (acetyl-transferring) activity; IEA:UniProtKB-EC.
DR   GO; GO:0006086; P:acetyl-CoA biosynthetic process from pyruvate; IEA:InterPro.
DR   GO; GO:0006096; P:glycolytic process; IEA:UniProtKB-KW.
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; IPR027110; PDHB.
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; PTHR11624; DEHYDROGENASE RELATED; 1.
DR   PANTHER; PTHR11624:SF96; PYRUVATE DEHYDROGENASE E1 COMPONENT SUBUNIT BETA, MITOCHONDRIAL; 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   Chloroplast; Oxidoreductase; Plastid; Pyruvate; Thiamine pyrophosphate.
FT   CHAIN           1..327
FT                   /note="Pyruvate dehydrogenase E1 component subunit beta"
FT                   /id="PRO_0000280107"
FT   BINDING         60
FT                   /ligand="thiamine diphosphate"
FT                   /ligand_id="ChEBI:CHEBI:58937"
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   327 AA;  35946 MW;  0697A6E73817EFF2 CRC64;
     MSMMFLYEAL RAAIDEEMGK DSNVFIVGED VGHYGGSYKV TKDLHVKYGD LRVLDAPIAE
     NSFTGMAIGA AMTGLRPIVE GMNMGFMLLA FNQISNNLSM LQYTSGGNFN IPVVIRGPGG
     IGKQLAAEHS QRLESCFQSI PGLQIVACST AYNAKGLLKS AIIEKKPILF LEHVLLYNLK
     GFVPDEEYYL PLDKAEVVRS GSDVTIVTYS RMRYHVLAAV EKLVLNGQDP EIIDLISLKP
     LDLHTISKSI KKTHKIVIVE ECAQTGGIAA ELISLINTYL YDELDSPAVR LSSKDVPIPY
     NGNLEKSTLI QPDQIVDVVT NLLQYKT
//