4WD1

Acetoacetyl-CoA Synthetase from Streptomyces lividans


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.903 Å
  • R-Value Free: 0.194 
  • R-Value Work: 0.161 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The structure of S. lividans acetoacetyl-CoA synthetase shows a novel interaction between the C-terminal extension and the N-terminal domain.

Mitchell, C.A.Tucker, A.C.Escalante-Semerena, J.C.Gulick, A.M.

(2015) Proteins 83: 575-581

  • DOI: 10.1002/prot.24738

  • PubMed Abstract: 
  • 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. Thes ...

    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. 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. 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.


    Organizational Affiliation

    Hauptman-Woodward Institute, Buffalo, New York, 14203; Department of Structural Biology, University at Buffalo, Buffalo, New York, 14203.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Acetoacetate-CoA ligase
A
658Streptomyces lividans TK24Mutation(s): 0 
Gene Names: acsA1
EC: 6.2.1.1
Find proteins for D6EQU8 (Streptomyces lividans TK24)
Go to UniProtKB:  D6EQU8
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CA
Query on CA

Download SDF File 
Download CCD File 
A
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
EDO
Query on EDO

Download SDF File 
Download CCD File 
A
1,2-ETHANEDIOL
ETHYLENE GLYCOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.903 Å
  • R-Value Free: 0.194 
  • R-Value Work: 0.161 
  • Space Group: P 31 2 1
Unit Cell:
Length (Å)Angle (°)
a = 104.408α = 90.00
b = 104.408β = 90.00
c = 133.906γ = 120.00
Software Package:
Software NamePurpose
HKL-2000data scaling
PHENIXrefinement
PHENIXphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute of General Medical SciencesUnited StatesGM068440

Revision History 

  • Version 1.0: 2015-01-28
    Type: Initial release
  • Version 1.1: 2015-02-25
    Type: Database references
  • Version 1.2: 2017-09-20
    Type: Author supporting evidence, Database references, Derived calculations, Other, Refinement description, Source and taxonomy, Structure summary