3K7Z

GCN4-Leucine zipper core mutant as N16A trigonal automatic solution


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.259 
  • R-Value Work: 0.202 
  • R-Value Observed: 0.204 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Automated Protein Crystal Structure Determination Using Elves.

Holton, J.Alber, T.

(2004) Proc Natl Acad Sci U S A 101: 1537

  • DOI: https://doi.org/10.1073/pnas.0306241101
  • Primary Citation of Related Structures:  
    1RB4, 1RB5, 1RB6, 3K7Z

  • PubMed Abstract: 

    Efficient determination of protein crystal structures requires automated x-ray data analysis. Here, we describe the expert system ELVES and its use to determine automatically the structure of a 12-kDa protein. Multiwavelength anomalous diffraction analysis of a selenomethionyl derivative was used to image the Asn-16-Ala variant of the GCN4 leucine zipper. In contrast to the parallel, dimeric coiled coil formed by the WT sequence, the mutant unexpectedly formed an antiparallel trimer. This structural switch reveals how avoidance of core cavities at a single site can select the native fold of a protein. All structure calculations, including indexing, data processing, locating heavy atoms, phasing by multiwavelength anomalous diffraction, model building, and refinement, were completed without human intervention. The results demonstrate the feasibility of automated methods for determining high-resolution, x-ray crystal structures of proteins.


  • Organizational Affiliation

    Department of Molecular and Cell Biology, University of California, Berkeley, CA 94720-3206.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
General control protein GCN4
A, B, C
33N/AMutation(s): 1 
UniProt
Find proteins for P03069 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Explore P03069 
Go to UniProtKB:  P03069
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP03069
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.259 
  • R-Value Work: 0.202 
  • R-Value Observed: 0.204 
  • Space Group: P 31 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 89.943α = 90
b = 89.943β = 90
c = 46.481γ = 120
Software Package:
Software NamePurpose
SSRLdata collection
ELVESmodel building
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling
ELVESphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2009-11-24
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2021-10-13
    Changes: Database references
  • Version 1.3: 2024-02-21
    Changes: Data collection