4UOT

Thermodynamic hyperstability in parametrically designed helical bundles


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.69 Å
  • R-Value Free: 0.184 
  • R-Value Work: 0.178 
  • R-Value Observed: 0.178 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

High Thermodynamic Stability of Parametrically Designed Helical Bundles

Huang, P.Oberdorfer, G.Xu, C.Pei, X.Y.Nannenga, B.L.Rogers, J.M.Dimaio, F.Gonen, T.Luisi, B.Baker, D.

(2014) Science 346: 481

  • DOI: 10.1126/science.1257481
  • Primary Citation of Related Structures:  
    4TQL, 4UOS, 4UOT

  • PubMed Abstract: 
  • We describe a procedure for designing proteins with backbones produced by varying the parameters in the Crick coiled coil-generating equations. Combinatorial design calculations identify low-energy sequences for alternative helix supercoil arrangements, and the helices in the lowest-energy arrangements are connected by loop building ...

    We describe a procedure for designing proteins with backbones produced by varying the parameters in the Crick coiled coil-generating equations. Combinatorial design calculations identify low-energy sequences for alternative helix supercoil arrangements, and the helices in the lowest-energy arrangements are connected by loop building. We design an antiparallel monomeric untwisted three-helix bundle with 80-residue helices, an antiparallel monomeric right-handed four-helix bundle, and a pentameric parallel left-handed five-helix bundle. The designed proteins are extremely stable (extrapolated ΔGfold > 60 kilocalories per mole), and their crystal structures are close to those of the design models with nearly identical core packing between the helices. The approach enables the custom design of hyperstable proteins with fine-tuned geometries for a wide range of applications.


    Organizational Affiliation

    Howard Hughes Medical Institute, University of Washington, Seattle, WA 98195, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
DESIGNED HELICAL BUNDLE 5H2L ABCDE34synthetic constructMutation(s): 0 
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.69 Å
  • R-Value Free: 0.184 
  • R-Value Work: 0.178 
  • R-Value Observed: 0.178 
  • Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 55.4α = 90
b = 88.02β = 90
c = 103.71γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
iMOSFLMdata reduction
Aimlessdata scaling
PHASERphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2014-11-05
    Type: Initial release
  • Version 1.1: 2014-11-19
    Changes: Database references