The structure of S . lividans acetoacetyl-CoA synthetase shows a novel interaction between the C-terminal extension and the N-terminal domain
- Hauptman-Woodward Institute, Buffalo New York 14203; Department of Structural Biology, University at Buffalo, Buffalo New York 14203; Office of Scientific and Technical Information (OSTI)
- Department of Microbiology, University of Georgia, Athens Georgia 30602
- Hauptman-Woodward Institute, Buffalo New York 14203; Department of Structural Biology, University at Buffalo, Buffalo New York 14203
The adenosine monoposphate-forming acyl-CoA synthetase enzymes catalyze a two-step reaction that involves the initial formation of an acyl adenylate that reacts in a second partial reaction to form a thioester between the acyl substrate and CoA. These enzymes utilize a Domain Alternation catalytic mechanism, whereby a ~110 residue C-terminal domain rotates by 140° to form distinct catalytic conformations for the two partial reactions. In this paper, the structure of an acetoacetyl-CoA synthetase (AacS) is presented that illustrates a novel aspect of this C-terminal domain. Specifically, several acetyl- and acetoacetyl-CoA synthetases contain a 30-residue extension on the C-terminus compared to other members of this family. Finally, whereas residues from this extension are disordered in prior structures, the AacS structure shows that residues from this extension may interact with key catalytic residues from the N-terminal domain.
- Research Organization:
- Hauptman-Woodward Inst., Buffalo, NY (United States); Univ. at Buffalo, NY (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); USDOE Office of Science (SC), Biological and Environmental Research (BER) (SC-23)
- Grant/Contract Number:
- AC02-76SF00515
- OSTI ID:
- 1343103
- Journal Information:
- Proteins, Journal Name: Proteins Journal Issue: 3 Vol. 83; ISSN 0887-3585
- Publisher:
- WileyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Acylation of Biomolecules in Prokaryotes: a Widespread Strategy for the Control of Biological Function and Metabolic Stress
|
journal | July 2015 |
Similar Records
Biochemical and Crystallographic Analysis of Substrate Binding and Conformational Changes in Acetyl-CoA Synthetase
The pimeloyl-CoA synthetase BioW defines a new fold for adenylate-forming enzymes
Transcriptional regulation of acetoacetyl-CoA synthetase by Sp1 in neuroblastoma cells
Journal Article
·
Sun Dec 31 23:00:00 EST 2006
· Biochemistry
·
OSTI ID:930426
The pimeloyl-CoA synthetase BioW defines a new fold for adenylate-forming enzymes
Journal Article
·
Mon Apr 17 00:00:00 EDT 2017
· Nature Chemical Biology
·
OSTI ID:1373770
Transcriptional regulation of acetoacetyl-CoA synthetase by Sp1 in neuroblastoma cells
Journal Article
·
Sun Jan 14 23:00:00 EST 2018
· Biochemical and Biophysical Research Communications
·
OSTI ID:23100617