ID B4EEE9_BURCJ Unreviewed; 410 AA.
AC B4EEE9;
DT 23-SEP-2008, integrated into UniProtKB/TrEMBL.
DT 23-SEP-2008, sequence version 1.
DT 27-MAR-2024, entry version 73.
DE RecName: Full=2-oxoisovalerate dehydrogenase subunit alpha {ECO:0000256|RuleBase:RU365014};
DE EC=1.2.4.4 {ECO:0000256|RuleBase:RU365014};
DE AltName: Full=Branched-chain alpha-keto acid dehydrogenase E1 component alpha chain {ECO:0000256|RuleBase:RU365014};
GN Name=bkdA1 {ECO:0000313|EMBL:CAR51514.1};
GN ORFNames=BCAL1212 {ECO:0000313|EMBL:CAR51514.1};
OS Burkholderia cenocepacia (strain ATCC BAA-245 / DSM 16553 / LMG 16656 /
OS NCTC 13227 / J2315 / CF5610) (Burkholderia cepacia (strain J2315)).
OC Bacteria; Pseudomonadota; Betaproteobacteria; Burkholderiales;
OC Burkholderiaceae; Burkholderia; Burkholderia cepacia complex.
OX NCBI_TaxID=216591 {ECO:0000313|EMBL:CAR51514.1, ECO:0000313|Proteomes:UP000001035};
RN [1] {ECO:0000313|EMBL:CAR51514.1, ECO:0000313|Proteomes:UP000001035}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC BAA-245 / DSM 16553 / LMG 16656 / NCTC 13227 / J2315 /
RC CF5610 {ECO:0000313|Proteomes:UP000001035};
RX PubMed=18931103; DOI=10.1128/JB.01230-08;
RA Holden M.T., Seth-Smith H.M., Crossman L.C., Sebaihia M., Bentley S.D.,
RA Cerdeno-Tarraga A.M., Thomson N.R., Bason N., Quail M.A., Sharp S.,
RA Cherevach I., Churcher C., Goodhead I., Hauser H., Holroyd N., Mungall K.,
RA Scott P., Walker D., White B., Rose H., Iversen P., Mil-Homens D.,
RA Rocha E.P., Fialho A.M., Baldwin A., Dowson C., Barrell B.G., Govan J.R.,
RA Vandamme P., Hart C.A., Mahenthiralingam E., Parkhill J.;
RT "The genome of Burkholderia cenocepacia J2315, an epidemic pathogen of
RT cystic fibrosis patients.";
RL J. Bacteriol. 191:261-277(2009).
CC -!- FUNCTION: The branched-chain alpha-keto dehydrogenase complex catalyzes
CC the overall conversion of alpha-keto acids to acyl-CoA and CO(2). It
CC contains multiple copies of three enzymatic components: branched-chain
CC alpha-keto acid decarboxylase (E1), lipoamide acyltransferase (E2) and
CC lipoamide dehydrogenase (E3). {ECO:0000256|RuleBase:RU365014}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=3-methyl-2-oxobutanoate + H(+) + N(6)-[(R)-lipoyl]-L-lysyl-
CC [dihydrolipoyllysine-residue (2-methylpropanoyl)transferase] = CO2 +
CC N(6)-[(R)-S(8)-2-methylpropanoyldihydrolipoyl]-L-lysyl-
CC [dihydrolipoyllysine-residue (2-methylpropanoyl)transferase];
CC Xref=Rhea:RHEA:13457, Rhea:RHEA-COMP:10488, Rhea:RHEA-COMP:10489,
CC ChEBI:CHEBI:11851, ChEBI:CHEBI:15378, ChEBI:CHEBI:16526,
CC ChEBI:CHEBI:83099, ChEBI:CHEBI:83142; EC=1.2.4.4;
CC Evidence={ECO:0000256|RuleBase:RU365014};
CC -!- COFACTOR:
CC Name=thiamine diphosphate; Xref=ChEBI:CHEBI:58937;
CC Evidence={ECO:0000256|ARBA:ARBA00001964,
CC ECO:0000256|RuleBase:RU365014};
CC -!- SIMILARITY: Belongs to the BCKDHA family.
CC {ECO:0000256|RuleBase:RU365014}.
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DR EMBL; AM747720; CAR51514.1; -; Genomic_DNA.
DR RefSeq; WP_006476388.1; NC_011000.1.
DR AlphaFoldDB; B4EEE9; -.
DR GeneID; 83048009; -.
DR KEGG; bcj:BCAL1212; -.
DR eggNOG; COG1071; Bacteria.
DR HOGENOM; CLU_029393_1_0_4; -.
DR BioCyc; BCEN216591:G1G1V-1348-MONOMER; -.
DR Proteomes; UP000001035; Chromosome 1.
DR GO; GO:0003863; F:3-methyl-2-oxobutanoate dehydrogenase (2-methylpropanoyl-transferring) activity; IEA:UniProtKB-EC.
DR CDD; cd02000; TPP_E1_PDC_ADC_BCADC; 1.
DR Gene3D; 3.40.50.970; -; 1.
DR InterPro; IPR001017; DH_E1.
DR InterPro; IPR022593; Oxoisoval_DH_suAlpha_N_dom.
DR InterPro; IPR029061; THDP-binding.
DR PANTHER; PTHR43380; 2-OXOISOVALERATE DEHYDROGENASE SUBUNIT ALPHA, MITOCHONDRIAL; 1.
DR PANTHER; PTHR43380:SF1; 2-OXOISOVALERATE DEHYDROGENASE SUBUNIT ALPHA, MITOCHONDRIAL; 1.
DR Pfam; PF00676; E1_dh; 1.
DR Pfam; PF12573; OxoDH_E1alpha_N; 1.
DR SUPFAM; SSF52518; Thiamin diphosphate-binding fold (THDP-binding); 1.
PE 3: Inferred from homology;
KW Oxidoreductase {ECO:0000256|ARBA:ARBA00023002,
KW ECO:0000256|RuleBase:RU365014};
KW Thiamine pyrophosphate {ECO:0000256|RuleBase:RU365014}.
FT DOMAIN 5..44
FT /note="2-oxoisovalerate dehydrogenase E1 alpha subunit N-
FT terminal"
FT /evidence="ECO:0000259|Pfam:PF12573"
FT DOMAIN 82..377
FT /note="Dehydrogenase E1 component"
FT /evidence="ECO:0000259|Pfam:PF00676"
SQ SEQUENCE 410 AA; 44843 MW; 96A4AC0A99565CA7 CRC64;
MSLSEPLRLH VPEPTGRPGC KTDFSYLHLS PAGAVRRPPI DVAAADTADL ARSLVRVLDD
NGKAVGPWAP DLDDARLIAG LRAMLKTRIF DARMMIAQRQ KKISFYMLSL GEEAIGTAHA
MALRDGDMCF PTYRQQSILI ARDVPLERMI CQLMSNEGDP LKGRQLPVMY SDREAGFFSI
SGNLATQFIQ AVGWAMASAI KGDTKIASAW IGDGATAEAD FHTALTFAHV YRAPVVLNVV
NNQWAISTFQ AIAGGEGTTF AGRGVGCGIA SLRVDGNDFL AIYAASSWAA ERARRNLGPT
LIEWVTYRAG AHSTSDDPTK YRPSDDWSHF PLGDPIERFK RHLIVKGIWS DSAHDALTAE
LEAEVIAAQK EAEKYGTLAD DRIPSPASMF DDVYKELPAH LRRQRQELGA
//
