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Carnitine-acylcarnitine translocase deficiency

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Carnitine-acylcarnitine translocase deficiency is a condition that prevents the body from converting certain fats called long-chain fatty acids into energy, particularly during periods without food (fasting). Carnitine, a natural substance acquired mostly through the diet, is used by cells to process fats and produce energy. People with this disorder have a faulty transporter that disrupts carnitine's role in processing long-chain fatty acids.[1] Carnitine-acylcarnitine translocase deficiency is a type of fatty acid oxidation disorder. There are two forms of carnitine-acylcarnitine translocase deficiency. The most common type happens in newborns. A milder, less common type happens in older infants and children.[2]
Last updated: 7/26/2013


  1. Carnitine-acylcarnitine translocase deficiency. Genetics Home Reference. August 2006; Accessed 4/4/2008.
  2. Carnitine-acylcarnitine translocase deficiency. Screening, Technology and Research in Genetics. October 5, 2007; Accessed 4/4/2008.
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Basic Information

  • Genetics Home Reference (GHR) contains information on Carnitine-acylcarnitine translocase deficiency. This website is maintained by the National Library of Medicine.
  • The Screening, Technology And Research in Genetics (STAR-G) Project has a fact sheet on this condition, which was written specifically for families that have received a diagnosis as a result of newborn screening. This fact sheet provides general information about the condition and answers questions that are of particular concern to parents.

In Depth Information

  • The Online Mendelian Inheritance in Man (OMIM) is an catalog of human genes and genetic disorders. Each entry has a summary of related medical articles. It is meant for health care professionals and researchers. OMIM is maintained by Johns Hopkins University School of Medicine. 
  • Orphanet is a European reference portal for information on rare diseases and orphan drugs.  Access to this database is free of charge.
  • PubMed is a searchable database of medical literature and lists journal articles that discuss Carnitine-acylcarnitine translocase deficiency. Click on the link to view a sample search on this topic.