Isobutyryl-CoA dehydrogenase, mitochondrial is an enzyme that in humans is encoded by the ACAD8gene on chromosome 11.[5][6]
The protein encoded by ACAD8 is a mitochondrial protein belongs to the acyl-CoAdehydrogenase family of enzymes, which function to catalyze the dehydrogenation of acyl-CoA derivatives in the metabolism of fatty acids or branched-chain amino acids. ACAD8 functions in catabolism of the branched-chain amino acid valine.
ACAD8 functions as a homotetramer and has an overall structure is similar to other acyl-CoA dehydrogenases. The functional protein contains an NH2-terminal alpha-helical domain, a medial beta-strand domain and a C-terminal alpha-helical domain.[7]
ACAD8 is an isobutyryl-CoA dehydrogenase that functions in the catabolism of branched-chain amino acids including valine, and shows high reactivity toward isobutyryl-CoA.[8] ACAD8 is responsible for the third step in the breakdown of valine and converts isobutyryl-CoA into methylacrylyl-CoA.
^"Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^"Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^Telford EA, Moynihan LM, Markham AF, Lench NJ (Sep 1999). "Isolation and characterisation of a cDNA encoding the precursor for a novel member of the acyl-CoA dehydrogenase gene family". Biochimica et Biophysica Acta (BBA) - Gene Structure and Expression. 1446 (3): 371–6. doi:10.1016/s0167-4781(99)00102-5. PMID10524212.