ID A0A437KF53_9BACI Unreviewed; 330 AA.
AC A0A437KF53;
DT 08-MAY-2019, integrated into UniProtKB/TrEMBL.
DT 08-MAY-2019, sequence version 1.
DT 24-JAN-2024, entry version 16.
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 ORFNames=EM808_07355 {ECO:0000313|EMBL:RVT65699.1};
OS Niallia taxi.
OC Bacteria; Bacillota; Bacilli; Bacillales; Bacillaceae; Niallia.
OX NCBI_TaxID=2499688 {ECO:0000313|EMBL:RVT65699.1, ECO:0000313|Proteomes:UP000288024};
RN [1] {ECO:0000313|EMBL:RVT65699.1, ECO:0000313|Proteomes:UP000288024}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=M5HDSG1-1 {ECO:0000313|EMBL:RVT65699.1,
RC ECO:0000313|Proteomes:UP000288024};
RA Tuo L.;
RT "Bacillus sp. M5HDSG1-1, whole genome shotgun sequence.";
RL Submitted (JAN-2019) to the EMBL/GenBank/DDBJ databases.
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}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:RVT65699.1}.
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DR EMBL; RZTZ01000002; RVT65699.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A437KF53; -.
DR Proteomes; UP000288024; Unassembled WGS sequence.
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; 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:UP000288024};
KW Thiamine pyrophosphate {ECO:0000256|RuleBase:RU365014}.
FT DOMAIN 20..321
FT /note="Dehydrogenase E1 component"
FT /evidence="ECO:0000259|Pfam:PF00676"
SQ SEQUENCE 330 AA; 36761 MW; 623E48EC3100F888 CRC64;
MVEKRHLQAG LTDEQVLEMY RYMLLARRID ERMWLLNRSG KIPFVVSCQG QEAAQVGTAF
AFDRAKDYSL PYYRDLGVVL AFGQTPKEIM LQGFAKAEDP NSGGRQMPGH FGQKKNRIVT
GSSPVTTQVP HAVGIALAGK IEKKDFVTYV SFGEGSSNQG DFHEGANFAG VHKLPVIFVC
ENNKYAISVP IEKQLACENV SDRAIGYGMP GYTVDGNDPI EVYRVTKEAV DRARRGEGPT
LIETVSYRLT PHSSDDDDRA YRGREEVAEA KAKDPVITFK QYLLDTGVLT EDMDKELNAD
MMQIIDDATE YAEKAPYAKP EDAMNYVYGN
//
