2BTP

14-3-3 Protein Theta (Human) Complexed to Peptide


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.8 Å
  • R-Value Free: 0.259 
  • R-Value Work: 0.206 

wwPDB Validation 3D Report Full Report


This is version 1.5 of the entry. See complete history

Literature

Structural Basis for Protein-Protein Interactions in the 14-3-3 Protein Family.

Yang, X.Lee, W.H.Sobott, F.Papagrigoriou, E.Robinson, C.V.Grossmann, J.G.Sundstrom, M.Doyle, D.A.Elkins, J.M.

(2006) Proc.Natl.Acad.Sci.USA 103: 17237

  • DOI: 10.1073/pnas.0605779103
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The seven members of the human 14-3-3 protein family regulate a diverse range of cell signaling pathways by formation of protein-protein complexes with signaling proteins that contain phosphorylated Ser/Thr residues within specific sequence motifs. P ...

    The seven members of the human 14-3-3 protein family regulate a diverse range of cell signaling pathways by formation of protein-protein complexes with signaling proteins that contain phosphorylated Ser/Thr residues within specific sequence motifs. Previously, crystal structures of three 14-3-3 isoforms (zeta, sigma, and tau) have been reported, with structural data for two isoforms deposited in the Protein Data Bank (zeta and sigma). In this study, we provide structural detail for five 14-3-3 isoforms bound to ligands, providing structural coverage for all isoforms of a human protein family. A comparative structural analysis of the seven 14-3-3 proteins revealed specificity determinants for binding of phosphopeptides in a specific orientation, target domain interaction surfaces and flexible adaptation of 14-3-3 proteins through domain movements. Specifically, the structures of the beta isoform in its apo and peptide bound forms showed that its binding site can exhibit structural flexibility to facilitate binding of its protein and peptide partners. In addition, the complex of 14-3-3 beta with the exoenzyme S peptide displayed a secondary structural element in the 14-3-3 peptide binding groove. These results show that the 14-3-3 proteins are adaptable structures in which internal flexibility is likely to facilitate recognition and binding of their interaction partners.


    Organizational Affiliation

    Structural Genomics Consortium, University of Oxford, Botnar Research Centre, Oxford OX3 7LD, United Kingdom.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
14-3-3 PROTEIN TAU
A, B
256Homo sapiensGene Names: YWHAQ
Find proteins for P27348 (Homo sapiens)
Go to Gene View: YWHAQ
Go to UniProtKB:  P27348
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
CONSENSUS PEPTIDE FOR 14-3-3 PROTEINS
P, Q
6N/A
Protein Feature View is not available: No corresponding UniProt sequence found.
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
SEP
Query on SEP
P, Q
L-PEPTIDE LINKINGC3 H8 N O6 PSER
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.8 Å
  • R-Value Free: 0.259 
  • R-Value Work: 0.206 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 61.307α = 90.00
b = 85.964β = 112.67
c = 64.666γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
SCALAdata scaling
PHASERphasing
MOSFLMdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2005-06-28
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2017-05-24
    Type: Structure summary
  • Version 1.4: 2018-01-31
    Type: Source and taxonomy
  • Version 1.5: 2018-04-04
    Type: Data collection