Dear Enrique, VOIDOO does what you want. http://xray.bmc.uu.se/usf/voidoo_man.html
Other similar programs are CAVENV in the CCP4 suite, and CAVER (http://loschmidt.chemi.muni.cz/caver/), which finds tunnels, and gives you tunnel radii. best wishes James Dr. James Murray Biochemistry Building Department of Biological Sciences Imperial College London London, SW7 2AZ Tel: +44 (0)20 7594 5276 Dr. James Murray Biochemistry Building Department of Biological Sciences Imperial College London London, SW7 2AZ Tel: +44 (0)20 7594 5276 -----Original Message----- From: CCP4 bulletin board on behalf of Enrique Rudiño-Piñera Sent: Fri 03/08/2007 16:53 To: CCP4BB@JISCMAIL.AC.UK Subject: [ccp4bb] Volume calculation of a crevice Dear All, I am wondering if you know a program to calculate the volume of a particular crevice in a PDB we are analysing. Thank you in advance! Enrique