3E6Y

Structure of 14-3-3 in complex with the differentiation-inducing agent Cotylenin A


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.285 
  • R-Value Work: 0.195 
  • R-Value Observed: 0.200 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

A structural rationale for selective stabilization of anti-tumor interactions of 14-3-3 proteins by cotylenin A

Ottmann, C.Weyand, M.Sassa, T.Inoue, T.Kato, N.Wittinghofer, A.Oecking, C.

(2009) J Mol Biol 386: 913-919

  • DOI: 10.1016/j.jmb.2009.01.005
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • Cotylenin A, a fungal metabolite originally described as a cytokinin-like bioactive substance against plants shows differentiation-inducing and anti-tumor activity in certain human cancers. Here, we present the crystal structure of cotylenin A acting ...

    Cotylenin A, a fungal metabolite originally described as a cytokinin-like bioactive substance against plants shows differentiation-inducing and anti-tumor activity in certain human cancers. Here, we present the crystal structure of cotylenin A acting on a 14-3-3 regulatory protein complex. By comparison with the closely related, but non-anticancer agent fusicoccin A, a rationale for the activity of cotylenin A in human cancers is presented. This class of fusicoccane diterpenoids are possible general modulators of 14-3-3 protein-protein interactions. In this regard, specificities for individual 14-3-3/target protein complexes might be achieved by varying the substituent pattern of the diterpene ring system. As the different activities of fusicoccin A and cotylenin A in human cancers suggest, hydroxylation of C12 might be a sufficient determinant of structural specificity.


    Organizational Affiliation

    Chemical Genomics Centre, Max Planck Society, Dortmund, Germany. christian.ottmann@cgc.mpg.de



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
14-3-3-like protein CA, B260Nicotiana tabacumMutation(s): 0 
Find proteins for P93343 (Nicotiana tabacum)
Explore P93343 
Go to UniProtKB:  P93343
Protein Feature View
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  • Reference Sequence
  • Find similar proteins by: Sequence   |   Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
H+-ATPase phosphopeptide QSYpTVC, D5N/AMutation(s): 0 
Find proteins for Q40409 (Nicotiana plumbaginifolia)
Explore Q40409 
Go to UniProtKB:  Q40409
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CW1
Query on CW1

Download CCD File 
A, B
Cotylenin A
C34 H52 O12
CNGPQGIMXIOGEW-PHTTWUKLSA-N
 Ligand Interaction
CL
Query on CL

Download CCD File 
A
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
TPO
Query on TPO
C,DL-PEPTIDE LINKINGC4 H10 N O6 PTHR
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
CW1Kd :  2500   nM  PDBBind
CW1Kd:  2500   nM  Binding MOAD
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.285 
  • R-Value Work: 0.195 
  • R-Value Observed: 0.200 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 41.8α = 90
b = 141.9β = 114.1
c = 51.4γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata reduction
XSCALEdata scaling
MOLREPphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2009-03-10
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Advisory, Version format compliance
  • Version 1.2: 2017-10-25
    Changes: Refinement description