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 

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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:  
    2M7C, 2M7D

  • 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. This represents the first successful circular permutation of any fold of less than 50-residue length ...

    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: 
(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Trp-Cage mini-proteinA21N/AMutation(s): 0 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
Protein Feature View
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  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
AIB
Query on AIB		A L-PEPTIDE LINKINGC4 H9 N O2ALA
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 40 
  • Conformers Submitted: 32 
  • Selection Criteria: structures with the lowest energy 
  • OLDERADO: 2M7C Olderado

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

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