ACAD8 gene
acyl-CoA dehydrogenase family member 8
The ACAD8 gene provides instructions for making an enzyme called isobutyryl-CoA dehydrogenase (IBD). This enzyme is found in mitochondria, the energy-producing centers inside cells. The IBD enzyme is involved in breaking down proteins from food. Specifically, this enzyme is responsible for the third step in the breakdown of a protein building block (amino acid) called valine. The IBD enzyme converts a molecule called isobutyryl-CoA into a molecule called methylacrylyl-CoA. Other enzymes further break down methylacrylyl-CoA into molecules that cells can use for energy.
Related Information
At least 19 mutations in the ACAD8 gene have been found to cause isobutyryl-CoA dehydrogenase (IBD) deficiency. Some of these mutations reduce the activity of the IBD enzyme, while other mutations prevent the gene from producing any functional enzyme. As a result, valine is not broken down properly. An inability to process valine may lead to reduced energy production and the features of IBD deficiency.
Related Information
Cytogenetic Location: 11q25, which is the long (q) arm of chromosome 11 at position 25
Molecular Location: base pairs 134,253,538 to 134,265,858 on chromosome 11 (Homo sapiens Updated Annotation Release 109.20200522, GRCh38.p13) (NCBI)
Related Information
- ACAD-8
- ACAD8_HUMAN
- Activator-recruited cofactor 42 kDa component
- acyl-CoA dehydrogenase family, member 8
- acyl-coenzyme A dehydrogenase 8
- ARC42
- FLJ22590
Related Information
- OMIM: ACYL-CoA DEHYDROGENASE FAMILY, MEMBER 8
- Koeberl DD, Young SP, Gregersen NS, Vockley J, Smith WE, Benjamin DK Jr, An Y, Weavil SD, Chaing SH, Bali D, McDonald MT, Kishnani PS, Chen YT, Millington DS. Rare disorders of metabolism with elevated butyryl- and isobutyryl-carnitine detected by tandem mass spectrometry newborn screening. Pediatr Res. 2003 Aug;54(2):219-23. Epub 2003 May 7.
- Nguyen TV, Andresen BS, Corydon TJ, Ghisla S, Abd-El Razik N, Mohsen AW, Cederbaum SD, Roe DS, Roe CR, Lench NJ, Vockley J. Identification of isobutyryl-CoA dehydrogenase and its deficiency in humans. Mol Genet Metab. 2002 Sep-Oct;77(1-2):68-79.
- Oglesbee D, He M, Majumder N, Vockley J, Ahmad A, Angle B, Burton B, Charrow J, Ensenauer R, Ficicioglu CH, Keppen LD, Marsden D, Tortorelli S, Hahn SH, Matern D. Development of a newborn screening follow-up algorithm for the diagnosis of isobutyryl-CoA dehydrogenase deficiency. Genet Med. 2007 Feb;9(2):108-16.
- Pedersen CB, Bischoff C, Christensen E, Simonsen H, Lund AM, Young SP, Koeberl DD, Millington DS, Roe CR, Roe DS, Wanders RJ, Ruiter JP, Keppen LD, Stein Q, Knudsen I, Gregersen N, Andresen BS. Variations in IBD (ACAD8) in children with elevated C4-carnitine detected by tandem mass spectrometry newborn screening. Pediatr Res. 2006 Sep;60(3):315-20. Epub 2006 Jul 20.
- Roe CR, Cederbaum SD, Roe DS, Mardach R, Galindo A, Sweetman L. Isolated isobutyryl-CoA dehydrogenase deficiency: an unrecognized defect in human valine metabolism. Mol Genet Metab. 1998 Dec;65(4):264-71.
- Sass JO, Sander S, Zschocke J. Isobutyryl-CoA dehydrogenase deficiency: isobutyrylglycinuria and ACAD8 gene mutations in two infants. J Inherit Metab Dis. 2004;27(6):741-5.
- Yoo EH, Cho HJ, Ki CS, Lee SY. Isobutyryl-CoA dehydrogenase deficiency with a novel ACAD8 gene mutation detected by tandem mass spectrometry newborn screening. Clin Chem Lab Med. 2007;45(11):1495-7.