1RB4

ANTIPARALLEL TRIMER OF GCN4-LEUCINE ZIPPER CORE MUTANT AS N16A TETRAGONAL AUTOMATIC SOLUTION


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.307 
  • R-Value Work: 0.202 

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.USA 101: 1537-1542

  • DOI: 10.1073/pnas.0306241101
  • Primary Citation of Related Structures:  1RB1, 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 an ...

    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.


    Related Citations: 
    • An Engineered Allosteric Switch in Leucine-Zipper Oligomerization
      Gonzalez Jr., L.,Plecs, J.J.,Alber, T.
      (1996) Nat.Struct.Mol.Biol. 3: 510
    • A Switch between Two-, Three-, and Four-Stranded Coiled Coils in GCN4 Leucine Zipper Mutants
      Harbury, P.B.,Zhang, T.,Kim, P.S.,Alber, T.
      (1993) Science 262: 1401
    • Crystal Structure of an Isoleucine-Zipper Trimer
      Harbury, P.B.,Kim, P.S.,Alber, T.
      (1994) Nature 371: 80
    • X-Ray Structure of the GCN4 Leucine Zipper, a two-stranded, parallel coiled coil.
      O'Shea, E.K.,Klemm, J.D.,Kim, P.S.,Alber, T.
      (1991) Science 254: 539


    Organizational Affiliation

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




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
General control protein GCN4
A, B, C
33Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Gene Names: GCN4 (AAS3, ARG9)
Find proteins for P03069 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P03069
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.307 
  • R-Value Work: 0.202 
  • Space Group: P 43 21 2
Unit Cell:
Length (Å)Angle (°)
a = 64.947α = 90.00
b = 64.947β = 90.00
c = 78.012γ = 90.00
Software Package:
Software NamePurpose
MOSFLMdata reduction
CCP4data scaling
REFMACrefinement
ELVESphasing
SCALAdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2003-11-01 
  • Released Date: 2004-01-13 
  • Deposition Author(s): Holton, J., Alber, T.

Revision History 

  • Version 1.0: 2004-01-13
    Type: Initial release
  • Version 1.1: 2008-04-29
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2017-10-11
    Type: Refinement description