Engineered symmetric connectivity of secondary structure elements highlights malleability of protein folding pathways.

Abstract excerpt

To understand the role of sequence connectivity in protein folding pathways, we explored by Phi-value analysis the folding pathway of an engineered circularly permuted PDZ domain. This variant has the same sequence connectivity as naturally occurring circularly permuted PDZ domains and displays a symmetrical distribution of secondary structure elements (i.e., beta beta alpha beta beta alpha beta beta) while...

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