2M7C

Circular Permutation of the Trp-cage: Fold Rescue upon Addition of a Hydrophobic Staple

Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 40 
  • Conformers Submitted: 32 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history. 

Literature

Circular Permutation of the Trp-cage: Fold Rescue upon Addition of a Hydrophobic Staple.

Byrne, A., Kier, B.L., Williams, D.V., Scian, M., Andersen, N.H.

(2013) RSC Adv 2013: 19824-19829

  • DOI: 10.1039/C3RA43674H
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    • The Trp-cage, at 20 residues in length, is generally acknowledged as the smallest fully protein-like folding motif. Linking the termini by a two-residue unit and excising one residue affords circularly permuted sequences that adopt the same structure ...

    The Trp-cage, at 20 residues in length, is generally acknowledged as the smallest fully protein-like folding motif. Linking the termini by a two-residue unit and excising one residue affords circularly permuted sequences that adopt the same structure. This represents the first successful circular permutation of any fold of less than 50-residue length. As was observed for the original topology, a hydrophobic staple near the chain termini is required for enhanced fold stability.

    Organizational Affiliation: 

    Department of Chemistry, University of Washington Seattle, Washington, 98195, USA andersen@chem.washington.edu.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Trp-Cage mini-protein
A
21N/AMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.
Small Molecules
Modified Residues  2 Unique
IDChainsTypeFormula2D DiagramParent
AIB
Query on AIB
A
L-PEPTIDE LINKINGC4 H9 N O2ALA
DAL
Query on DAL
A
D-PEPTIDE LINKINGC3 H7 N O2

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Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 40 
  • Conformers Submitted: 32 
  • Selection Criteria: structures with the lowest energy 

Structure Validation

View Full Validation Report or Ramachandran Plots


View more in-depth experimental data

Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-12-25
    Type: Initial release
  • Version 1.1: 2014-01-15
    Type: Database references