ID A0A495RMM5_SPHMI Unreviewed; 409 AA.
AC A0A495RMM5;
DT 05-JUN-2019, integrated into UniProtKB/TrEMBL.
DT 05-JUN-2019, 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=DFR51_1997 {ECO:0000313|EMBL:RKS88787.1};
OS Sphingosinicella microcystinivorans.
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Sphingomonadales;
OC Sphingosinicellaceae; Sphingosinicella.
OX NCBI_TaxID=335406 {ECO:0000313|EMBL:RKS88787.1, ECO:0000313|Proteomes:UP000276029};
RN [1] {ECO:0000313|EMBL:RKS88787.1, ECO:0000313|Proteomes:UP000276029}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 19791 {ECO:0000313|EMBL:RKS88787.1,
RC ECO:0000313|Proteomes:UP000276029};
RA Goeker M.;
RT "Genomic Encyclopedia of Type Strains, Phase IV (KMG-IV): sequencing the
RT most valuable type-strain genomes for metagenomic binning, comparative
RT biology and taxonomic classification.";
RL Submitted (OCT-2018) 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:RKS88787.1}.
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DR EMBL; RBWX01000008; RKS88787.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A495RMM5; -.
DR OrthoDB; 9766715at2; -.
DR Proteomes; UP000276029; 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; 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 7..43
FT /note="2-oxoisovalerate dehydrogenase E1 alpha subunit N-
FT terminal"
FT /evidence="ECO:0000259|Pfam:PF12573"
FT DOMAIN 81..377
FT /note="Dehydrogenase E1 component"
FT /evidence="ECO:0000259|Pfam:PF00676"
FT REGION 1..39
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ SEQUENCE 409 AA; 44759 MW; 74CF82B2063C6B6E CRC64;
MLKNSSRLHI PEPGCRPGET PDMSHIKVPP AGEVRRPAED VDPAEIRDLA WALIRVLDDD
GNPVGDWNPE LSADVLEKGL RAMMLTRAYD ARMVRVQRQG KTSFYMKSTG EEAVAVAAAL
ALEYGDMCFP TYRQQGLLVA RDWPLVDMMN QVYSNSRDRL KGRQMPVFYS SREAGFFSIS
GNLGTQYSQA VGWAMASAAD NDSRIAAAWI GEGATAEGDF HHALTFASVY QAPVVLNIVN
NQWAISSFSG IAGGERTTFA SRGLGYGIPS LRVDGNDFLA VYAVTRWAAN RARGGLGPTV
IELFTYRAEG HSTSDDPSKY RPGAEAAVWP LGDPIERLKT HMNGAGLWSE DQHAALEKEL
EDVVRAAGKE SESYGTLKEG ARIPASSMFD DVYKEMPPHL VEQRKQAGV
//
