ID Q0RHV1_FRAAA Unreviewed; 365 AA.
AC Q0RHV1;
DT 05-SEP-2006, integrated into UniProtKB/TrEMBL.
DT 05-SEP-2006, sequence version 1.
DT 27-MAR-2024, entry version 93.
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 OrderedLocusNames=FRAAL4280 {ECO:0000313|EMBL:CAJ62922.1};
OS Frankia alni (strain DSM 45986 / CECT 9034 / ACN14a).
OC Bacteria; Actinomycetota; Actinomycetes; Frankiales; Frankiaceae; Frankia.
OX NCBI_TaxID=326424 {ECO:0000313|EMBL:CAJ62922.1, ECO:0000313|Proteomes:UP000000657};
RN [1] {ECO:0000313|EMBL:CAJ62922.1, ECO:0000313|Proteomes:UP000000657}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ACN14a {ECO:0000313|Proteomes:UP000000657};
RX PubMed=17151343; DOI=10.1101/gr.5798407;
RA Normand P., Lapierre P., Tisa L.S., Gogarten J.P., Alloisio N.,
RA Bagnarol E., Bassi C.A., Berry A.M., Bickhart D.M., Choisne N., Couloux A.,
RA Cournoyer B., Cruveiller S., Daubin V., Demange N., Francino M.P.,
RA Goltsman E., Huang Y., Kopp O.R., Labarre L., Lapidus A., Lavire C.,
RA Marechal J., Martinez M., Mastronunzio J.E., Mullin B.C., Niemann J.,
RA Pujic P., Rawnsley T., Rouy Z., Schenowitz C., Sellstedt A., Tavares F.,
RA Tomkins J.P., Vallenet D., Valverde C., Wall L.G., Wang Y., Medigue C.,
RA Benson D.R.;
RT "Genome characteristics of facultatively symbiotic Frankia sp. strains
RT reflect host range and host plant biogeography.";
RL Genome Res. 17:7-15(2007).
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; CT573213; CAJ62922.1; -; Genomic_DNA.
DR AlphaFoldDB; Q0RHV1; -.
DR STRING; 326424.FRAAL4280; -.
DR KEGG; fal:FRAAL4280; -.
DR eggNOG; COG1071; Bacteria.
DR HOGENOM; CLU_029393_1_0_11; -.
DR Proteomes; UP000000657; Chromosome.
DR GO; GO:0003863; F:3-methyl-2-oxobutanoate dehydrogenase (2-methylpropanoyl-transferring) activity; IEA:RHEA.
DR GO; GO:0000287; F:magnesium ion binding; IEA:UniProt.
DR CDD; cd02000; TPP_E1_PDC_ADC_BCADC; 1.
DR Gene3D; 3.40.50.970; -; 1.
DR InterPro; IPR001017; DH_E1.
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 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 Reference proteome {ECO:0000313|Proteomes:UP000000657};
KW Thiamine pyrophosphate {ECO:0000256|RuleBase:RU365014}.
FT DOMAIN 42..302
FT /note="Dehydrogenase E1 component"
FT /evidence="ECO:0000259|Pfam:PF00676"
SQ SEQUENCE 365 AA; 39851 MW; A231D0793B6DF846 CRC64;
MPSPPPEPAD SGVRLLAPDG TRVTDPRFAV LADHDLCREF YSSMVLARRL DEEATALQRQ
GELVLWIPLR GQEAAQVGSA AAVRPRDFIF PSYREHAVAW HRGVPAAEVI RLLRGVSHDG
WDTAEHNMAN YTIVLASQTL HAVGYGMGMV LDGAVGTGDP DRDGAVLVYL GDGAMSQGDA
NEAFVWAASF GAPVVFLCQN NQWAISTPTR RQSTMQLARR ADGFGFPGVR VDGNDVLAMH
AVTTWALEHA RGGGGPVLIE ANTYRMAPHT TSDDATRYQP AEELAVWRAR DPIERLRLLL
AAEVSAGWFD EVREHADDAA GDLRRACLAM DPPAPVTMFG NVSADETADQ RAQREWFTAY
RDSFL
//
