2CNR

Structural studies on the interaction of ScFAS ACP with ACPS


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 20 
  • Selection Criteria: LOWEST ENERGY, LEAST VIOLATION 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure and Malonyl Coa-Acp Transacylase Binding of Streptomyces Coelicolor Fatty Acid Synthase Acyl Carrier Protein.

Arthur, C.J.Williams, C.Pottage, K.Ploskon, E.Findlow, S.C.Burston, S.G.Simpson, T.J.Crump, M.P.Crosby, J.

(2009) Acs Chem.Biol. 4: 625

  • DOI: 10.1021/cb900099e

  • PubMed Abstract: 
  • Malonylation of an acyl carrier protein (ACP) by malonyl Coenzyme A-ACP transacylase (MCAT) is fundamental to bacterial fatty acid biosynthesis. Here, we report the structure of the Steptomyces coelicolor (Sc) fatty acid synthase (FAS) ACP and studie ...

    Malonylation of an acyl carrier protein (ACP) by malonyl Coenzyme A-ACP transacylase (MCAT) is fundamental to bacterial fatty acid biosynthesis. Here, we report the structure of the Steptomyces coelicolor (Sc) fatty acid synthase (FAS) ACP and studies of its binding to MCAT. The carrier protein adopts an alpha-helical bundle structure common to other known carrier proteins. The Sc FAS ACP shows close structural homology with other fatty acid ACPs and less similarity with Sc actinorhodin (act) polyketide synthase (PKS) ACP where the orientation of helix I differs. NMR experiments were used to map the binding of ACP to MCAT. This data suggests that Sc FAS ACP interacts with MCAT through the negatively charged helix II of ACP, consistent with proposed models for ACP recognition by other FAS enzymes. Differential roles for residues at the interface are demonstrated using site-directed mutagenesis and in vitro assays. MCAT has been suggested, moreover, to participate in bacterial polyketide synthesis in vivo. We demonstrate that the affinity of the polyketide synthase ACP for MCAT is lower than that of the FAS ACP. Mutagenesis of homologous helix II residues on the polyketide synthase ACP suggests that the PKS ACP may bind to MCAT in a different manner than the FAS counterpart.


    Organizational Affiliation

    School of Chemistry, University of Bristol, Cantock's Close, Bristol BS8 1TS, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
ACYL CARRIER PROTEIN
A
82Streptomyces coelicolorMutation(s): 0 
Gene Names: acpP
Find proteins for P72393 (Streptomyces coelicolor)
Go to UniProtKB:  P72393
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 20 
  • Selection Criteria: LOWEST ENERGY, LEAST VIOLATION 
  • Olderado: 2CNR Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2007-06-05
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance