DBT (gene)

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Identifiers
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External IDsGeneCards: [1]
Orthologs
SpeciesHumanMouse
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RefSeq (mRNA)

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RefSeq (protein)

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Lipoamide acyltransferase component of branched-chain alpha-keto acid dehydrogenase complex, mitochondrial is an enzyme that in humans is encoded by the DBT gene.[1][2][3]

The branched-chain alpha-keto acid dehydrogenase complex (BCKD) is an inner-mitochondrial enzyme complex involved in the breakdown of the branched-chain amino acids isoleucine, leucine, and valine. The BCKD complex is thought to be composed of a core of 24 transacylase (E2) subunits, and associated decarboxylase (E1), dehydrogenase (E3), and regulatory subunits. This gene encodes the transacylase (E2) subunit. Mutations in this gene result in maple syrup urine disease, type 2. Alternatively spliced transcript variants have been described, but their biological validity has not been determined.[3]

References

  1. Lau KS, Chuang JL, Herring WJ, Danner DJ, Cox RP, Chuang DT (Dec 1992). "The complete cDNA sequence for dihydrolipoyl transacylase (E2) of human branched-chain alpha-keto acid dehydrogenase complex". Biochim Biophys Acta. 1132 (3): 319–21. doi:10.1016/0167-4781(92)90169-z. PMID 1420314.
  2. Lau KS, Herring WJ, Chuang JL, McKean M, Danner DJ, Cox RP, Chuang DT (Dec 1992). "Structure of the gene encoding dihydrolipoyl transacylase (E2) component of human branched chain alpha-keto acid dehydrogenase complex and characterization of an E2 pseudogene". J Biol Chem. 267 (33): 24090–6. PMID 1429740.
  3. 3.0 3.1 "Entrez Gene: DBT dihydrolipoamide branched chain transacylase E2".

Further reading




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