1QYS

Crystal structure of Top7: A computationally designed protein with a novel fold


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.293 
  • R-Value Work: 0.268 
  • R-Value Observed: 0.268 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Design of a Novel Globular Protein Fold with Atomic-Level Accuracy

Kuhlman, B.Dantas, G.Ireton, G.C.Varani, G.Stoddard, B.L.Baker, D.

(2003) Science 302: 1364-1368

  • DOI: 10.1126/science.1089427
  • Primary Citation of Related Structures:  
    1QYS

  • PubMed Abstract: 
  • A major challenge of computational protein design is the creation of novel proteins with arbitrarily chosen three-dimensional structures. Here, we used a general computational strategy that iterates between sequence design and structure prediction to ...

    A major challenge of computational protein design is the creation of novel proteins with arbitrarily chosen three-dimensional structures. Here, we used a general computational strategy that iterates between sequence design and structure prediction to design a 93-residue alpha/beta protein called Top7 with a novel sequence and topology. Top7 was found experimentally to be folded and extremely stable, and the x-ray crystal structure of Top7 is similar (root mean square deviation equals 1.2 angstroms) to the design model. The ability to design a new protein fold makes possible the exploration of the large regions of the protein universe not yet observed in nature.


    Organizational Affiliation

    Department of Biochemistry, University of Washington, Seattle, WA 98195, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
TOP7A106N/AMutation(s): 0 
Protein Feature View
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  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
AL-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.293 
  • R-Value Work: 0.268 
  • R-Value Observed: 0.268 
  • Space Group: P 32 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 35.9α = 90
b = 35.9β = 90
c = 140.554γ = 120
Software Package:
Software NamePurpose
CNSrefinement
HKL-2000data reduction
SCALEPACKdata scaling
CNSphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-11-25
    Type: Initial release
  • Version 1.1: 2008-04-29
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance