Dear all,

Please see the figure (surface1.tif) I deposited in dropbox (, Account, Password: pymolusers). A is taken from a literature, and B is prepared by myself. In A, the stick representation of the side chains of residues P3, D156, R97, etc., is wraped around in a representation that looks like having a transparent stereoscopic volume. I guess this represnetation is some kind of surface. However, in B, although I show the surface represnetation for residue E63, it looks like a curved surface locate aside E63 and doesn't wrap around the side chain of E63 as in A. Could anyone tell me how the effect of the surface representation (if I am correct) was prepared?

Best regards. 

Yeping Sun

Institute of Microbiology, Chinese Academy of Sciences