GCN4pLI derivative with alpha/beta/cyclic-gamma amino acid substitution pattern

Experimental Data Snapshot

  • Resolution: 1.25 Å
  • R-Value Free: 0.191 
  • R-Value Work: 0.139 
  • R-Value Observed: 0.142 

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This is version 2.0 of the entry. See complete history


Differential Impact of beta and gamma Residue Preorganization on alpha / beta / gamma-Peptide Helix Stability in Water.

Shin, Y.H.Mortenson, D.E.Satyshur, K.A.Forest, K.T.Gellman, S.H.

(2013) J Am Chem Soc 135: 8149-8152

  • DOI: https://doi.org/10.1021/ja403319q
  • Primary Citation of Related Structures:  
    4HJB, 4HJD

  • PubMed Abstract: 

    Cyclic constraints have proven to be very effective for preorganizing β-amino acid residues and thereby stabilizing β- and α/β-peptide helices, but little is known about possible preorganization effects among γ residues. Here we assess and compare the impact of cyclic preorganization of β and γ residues in the context of a specific α/β/γ-peptide helix. The results show that β residue preorganization is critical for helix stability but that γ residue preorganization is less important.

  • Organizational Affiliation

    Department of Chemistry and ‡Department of Bacteriology, University of Wisconsin-Madison , Madison, Wisconsin 53706, United States.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
GCN4pLI(alpha/beta/cyclic-gamma)A [auth C],
B [auth A],
C [auth B],
33N/AMutation(s): 0 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 1.25 Å
  • R-Value Free: 0.191 
  • R-Value Work: 0.139 
  • R-Value Observed: 0.142 
  • Space Group: P 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 34.19α = 90
b = 46.29β = 91.27
c = 34.88γ = 90
Software Package:
Software NamePurpose
PDB_EXTRACTdata extraction
EMBLdata collection
XDSdata reduction
XSCALEdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2013-06-12
    Type: Initial release
  • Version 1.1: 2014-02-19
    Changes: Database references
  • Version 1.2: 2023-09-20
    Changes: Data collection, Database references, Derived calculations, Refinement description
  • Version 2.0: 2023-11-15
    Changes: Atomic model, Data collection, Derived calculations