From chemistry-request&$at$&server.ccl.net Wed Apr 24 11:02:27 2002 Received: from smtp9.jaring.my ([61.6.32.59]) by server.ccl.net (8.11.6/8.11.0) with ESMTP id g3OF2QA26965 for ; Wed, 24 Apr 2002 11:02:26 -0400 Received: from vplaces.net (j125.crc20.jaring.my [61.6.157.139]) by smtp9.jaring.my (8.11.4/8.11.4) with ESMTP id g3OF2Ed25696 for ; Wed, 24 Apr 2002 23:02:15 +0800 (MYT) Message-ID: <3CC6C9FC.484B2B39 # - at - # vplaces.net> Date: Wed, 24 Apr 2002 23:06:36 +0800 From: Rowyna X-Mailer: Mozilla 4.75 [en] (Win98; U) X-Accept-Language: en,pdf MIME-Version: 1.0 To: CCL Subject: change upon binding Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Dear CCLers, I have a question regarding Autodock. I had a crystalised protein-ligand complex, in which I took out the ligand and docked it with Autodock. THe results have been consistent with the crystal structure. But when I used a different ligand for docking, the results are not quite as expected. I believe that the conformation of the binding site has been shifted favourable to the original ligand and so therefore, as autodock treats the protein rigid, the prediction of the interactions with a different ligand is not a good. Has anybody been through this sort of problem? I'd love to hear some opinions on it. Actually, I'd like to find out how the binding of the another ligand affects the conformation of the binding site, and I can't quite do it with autodock. So, I am giving molecular dynamics a try. If there's somebody who encountered something like this before, would be glad to hear your input. I've learned a lot from the mailing list so I thank all of you for your help. Rowyna K.