1A4O

14-3-3 PROTEIN ZETA ISOFORM

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.345 
  • R-Value Work: 0.310 
  • R-Value Observed: 0.310 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history. 


Literature

Crystal structure of the zeta isoform of the 14-3-3 protein.

Liu, D., Bienkowska, J., Petosa, C., Collier, R.J., Fu, H., Liddington, R.

(1995) Nature 376: 191-194

  • DOI: 10.1038/376191a0
  • Primary Citation of Related Structures:  
    1A4O

  • PubMed Abstract: 

    • The 14-3-3 family of proteins have recently been identified as regulatory elements in intracellular signalling pathways: 14-3-3 proteins bind to oncogene and proto-oncogene products, including c-Raf-1 (refs 2-5), c-Bcr (ref. 6) and polyomavirus middle-T antigen; overexpression of 14-3-3 activates Raf kinase in yeast and induces meiotic maturation in Xenopus oocytes ...

    The 14-3-3 family of proteins have recently been identified as regulatory elements in intracellular signalling pathways: 14-3-3 proteins bind to oncogene and proto-oncogene products, including c-Raf-1 (refs 2-5), c-Bcr (ref. 6) and polyomavirus middle-T antigen; overexpression of 14-3-3 activates Raf kinase in yeast and induces meiotic maturation in Xenopus oocytes. Here we report the crystal structure of the major isoform of mammalian 14-3-3 proteins at 2.9 A resolution. Each subunit of the dimeric protein consists of a bundle of nine antiparallel helices that form a palisade around an amphipathic groove. The groove is large enough to accommodate a tenth helix, and we propose that binding to an amphipathic helix represents a general mechanism for the interaction of 14-3-3 with diverse cellular proteins. The residues in the dimer interface and the putative ligand-binding surface are invariant among vertebrates, yeast and plants, suggesting a conservation of structure and function throughout the 14-3-3 family.

    Organizational Affiliation: 

    Dana-Farber Cancer Institute, Boston, Massachusetts 02115, USA.



Macromolecules
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(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
14-3-3 PROTEIN ZETAA, B, C, D245Bos taurusMutation(s): 0 
Gene Names: YWHAZ
UniProt
Find proteins for P63103 (Bos taurus)
Explore P63103 
Go to UniProtKB:  P63103
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP63103
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.345 
  • R-Value Work: 0.310 
  • R-Value Observed: 0.310 
  • Space Group: P 65
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 94.9α = 90
b = 94.9β = 90
c = 236.7γ = 120
Software Package:
Software NamePurpose
X-PLORrefinement
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

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