Cellular and Molecular Life Sciences CMLS

, Volume 62, Issue 16, pp 1784–1803

Acetyl-coenzyme A carboxylase: crucial metabolic enzyme and attractive target for drug discovery


DOI: 10.1007/s00018-005-5121-4

Cite this article as:
Tong, L. CMLS, Cell. Mol. Life Sci. (2005) 62: 1784. doi:10.1007/s00018-005-5121-4


Acetyl-coenzyme A carboxylases (ACCs) have crucial roles in fatty acid metabolism in most living organisms. Mice deficient in ACC2 have continuous fatty acid oxidation and reduced body fat and body weight, validating this enzyme as a target for drug development against obesity, diabetes and other symptoms of the metabolic syndrome. ACC is a biotin-dependent enzyme and catalyzes the carboxylation of acetyl-CoA to produce malonyl-CoA through its two catalytic activities, biotin carboxylase (BC) and carboxyltransferase (CT). ACC is a multi-subunit enzyme in most prokaryotes, whereas it is a large, multi-domain enzyme in most eukaryotes. The activity of the enzyme can be controlled at the transcriptional level as well as by small molecule modulators and covalent modification. This review will summarize the structural information that is now available for both the BC and CT enzymes, as well as the molecular mechanism of action of potent ACC inhibitors. The current intense research on these enzymes could lead to the development of novel therapies against metabolic syndrome and other diseases.

Key words.

Metabolic syndromeobesitydiabetesstructure-based drug designfatty acid metabolismprotein structure and functionbiotin-dependent carboxylasesenzyme catalysis and mechanism

Copyright information

© Birkhäuser Verlag, Basel 2005

Authors and Affiliations

  1. 1.Department of Biological SciencesColumbia UniversityNew YorkUSA