1A38

14-3-3 PROTEIN ZETA BOUND TO R18 PEPTIDE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.35 Å
  • R-Value Free: 0.390 
  • R-Value Work: 0.330 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

14-3-3zeta binds a phosphorylated Raf peptide and an unphosphorylated peptide via its conserved amphipathic groove.

Petosa, C.Masters, S.C.Bankston, L.A.Pohl, J.Wang, B.Fu, H.Liddington, R.C.

(1998) J.Biol.Chem. 273: 16305-16310

  • Primary Citation of Related Structures:  1A37

  • PubMed Abstract: 
  • 14-3-3 proteins bind a variety of molecules involved in signal transduction, cell cycle regulation and apoptosis. 14-3-3 binds ligands such as Raf-1 kinase and Bad by recognizing the phosphorylated consensus motif, RSXpSXP, but must bind unphosphoryl ...

    14-3-3 proteins bind a variety of molecules involved in signal transduction, cell cycle regulation and apoptosis. 14-3-3 binds ligands such as Raf-1 kinase and Bad by recognizing the phosphorylated consensus motif, RSXpSXP, but must bind unphosphorylated ligands, such as glycoprotein Ib and Pseudomonas aeruginosa exoenzyme S, via a different motif. Here we report the crystal structures of the zeta isoform of 14-3-3 in complex with two peptide ligands: a Raf-derived phosphopeptide (pS-Raf-259, LSQRQRSTpSTPNVHMV) and an unphosphorylated peptide derived from phage display (R18, PHCVPRDLSWLDLEANMCLP) that inhibits binding of exoenzyme S and Raf-1. The two peptides bind within a conserved amphipathic groove on the surface of 14-3-3 at overlapping but distinct sites. The phosphoserine of pS-Raf-259 engages a cluster of basic residues (Lys49, Arg56, Arg60, and Arg127), whereas R18 binds via the amphipathic sequence, WLDLE, with its two acidic groups coordinating the same basic cluster. 14-3-3 is dimeric, and its two peptide-binding grooves are arranged in an antiparallel fashion, 30 A apart. The ability of each groove to bind different peptide motifs suggests how 14-3-3 can act in signal transduction by inducing either homodimer or heterodimer formation in its target proteins.


    Related Citations: 
    • 14-3-3Zeta Binds a Phosphorylated Raf Peptide and an Unphosphorylated Peptide Via its Conserved Amphipathic Groove
      Petosa, C.,Masters, S.C.,Bankston, L.A.,Pohl, J.,Wang, B.,Fu, H.,Liddington, R.C.
      (1998) J.Biol.Chem. 273: 16305


    Organizational Affiliation

    Department of Biochemistry, University of Leicester, Leicester LE1 7RH, United Kingdom.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
14-3-3 PROTEIN ZETA
A, B
245Bos taurusGene Names: YWHAZ
Find proteins for P63103 (Bos taurus)
Go to Gene View: YWHAZ
Go to UniProtKB:  P63103
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
R18 PEPTIDE (PHCVPRDLSWLDLEANMCLP)
P, Q
20N/AN/A
Protein Feature View is not available: No corresponding UniProt sequence found.
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.35 Å
  • R-Value Free: 0.390 
  • R-Value Work: 0.330 
  • Space Group: P 65
Unit Cell:
Length (Å)Angle (°)
a = 95.520α = 90.00
b = 95.520β = 90.00
c = 235.360γ = 120.00
Software Package:
Software NamePurpose
X-PLORrefinement
SCALEPACKdata scaling
X-PLORphasing
X-PLORmodel building
DENZOdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1999-03-02
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance