John, You can use APBS in conjunction with PDB2PQR and PROPKA (all available from the ABPS website) for the calculations and Pymol for visualization.
Good luck Carsten -----Original Message----- From: CCP4 bulletin board [mailto:CCP4BB@JISCMAIL.AC.UK] On Behalf Of john peter Sent: Friday, August 19, 2011 2:35 PM To: CCP4BB@JISCMAIL.AC.UK Subject: [ccp4bb] Electostatic surface at various pH Hi All, Apologies for this slight off topic, however this could very well be the best bulletin board to seek help. I need to calculate the electrostatic surface and make surface figures for a protein at various pHs, say 4.0, 7.0 & 9.0. I'm doing this kind of wok for the first time. Could you suggest me a user-friendly software, tutorials and tips. Sincere thanks and appreciation. John
