ID A0A109QDZ3_9BACL Unreviewed; 330 AA.
AC A0A109QDZ3;
DT 13-APR-2016, integrated into UniProtKB/TrEMBL.
DT 13-APR-2016, sequence version 1.
DT 24-JAN-2024, entry version 32.
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=ACH33_13020 {ECO:0000313|EMBL:AMA73688.1};
OS Aneurinibacillus sp. XH2.
OC Bacteria; Bacillota; Bacilli; Bacillales; Paenibacillaceae;
OC Aneurinibacillus group; Aneurinibacillus.
OX NCBI_TaxID=1450761 {ECO:0000313|EMBL:AMA73688.1, ECO:0000313|Proteomes:UP000065566};
RN [1] {ECO:0000313|Proteomes:UP000065566}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Xh2 {ECO:0000313|Proteomes:UP000065566};
RA Xi L.;
RL Submitted (OCT-2015) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|EMBL:AMA73688.1, ECO:0000313|Proteomes:UP000065566}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Xh2 {ECO:0000313|EMBL:AMA73688.1,
RC ECO:0000313|Proteomes:UP000065566};
RA Zhang Z., Qiao N., Zhang Y., Xiao Z., Jing L., Zhao J.-Y.;
RT "Draft genome of the novel themophilic polyhydroxyalkanoates producer
RT Aneurinibacillus sp. XH2 (CCTCC M 2013550) isolated from Gudao oilfield in
RT China.";
RL Submitted (JAN-2016) 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 ---------------------------------------------------------------------------
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; CP014140; AMA73688.1; -; Genomic_DNA.
DR RefSeq; WP_057899416.1; NZ_CP014140.1.
DR AlphaFoldDB; A0A109QDZ3; -.
DR STRING; 1450761.ACH33_13020; -.
DR KEGG; anx:ACH33_13020; -.
DR Proteomes; UP000065566; Chromosome.
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:UP000065566};
KW Thiamine pyrophosphate {ECO:0000256|RuleBase:RU365014}.
FT DOMAIN 22..321
FT /note="Dehydrogenase E1 component"
FT /evidence="ECO:0000259|Pfam:PF00676"
FT REGION 298..330
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ SEQUENCE 330 AA; 36806 MW; 733AE4D4ECF65E59 CRC64;
MVENRHQAAG LTDEQVMDMY YYMLLARKID ERMWLLNRAG KIPFVISCQG QEAAQVGAAF
AFDRKKDYAC PYYRDMGVVL VFGMTAKDMM LSAFAKAEDP NSGGRQMPGH FGSRKHNILT
GSSPVTTQVP HAVGIALAGR MDNKNPVVYT SFGEGSSNQG DFHEGANFAG VHKLPVIFFC
ENNKYAISVP VTKQLGCKSV AERAQGYGFP GVSIDGNDPI EVYKAVKEAV DRARRGEGPT
LIEAVTYRLV PHSSDDDDRS YRSREEVEEA KKKDPLLRFA SYLREVGVLI EEKEQEINER
VTREVDEATE YAENAPYPEP ESALRHVYAE
//
