ArticleBiophysical journal2017
Unfolding of CPR3 Gets Initiated at the Active Site and Proceeds via Two Intermediates.
Article in Biophysical journal, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed, 6 citations in OpenAlex.
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6 authors at 3 institutions in 1 country.
Funding
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Abstract
Cyclophilin catalyzes the ubiquitous process "peptidyl-prolyl cis-trans isomerization," which plays a key role in protein folding, regulation, and function. Here, we present a detailed characterization of the unfolding of yeast mitochondrial cyclophilin (CPR3) induced by urea. It is seen that CPR3 unfolding is reversible and proceeds via two intermediates, I1 and I2. The I1 state has native-like secondary structure and shows strong anilino-8-naphthalenesulphonate binding due to increased exposure of the solvent-accessible cluster of non-polar groups. Thus, it has some features of a molten globule. The I2 state is more unfolded, but it retains some residual secondary structure, and shows weak anilino-8-naphthalenesulphonate binding. Chemical shift perturbation analysis by
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