Submolecular cooperativity produces multi-state protein unfolding and refolding

S. Walter Englander, Leland Mayne, Jon N. Rumbley

Research output: Contribution to journalArticlepeer-review

35 Scopus citations

Abstract

Hydrogen exchange experiments show that cytochrome c and other proteins under native conditions reversibly unfold in a multi-step manner. The step from one intermediate to the next is determined by the intrinsically cooperative nature of secondary structural elements, which is retained in the native protein. Folding uses the same pathway in the reverse direction, moving from the unfolded to the native state through relatively discrete intermediate forms by the sequential addition of native-like secondary structural units.

Original languageEnglish (US)
Pages (from-to)57-65
Number of pages9
JournalBiophysical Chemistry
Volume101-102
DOIs
StatePublished - Dec 10 2002

Keywords

  • Hydrogen exchange
  • Protein cooperativity
  • Protein folding
  • Protein unfolding

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