Towards the complete structural characterization of a protein folding pathway: the structures of the denatured, transition and native states for the association/folding of two complementary fragments of cleaved chymotrypsin inhibitor 2. Direct evidence for a nucleation-condensation mechanism
Neira, J.L., Davis, B., Ladurner, A.G., Buckle, A.M., Gay Gde, P., Fersht, A.R.(1996) Structure 1: 189-208
- PubMed: 9079381 
- DOI: https://doi.org/10.1016/s1359-0278(96)00031-4
- Primary Citation of Related Structures:  
1CIQ, 1CIR - PubMed Abstract: 
Single-module proteins, such as chymotrypsin inhibitor 2 (CI2), fold as a single cooperative unit. To solve its folding pathway, we must characterize, under conditions that favour folding, its denatured state, its transition state, and its final folded structure. To obtain a "denatured state' that can readily be thus characterized, we have used a trick of cleaving CI2 into two complementary fragments that associate and fold in a similar way to intact protein.
Organizational Affiliation: 
MRC Unit for Protein Function and Design, Cambridge Centre for Protein Engineering, UK.