1W96

Crystal Structure of Biotin Carboxylase Domain of Acetyl-coenzyme A Carboxylase from Saccharomyces cerevisiae in Complex with Soraphen A


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.230 
  • R-Value Work: 0.195 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

A Mechanism for the Potent Inhibition of Eukaryotic Acetyl-Coenzyme a Carboxylase by Soraphen A, a Macrocyclic Polyketide Natural Product

Shen, Y.Volrath, S.L.Weatherly, S.C.Elich, T.D.Tong, L.

(2004) Mol.Cell 16: 881

  • DOI: 10.1016/j.molcel.2004.11.034
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Acetyl-coenzyme A carboxylases (ACCs) have crucial roles in fatty acid metabolism. Soraphen A, a macrocyclic polyketide natural product, is a nanomolar inhibitor against the biotin carboxylase (BC) domain of human, yeast, and other eukaryotic ACCs. H ...

    Acetyl-coenzyme A carboxylases (ACCs) have crucial roles in fatty acid metabolism. Soraphen A, a macrocyclic polyketide natural product, is a nanomolar inhibitor against the biotin carboxylase (BC) domain of human, yeast, and other eukaryotic ACCs. Here we report the crystal structures of the yeast BC domain, alone and in complex with soraphen A. Soraphen has extensive interactions with an allosteric site, about 25 A from the active site. The specificity of soraphen is explained by large structural differences between the eukaryotic and prokaryotic BC in its binding site, confirmed by our studies on the effects of single-site mutations in this binding site. Unexpectedly, our structures suggest that soraphen may bind in the BC dimer interface and inhibit the BC activity by disrupting the oligomerization of this domain. Observations from native gel electrophoresis confirm this structural insight. The structural information provides a foundation for structure-based design of new inhibitors against these enzymes.


    Organizational Affiliation

    Department of Biological Sciences, Columbia University, New York, NY 10027, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
ACETYL-COENZYME A CARBOXYLASE
A, B, C
554Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: ACC1 (ABP2, FAS3, MTR7)
EC: 6.4.1.2
Find proteins for Q00955 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  Q00955
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
S1A
Query on S1A

Download SDF File 
Download CCD File 
A, B, C
SORAPHEN A
C29 H44 O8
WPMGNXPRKGXGBO-OFQQMTDKSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
S1AKd: ~3.9 nM BINDINGMOAD
S1AKd: 3.9 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.230 
  • R-Value Work: 0.195 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 63.830α = 90.00
b = 96.520β = 96.82
c = 139.950γ = 90.00
Software Package:
Software NamePurpose
HKLdata reduction
CNSrefinement
HKLdata scaling
SOLVE/RESOLVEphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2005-01-04
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance