2RVD

NMR STRUCTURE of A MUTANT OF CHIGNOLIN, CLN025

• PDB DOI: https://doi.org/10.2210/pdb2RVD/pdb
• BMRB: 20009

• Classification: DE NOVO PROTEIN
• Organism(s): synthetic construct
• Mutation(s): No 


• Deposited: 2015-07-14 Released: 2015-08-12 
• Deposition Author(s): Kato, Y., Ishimura, M., Honda, S.

---

Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 20 
• Selection Criteria: structures with the lowest energy 

Literature

Crystal structure of a ten-amino acid protein

Honda, S., Akiba, T., Kato, Y.S., Sawada, Y., Sekijima, M., Ishimura, M., Ooishi, A., Watanabe, H., Odahara, T., Harata, K.

(2008) J Am Chem Soc 130: 15327-15331

• PubMed: 18950166 
• DOI: https://doi.org/10.1021/ja8030533
• Primary Citation of Related Structures:  
  2RVD, 5AWL


• PubMed Abstract: 
  

  What is the smallest protein? This is actually not such a simple question to answer, because there is no established consensus among scientists as to the definition of a protein. We describe here a designed molecule consisting of only 10 amino acids. Despite its small size, its essential characteristics, revealed by its crystal structure, solution structure, thermal stability, free energy surface, and folding pathway network, are consistent with the properties of natural proteins. The existence of this kind of molecule deepens our understanding of proteins and impels us to define an "ideal protein" without inquiring whether the molecule actually occurs in nature.

---

Organizational Affiliation: 

National Institute of Advanced Industrial Science and Technology, 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: 1.29 kDa 
• Atom Count: 92 
• Modelled Residue Count: 10 
• Deposited Residue Count: 10 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
CLN025	A	10	synthetic construct	Mutation(s): 0

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 20 
• Selection Criteria: structures with the lowest energy 

Structure Validation

Entry History 

Deposition Data

• Released Date: 2015-08-12 
Deposition Author(s): Kato, Y., Ishimura, M., Honda, S.

Revision History  

• Version 1.0: 2015-08-12
  Type: Initial release
  
• Version 1.1: 2023-06-14
  Changes: Data collection, Database references, Other