1UAO | pdb_00001uao

NMR Structure of designed protein, Chignolin, consisting of only ten amino acids (Ensembles)

• PDB DOI: https://doi.org/10.2210/pdb1UAO/pdb
• BMRB: 5694

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


• Deposited: 2003-03-13 Released: 2004-04-13 
• Deposition Author(s): Honda, S., Yamasaki, K.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 50 
• Conformers Submitted: 18 
• Selection Criteria: structures with the lowest energy 

Literature

10 residue folded peptide designed by segment statistics

Honda, S., Yamasaki, K., Sawada, Y., Morii, H.

(2004) Structure 12: 1507-1518

• PubMed: 15296744 
• DOI: https://doi.org/10.1016/j.str.2004.05.022
• Primary Citation Related Structures: 
  1UAO


• PubMed Abstract: 
  

  We have designed a peptide termed chignolin, consisting of only 10 amino acid residues (GYDPETGTWG), on the basis of statistics derived from more than 10,000 protein segments. The peptide folds into a unique structure in water and shows a cooperative thermal transition, both of which may be hallmarks of a protein. Also, the experimentally determined beta-hairpin structure was very close to what we had targeted. The performance of the short peptide not only implies that the methodology employed here can contribute toward development of novel techniques for protein design, but it also yields insights into the raison d'etre of an autonomous element involved in a natural protein. This is of interest for the pursuit of folding mechanisms and evolutionary processes of proteins.

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Organizational Affiliation: 
• National Institute of Advanced Industrial Science and Technology, AIST Central 6, Tsukuba 305-8566, Japan. [e-mail]

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 1.08 kDa 
• Atom Count: 77 
• Modeled Residue Count: 10 
• Deposited Residue Count: 10 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Chignolin	A	10	N/A	Mutation(s): 0

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 50 
• Conformers Submitted: 18 
• Selection Criteria: structures with the lowest energy 

Structure Validation

Entry History 

Deposition Data

• Released Date: 2004-04-13 
Deposition Author(s): Honda, S., Yamasaki, K.

Revision History  

• Version 1.0: 2004-04-13
  Type: Initial release
  
• Version 1.1: 2008-04-27
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2015-08-26
  Changes: Database references
• Version 1.4: 2023-12-27
  Changes: Data collection, Database references