5OM0

CH2 chimera of human 14-3-3 sigma with the Gli1 phosphopeptide around Ser640


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.20 Å
  • R-Value Free: 0.267 
  • R-Value Work: 0.215 
  • R-Value Observed: 0.220 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Chimeric 14-3-3 proteins for unraveling interactions with intrinsically disordered partners.

Sluchanko, N.N.Tugaeva, K.V.Greive, S.J.Antson, A.A.

(2017) Sci Rep 7: 12014-12014

  • DOI: 10.1038/s41598-017-12214-9
  • Primary Citation of Related Structures:  
    5OKF, 5OK9, 5OM0, 5OMA

  • PubMed Abstract: 
  • In eukaryotes, several "hub" proteins integrate signals from different interacting partners that bind through intrinsically disordered regions. The 14-3-3 protein hub, which plays wide-ranging roles in cellular processes, has been linked to numerous huma ...

    In eukaryotes, several "hub" proteins integrate signals from different interacting partners that bind through intrinsically disordered regions. The 14-3-3 protein hub, which plays wide-ranging roles in cellular processes, has been linked to numerous human disorders and is a promising target for therapeutic intervention. Partner proteins usually bind via insertion of a phosphopeptide into an amphipathic groove of 14-3-3. Structural plasticity in the groove generates promiscuity allowing accommodation of hundreds of different partners. So far, accurate structural information has been derived for only a few 14-3-3 complexes with phosphopeptide-containing proteins and a variety of complexes with short synthetic peptides. To further advance structural studies, here we propose a novel approach based on fusing 14-3-3 proteins with the target partner peptide sequences. Such chimeric proteins are easy to design, express, purify and crystallize. Peptide attachment to the C terminus of 14-3-3 via an optimal linker allows its phosphorylation by protein kinase A during bacterial co-expression and subsequent binding at the amphipathic groove. Crystal structures of 14-3-3 chimeras with three different peptides provide detailed structural information on peptide-14-3-3 interactions. This simple but powerful approach, employing chimeric proteins, can reinvigorate studies of 14-3-3/phosphoprotein assemblies, including those with challenging low-affinity partners, and may facilitate the design of novel biosensors.


    Organizational Affiliation

    York Structural Biology Laboratory, Department of Chemistry, University of York, York, YO10 5DD, United Kingdom.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
14-3-3 protein sigma,Zinc finger protein GLI1 AB248Homo sapiensMutation(s): 1 
Gene Names: SFNHME1GLI1GLI
Find proteins for P31947 (Homo sapiens)
Explore P31947 
Go to UniProtKB:  P31947
NIH Common Fund Data Resources
PHAROS:  P31947
Find proteins for P08151 (Homo sapiens)
Explore P08151 
Go to UniProtKB:  P08151
NIH Common Fund Data Resources
PHAROS:  P08151
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
SEP
Query on SEP
A,BL-PEPTIDE LINKINGC3 H8 N O6 PSER
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.20 Å
  • R-Value Free: 0.267 
  • R-Value Work: 0.215 
  • R-Value Observed: 0.220 
  • Space Group: P 64 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 110.426α = 90
b = 110.426β = 90
c = 174.114γ = 120
Software Package:
Software NamePurpose
BUSTERrefinement
XSCALEdata scaling
PDB_EXTRACTdata extraction
XDSdata reduction
MOLREPphasing

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Russian Science FoundationRussian Federation17-74-10053
Wellcome TrustUnited Kingdom101528
Wellcome TrustUnited Kingdom098230

Revision History 

  • Version 1.0: 2017-10-11
    Type: Initial release
  • Version 1.1: 2017-10-25
    Changes: Source and taxonomy