ID A0A231PFI7_9ACTN Unreviewed; 279 AA.
AC A0A231PFI7;
DT 25-OCT-2017, integrated into UniProtKB/TrEMBL.
DT 25-OCT-2017, sequence version 1.
DT 24-JAN-2024, entry version 15.
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=CHR28_20495 {ECO:0000313|EMBL:OXS33478.1};
OS Streptomyces sp. XY006.
OC Bacteria; Actinomycetota; Actinomycetes; Kitasatosporales;
OC Streptomycetaceae; Streptomyces.
OX NCBI_TaxID=2021410 {ECO:0000313|EMBL:OXS33478.1, ECO:0000313|Proteomes:UP000215527};
RN [1] {ECO:0000313|EMBL:OXS33478.1, ECO:0000313|Proteomes:UP000215527}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=XY006 {ECO:0000313|EMBL:OXS33478.1,
RC ECO:0000313|Proteomes:UP000215527};
RA Shan W., Liu H., Zhou Y., Yu X.;
RT "Draft Genome Sequence of Streptomyces sp. XY006, an Endophyte Isolated
RT from Tea (Camellia sinensis).";
RL Submitted (JUL-2017) 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:OXS33478.1}.
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; NOKT01000017; OXS33478.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A231PFI7; -.
DR OrthoDB; 9766715at2; -.
DR Proteomes; UP000215527; Unassembled WGS sequence.
DR GO; GO:0000287; F:magnesium ion binding; IEA:UniProt.
DR GO; GO:0016624; F:oxidoreductase activity, acting on the aldehyde or oxo group of donors, disulfide as acceptor; IEA:InterPro.
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}; Pyruvate {ECO:0000313|EMBL:OXS33478.1};
KW Thiamine pyrophosphate {ECO:0000256|RuleBase:RU365014}.
FT DOMAIN 1..268
FT /note="Dehydrogenase E1 component"
FT /evidence="ECO:0000259|Pfam:PF00676"
SQ SEQUENCE 279 AA; 30279 MW; 58339D18FE364713 CRC64;
MLVARGIDEE ARQLQKQGAL DLWLSCQGQE AAQVGSALAV GPDPTVFPSY REHAVALLRG
VTPAELVAQW GGRTFCGWDP LGLRFFPYTL VLAAQTLHGV GYSIGRRLQG REDFVVVYIG
DGATSEGDMS EAMNLAAVES ASVLFVCQNN GWAISKPARE QMRTSLAERA RGFGIEAERI
PGGDPETVFS ACSRAAAHIR AERSPRLVEI EVARMHGHST SDAQEIYRTG EDIAQARAAD
PVTAYAARLR ASGLVDAAWF DGVEAEVRVL REQLMKEYT
//