Title : Dissecting the effect of trifluoroethanol on ribonuclease A. Subtle structural changes detected by nonspecific proteases.

Pub. Date : 2002 Aug

PMID : 12153580






3 Functional Relationships(s)
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1 With the aim to distinguish between local and global conformational changes induced by trifluoroethanol in RNase A, spectroscopic and activity measurements in combination with proteolysis by unspecific proteases have been exploited for probing structural transitions of RNase A as a function of trifluoroethanol concentration. Trifluoroethanol ribonuclease A family member 1, pancreatic Homo sapiens
2 With the aim to distinguish between local and global conformational changes induced by trifluoroethanol in RNase A, spectroscopic and activity measurements in combination with proteolysis by unspecific proteases have been exploited for probing structural transitions of RNase A as a function of trifluoroethanol concentration. Trifluoroethanol ribonuclease A family member 1, pancreatic Homo sapiens
3 At > 30% (v/v) trifluoroethanol (pH 8.0; 25 degrees C), circular dichroism and fluorescence spectroscopy indicate a cooperative collapse of the tertiary structure of RNase A coinciding with the loss of its enzymatic activity. Trifluoroethanol ribonuclease A family member 1, pancreatic Homo sapiens