ISDA

Deposition Date 2015-07-14

Release Date 2015-08-12

Last Version Date 2024-05-15

Entry Detail

PDB ID:

2RVD

Keywords:

DE NOVO PROTEIN

Title:

NMR STRUCTURE of A MUTANT OF CHIGNOLIN, CLN025

Biological Source:

Source Organism:

synthetic construct (Taxon ID: 32630)

Method Details:

Experimental Method:

SOLUTION NMR

Conformers Calculated:

100

Conformers Submitted:

Selection Criteria:

structures with the lowest energy

Download Validation Report

Macromolecular Entities

Polymer Type:polypeptide(L)
Molecule:CLN025
Mutations:G1Y/G10Y
Chain IDs:A
Chain Length:10
Number of Molecules:1
Biological Source:synthetic construct

Ligand Molecules

Primary Citation

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

J.Am.Chem.Soc. 130 15327 15331 (2008)

PMID: 18950166 DOI: 10.1021/ja8030533

Abstact

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.

Legend

Protein

Chemical

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Primary Citation of related structures