ATP citrate lyase

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ATP citrate lyase
Identifiers
Symbol ACLY
Entrez 47
HUGO 115
OMIM 108728
RefSeq NM_001096
UniProt P53396
Other data
EC number 2.3.3.8
Locus Chr. 17 q21.2

ATP citrate lyase is an enzyme that represents an important step in fatty acid biosynthesis.

Contents

[edit] Reaction

In the presence of ATP and Coenzyme A, catalyzes the cleavage of citrate to yield acetyl CoA, oxaloacetate, ADP, and orthophosphate:

citrate + ATP + CoA-->oxaloacetate + Acetyl-CoA + ADP + Pi.

This enzyme was formerly listed as EC 4.1.3.8.[1]

[edit] Location

The enzyme is cytosolic in plants[2] and animals.

[edit] Structure

The enzyme is composed of two subunits in green plants (including Chlorophyceae, Marchantimorpha, Bryopsida, Pinaceae, monocotyledons, and eudicots), species of fungi, Glaucophytes, Chlamydomonas, and prokaryotes.

Animal ACL enzymes are homomeric, presumably an evolutionary fusion of the ACLA and ACLB genes probably occurred early in the evolutionary history of this kingdom.[3]

[edit] References

  1. ^ MeSH ATP+Citrate+Lyase
  2. ^ Kaethner TM, ap Rees T. Planta. 1985;163:290;[1]
  3. ^ Molecular Characterization of a Heteromeric ATP-Citrate Lyase That Generates Cytosolic Acetyl-Coenzyme A in Arabidopsis - Fatland et al. 130 (2): 740 - PLANT PHYSIOLOGY

This article incorporates text from the National Library of Medicine, a public domain work of the United States Government.