Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Identification of the active site residues in ATP‐citrate lyase's carboxy‐terminal portion

Journal Article · · Protein Science
DOI:https://doi.org/10.1002/pro.3708· OSTI ID:1558838
 [1];  [1];  [2];  [3];  [1]
  1. Department of Biological Sciences University of Calgary Calgary Alberta Canada
  2. Structural Biology Unit CSIC Barcelona Spain
  3. Structural Biology Unit CSIC Barcelona Spain, ICREA Barcelona Spain
Abstract

ATP‐citrate lyase (ACLY) catalyzes production of acetyl‐CoA and oxaloacetate from CoA and citrate using ATP. In humans, this cytoplasmic enzyme connects energy metabolism from carbohydrates to the production of lipids. In certain bacteria, ACLY is used to fix carbon in the reductive tricarboxylic acid cycle. The carboxy(C)‐terminal portion of ACLY shows sequence similarity to citrate synthase of the tricarboxylic acid cycle. To investigate the roles of residues of ACLY equivalent to active site residues of citrate synthase, these residues in ACLY from Chlorobium limicola were mutated, and the proteins were investigated using kinetics assays and biophysical techniques. To obtain the crystal structure of the C‐terminal portion of ACLY, full‐length C. limicola ACLY was cleaved, first non‐specifically with chymotrypsin and subsequently with Tobacco Etch Virus protease. Crystals of the C‐terminal portion diffracted to high resolution, providing structures that show the positions of active site residues and how ACLY tetramerizes.

Sponsoring Organization:
USDOE
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1558838
Journal Information:
Protein Science, Journal Name: Protein Science Journal Issue: 10 Vol. 28; ISSN 0961-8368
Publisher:
Wiley Blackwell (John Wiley & Sons)Copyright Statement
Country of Publication:
United Kingdom
Language:
English

References (39)

A detailed structural description of Escherichia coli succinyl-CoA synthetase 1 1Edited by D. Rees journal January 1999
ATP-linked citrate lyase activity in the green sulfur bacterium Chlorobium limicola forma thiosulfatophilum journal December 1980
Nature of the phosphorylated residue in citrate cleavage enzyme journal June 1969
Crystallographic refinement and atomic models of two different forms of citrate synthase at 2·7 and 1·7 Å resolution journal June 1982
Regulation of citrate synthase activity in Escherichia coli journal October 1966
The Citrate Cleavage Enzyme journal October 1959
The Preparation, Properties, and Reactions of Succinyl Coenzyme A Synthetase and Its Phosphorylated Form journal October 1967
Enzyme–substrate complexes of allosteric citrate synthase: Evidence for a novel intermediate in substrate binding journal December 2013
Conformational stability of pig citrate synthase and some active-site mutants journal September 1991
A Very Short Hydrogen Bond Provides Only Moderate Stabilization of an Enzyme-Inhibitor Complex of Citrate Synthase journal June 1994
Proposed mechanism for the condensation reaction of citrate synthase: 1.9-.ANG. structure of the ternary complex with oxaloacetate and carboxymethyl coenzyme A journal March 1990
Mutation of essential catalytic residues in pig citrate synthase journal August 1990
Comparative Analysis of Folding and Substrate Binding Sites between Regulated Hexameric Type II Citrate Synthases and Unregulated Dimeric Type I Enzymes , journal November 2001
Insights into the Evolution of Allosteric Properties. The NADH Binding Site of Hexameric Type II Citrate Synthases , journal May 2003
Structure of a NADH-Insensitive Hexameric Citrate Synthase that Resists Acid Inactivation journal November 2006
Active Site Mutants of Pig Citrate Synthase:  Effects of Mutations on the Enzyme Catalytic and Structural Properties journal January 1996
An allosteric mechanism for potent inhibition of human ATP-citrate lyase journal April 2019
Structure of ATP citrate lyase and the origin of citrate synthase in the Krebs cycle journal April 2019
Kinetic and biochemical analyses on the reaction mechanism of a bacterial ATP-citrate lyase journal June 2002
ATP-citrate lyase from the green sulfur bacterium Chlorobium limicola is a heteromeric enzyme composed of two distinct gene products : ATP-citrate lyase from journal March 2001
Structure of NDP-forming Acetyl-CoA synthetase ACD1 reveals a large rearrangement for phosphoryl transfer journal January 2016
Acetyl-CoA Synthetase from the Amitochondriate Eukaryote Giardia lamblia Belongs to the Newly Recognized Superfamily of Acyl-CoA Synthetases (Nucleoside Diphosphate-forming) journal February 2000
Identification of the Citrate-binding Site of Human ATP-Citrate Lyase Using X-ray Crystallography journal June 2010
ATP-citrate lyase multimerization is required for coenzyme-A substrate binding and catalysis journal March 2019
The Protein Data Bank journal January 2000
CATH: an expanded resource to predict protein function through structure and sequence journal November 2016
xia2 : an expert system for macromolecular crystallography data reduction journal December 2009
Scaling and assessment of data quality journal December 2005
PHENIX: a comprehensive Python-based system for macromolecular structure solution journal January 2010
Features and development of Coot journal March 2010
Overview of the CCP 4 suite and current developments journal March 2011
Towards automated crystallographic structure refinement with phenix.refine journal March 2012
How good are my data and what is the resolution? journal June 2013
ATP-Citrate Lyase Links Cellular Metabolism to Histone Acetylation journal May 2009
Characterization of ATP citrate lyase from Chlorobium limicola journal December 1982
Protein Identification and Analysis Tools on the ExPASy Server book January 2005
Two-Stage PCR Protocol Allowing Introduction of Multiple Mutations, Deletions and Insertions Using QuikChange TM Site-Directed Mutagenesis journal April 1999
Current Drug Targets for Antihyperlipidemic Therapy journal March 2010
ATP Citrate Lyase Inhibitors as Novel Cancer Therapeutic Agents journal March 2012

Similar Records

Cytosolic Acetyl-CoA Generated by ATP-Citrate Lyase Is Essential for Acetylation of Cell Wall Polysaccharides
Journal Article · Tue Sep 10 00:00:00 EDT 2019 · Plant and Cell Physiology · OSTI ID:1800072

Cytosolic Acetyl-CoA Generated by ATP-Citrate Lyase Is Essential for Acetylation of Cell Wall Polysaccharides
Journal Article · Mon Sep 09 20:00:00 EDT 2019 · Plant and Cell Physiology · OSTI ID:1599930

ATP citrate lyase from germinating castor bean endosperm: localization and some properties
Journal Article · Sat Mar 31 23:00:00 EST 1979 · Plant Physiol.; (United States) · OSTI ID:5639327

Related Subjects