Skip navigation

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

URL of this page:

ABHD5 gene

abhydrolase domain containing 5, lysophosphatidic acid acyltransferase

Normal Function

The ABHD5 gene provides instructions for making a protein that turns on (activates) an enzyme called adipose triglyceride lipase (ATGL). The ATGL enzyme plays a role in breaking down fats called triglycerides, which are the main source of stored energy in cells. Triglycerides are the major component of cell structures called lipid droplets (also called adiposomes). The ABHD5 protein and the ATGL enzyme are found on the surface of lipid droplets. Once activated, the ATGL enzyme breaks down triglycerides in these structures to provide energy for the body.

Health Conditions Related to Genetic Changes

Chanarin-Dorfman syndrome

At least 20 mutations in the ABHD5 gene have been found to cause Chanarin-Dorfman syndrome. These mutations impair the ABHD5 protein's ability to activate the ATGL enzyme. Without an active ATGL enzyme, triglycerides within lipid droplets cannot be broken down. As a result, these fats accumulate in various organs and tissues throughout the body, causing the signs and symptoms of Chanarin-Dorfman syndrome.

More About This Health Condition

Other Names for This Gene

  • CDS
  • CGI-58
  • CGI58
  • CGI58 protein
  • IECN2
  • MGC8731
  • NCIE2

Additional Information & Resources

Tests Listed in the Genetic Testing Registry

Scientific Articles on PubMed

Gene and Variant Databases


  • Lass A, Zimmermann R, Haemmerle G, Riederer M, Schoiswohl G, Schweiger M, Kienesberger P, Strauss JG, Gorkiewicz G, Zechner R. Adipose triglyceride lipase-mediated lipolysis of cellular fat stores is activated by CGI-58 and defective in Chanarin-Dorfman Syndrome. Cell Metab. 2006 May;3(5):309-19. doi: 10.1016/j.cmet.2006.03.005. Citation on PubMed
  • Lefevre C, Jobard F, Caux F, Bouadjar B, Karaduman A, Heilig R, Lakhdar H, Wollenberg A, Verret JL, Weissenbach J, Ozguc M, Lathrop M, Prud'homme JF, Fischer J. Mutations in CGI-58, the gene encoding a new protein of the esterase/lipase/thioesterase subfamily, in Chanarin-Dorfman syndrome. Am J Hum Genet. 2001 Nov;69(5):1002-12. doi: 10.1086/324121. Epub 2001 Oct 2. Citation on PubMed or Free article on PubMed Central
  • Yen CL, Farese RV Jr. Fat breakdown: a function for CGI-58 (ABHD5) provides a new piece of the puzzle. Cell Metab. 2006 May;3(5):305-7. doi: 10.1016/j.cmet.2006.04.001. Citation on PubMed

The information on this site should not be used as a substitute for professional medical care or advice. Contact a health care provider if you have questions about your health.