2M7D | pdb_00002m7d

Trp-cage 16b P12W: a Hyperstable Miniprotein

• PDB DOI: https://doi.org/10.2210/pdb2M7D/pdb
• BMRB: 19183

• Classification: DE NOVO PROTEIN
• Mutation(s): No 


• Deposited: 2013-04-19 Released: 2013-12-25 
• Deposition Author(s): Williams, D.V., Andersen, N.H., Kier, B.L.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 50 
• Conformers Submitted: 30 
• Selection Criteria: structures with the lowest energy 

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

• PubMed: 24376912 
• DOI: https://doi.org/10.1039/C3RA43674H
• Primary Citation 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. As was observed for the original topology, a hydrophobic staple near the chain termini is required for enhanced fold stability.

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Organizational Affiliation: 
• Department of Chemistry, University of Washington Seattle, Washington, 98195, USA [e-mail].

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 2.13 kDa 
• Atom Count: 152 
• Modeled Residue Count: 20 
• Deposited Residue Count: 20 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Trp-Cage mini-protein	A	20	N/A	Mutation(s): 0

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 50 
• Conformers Submitted: 30 
• Selection Criteria: structures with the lowest energy 

Structure Validation

Entry History 

Deposition Data

• Released Date: 2013-12-25 
Deposition Author(s): Williams, D.V., Andersen, N.H., Kier, B.L.

Revision History  

• Version 1.0: 2013-12-25
  Type: Initial release
  
• Version 1.1: 2014-01-15
  Changes: Database references
• Version 1.2: 2024-11-06
  Changes: Data collection, Database references, Derived calculations, Structure summary