@article{oai:ir.soken.ac.jp:00004147, author = {桑島, 邦博 and KUWAJIMA, Kunihiro and OKAYAMA, Naoki and YAMAMOTO, Kaori and ISHIHARA, Tsuyoshi and SUGAI, Shintaro}, issue = {1-2}, journal = {FEBS Letters, FEBS Letters}, month = {Sep}, note = {application/pdf, Kinetics of unfolding and refolding of a staphylococcal nuclease mutant, in which Pro117 is replaced by glycine, have been investigated by stopped-flow circular dichroism, and the results are compared with those for the wild-type protein. In contrast to the biphasic unfolding of the wild-type nuclease, the unfolding of the mutant is represented by a single-phase reaction, indicating that the biphasic unfolding for the wild-type protein is caused by cis-trans isomerization about the prolyl peptide bond in the native state. The proline mutation also simplifies the kinetic refolding. Importance of the results in elucidating the folding mechanism is discussed.}, pages = {135--138}, title = {The pro117 to glycine mutation of staphylococcal nuclease simplifies the unfolding folding kinetics}, volume = {290}, year = {1991} }