5M37

The molecular tweezer CLR01 stabilizes a disordered protein-protein interface

  • Classification: HYDROLASE
  • Organism(s): Homo sapiens
  • Expression System: Escherichia coli
  • Mutation(s): No 

  • Deposited: 2016-10-14 Released: 2017-11-15 
  • Deposition Author(s): Bier, D., Ottmann, C.
  • Funding Organization(s): German Research Foundation, Netherlands Organisation for Scientific Research

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.35 Å
  • R-Value Free: 0.275 
  • R-Value Work: 0.222 
  • R-Value Observed: 0.225 

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Literature

The Molecular Tweezer CLR01 Stabilizes a Disordered Protein-Protein Interface.

Bier, D., Mittal, S., Bravo-Rodriguez, K., Sowislok, A., Guillory, X., Briels, J., Heid, C., Bartel, M., Wettig, B., Brunsveld, L., Sanchez-Garcia, E., Schrader, T., Ottmann, C.

(2017) J Am Chem Soc 139: 16256-16263

  • DOI: 10.1021/jacs.7b07939
  • Primary Citation of Related Structures:  
    5M35, 5M36, 5M37

  • PubMed Abstract: 

    • Protein regions that are involved in protein-protein interactions (PPIs) very often display a high degree of intrinsic disorder, which is reduced during the recognition process. A prime example is binding of the rigid 14-3-3 adapter proteins to their numerous partner proteins, whose recognition motifs undergo an extensive disorder-to-order transition ...

    Protein regions that are involved in protein-protein interactions (PPIs) very often display a high degree of intrinsic disorder, which is reduced during the recognition process. A prime example is binding of the rigid 14-3-3 adapter proteins to their numerous partner proteins, whose recognition motifs undergo an extensive disorder-to-order transition. In this context, it is highly desirable to control this entropy-costly process using tailored stabilizing agents. This study reveals how the molecular tweezer CLR01 tunes the 14-3-3/Cdc25CpS216 protein-protein interaction. Protein crystallography, biophysical affinity determination and biomolecular simulations unanimously deliver a remarkable finding: a supramolecular "Janus" ligand can bind simultaneously to a flexible peptidic PPI recognition motif and to a well-structured adapter protein. This binding fills a gap in the protein-protein interface, "freezes" one of the conformational states of the intrinsically disordered Cdc25C protein partner and enhances the apparent affinity of the interaction. This is the first structural and functional proof of a supramolecular ligand targeting a PPI interface and stabilizing the binding of an intrinsically disordered recognition motif to a rigid partner protein.

    Organizational Affiliation: 

    Department of Chemistry, University of Duisburg-Essen , Universitätsstrasse 7, 45117 Essen, Germany.



Macromolecules
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(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
14-3-3 protein zeta/deltaA, B230Homo sapiensMutation(s): 0 
Gene Names: YWHAZ
UniProt & NIH Common Fund Data Resources
Find proteins for P63104 (Homo sapiens)
Explore P63104 
Go to UniProtKB:  P63104
PHAROS:  P63104
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP63104
Protein Feature View
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  • Reference Sequence

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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
M-phase inducer phosphatase 3C, D20Homo sapiensMutation(s): 0 
Gene Names: CDC25C
EC: 3.1.3.48
UniProt & NIH Common Fund Data Resources
Find proteins for P30307 (Homo sapiens)
Explore P30307 
Go to UniProtKB:  P30307
PHAROS:  P30307
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP30307
Protein Feature View
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  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
SEP
Query on SEP		C, D L-PEPTIDE LINKINGC3 H8 N O6 PSER
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.35 Å
  • R-Value Free: 0.275 
  • R-Value Work: 0.222 
  • R-Value Observed: 0.225 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 71.17α = 90
b = 88.21β = 90
c = 112.59γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
XSCALEdata scaling
PHASERphasing
PDB_EXTRACTdata extraction
PHASERphasing
XDSdata reduction

Structure Validation

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Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
German Research FoundationGermanyCollaborative Research Centre 1093
Netherlands Organisation for Scientific ResearchNetherlands024.001.035
Netherlands Organisation for Scientific ResearchNetherlands016.150.366

Revision History  (Full details and data files)

  • Version 1.0: 2017-11-15
    Type: Initial release
  • Version 1.1: 2017-11-22
    Changes: Database references
  • Version 1.2: 2018-12-12
    Changes: Data collection, Derived calculations