Hello Again, The buried surface area is twice the interface area, because the interface is counted twice when working out the solvent accessible area which disappeared upon interfacing, once on molecule 1 and once on molecule 2. This is a matter of definition. While I prefer to quote the interface area, quite a number of people prefer the buried surface area. Either one should be alright, as long as you say clearly which one you are reporting.
Pierre ******************************************************** Dr. Pierre Rizkallah, Senior Lecturer in Structural Biology, WHRI, School of Medicine, Cardiff University, Heath Park, CF14 4XN email: [email protected] phone + 44 29 2074 2248 >>> Jane Bailey <[email protected]> 19/02/10 4:57 PM >>> Ed Pozharski wrote: > http://www.ebi.ac.uk/msd-srv/prot_int/pistart.html > > Try PISA server - it will identify contacts and report total buried > surface area per contact. > > On Fri, 2010-02-19 at 16:42 +0100, Jane Bailey wrote: > >> Dear all, >> >> I am trying to calculate the domain-domain contact surface from one >> chain. I see AREAIMOL to only tell you the accessible surface >> area/residue. Could any other software/webserve could specify residues >> in the contact surface and calculate the total contact area? >> >> Thanks >> >> J. >> > > > Dear all, Thanks very much for the answers. I managed to get the interface from PISA by assign two chain IDs onto two domains, as suggested by Pierre and Amy. It gave the interface Solvent-accessible area of each domain: 274.2, 312.2, but not the BSA. However I saw it gave the BSA of individual residue from the interface. Do people get the total interface BSA by adding them up? best Jane
