Catalysis of the refolding of urea denatured creatine kinase by peptidyl-prolyl cis-trans isomerase

Hai Peng Yang, Hai Ning Zhong, Hai Meng Zhou

Research output: Contribution to journalArticle

25 Scopus citations


The effect of peptidyl-prolyl cis-trans isomerase (PPIase) on the refolding and reactivation courses of urea-denatured creatine kinase was followed by fluorescence emission, ultraviolet difference spectra and recovery of activity. PPIase is shown to accelerate the slow-phasic reaction of the refolding of urea-denatured creatine kinase. The results suggest that the prolyl peptide bond isomerization may be one of the rate-determining steps in the refolding of creatine kinase.

Original languageEnglish (US)
Pages (from-to)147-150
Number of pages4
JournalBiochimica et Biophysica Acta - Protein Structure and Molecular Enzymology
Issue number2
StatePublished - Apr 4 1997



  • Creatine kinase
  • Peptidyl-prolyl isomerase
  • Refolding
  • Urea denaturation

ASJC Scopus subject areas

  • Biophysics
  • Structural Biology
  • Biochemistry
  • Molecular Biology

Cite this