[PyMOL] Display electrostatic potential at different pH

Hi Pymoler, I want to present a structure to non-structural biologist. They want to visualize the change of surface charge at different pH.  For example, Histidine will have different protonation state at pH 7.5 and 5.  What would be the best way to visualize this?  I know an accurate calculati

[PyMOL] Pymol version compatiblity

ok to open 1.4 version .pse in Pymol 1.5, but we had problems to open 1.5 version .pse in pymol 1.4.  How can I save files in Pymol 1.5 so that they will be readable in both 1.4 and 1.5 versions. Thanks in advance. Xiaoshan Min Amgen San Francisco