From chemistry-request-: at :-server.ccl.net Wed Apr 10 19:49:48 2002 Received: from mxout3.cac.washington.edu ([140.142.32.19]) by server.ccl.net (8.11.6/8.11.0) with ESMTP id g3ANnmp21237 for ; Wed, 10 Apr 2002 19:49:48 -0400 Received: from mailscan-out1.cac.washington.edu (mailscan-out1.cac.washington.edu [140.142.32.17]) by mxout3.cac.washington.edu (8.12.1+UW01.12/8.12.1+UW02.01) with SMTP id g3ANng8J010684 for ; Wed, 10 Apr 2002 16:49:42 -0700 Received: FROM dante30.u.washington.edu BY mailscan-out1.cac.washington.edu ; Wed Apr 10 16:49:41 2002 -0700 Received: from localhost (jzheng73 # - at - # localhost) by dante30.u.washington.edu (8.12.1+UW01.12/8.12.1+UW02.01) with ESMTP id g3ANnfBw102842 for ; Wed, 10 Apr 2002 16:49:41 -0700 Date: Wed, 10 Apr 2002 16:49:41 -0700 (PDT) From: "J. Zheng" To: chemistry -8 at 8- ccl.net Subject: reduced protein models In-Reply-To: <3CB4D01F.60000-: at :-iqc.udg.es> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Dear CCLer: I have a general question about the protein simulation. For protein simulation, force field is important issue. As I know as far, most of persons use different force fields such as Charmm, Gromas, Amber etc to describe different protein systems with all-atoms model. Sometimes protein is so huge that we have to consider another way to deal with it. For example, we introduce new algorithm (Cell multipole method, PPPM) to reduce computation time, or we resort to parallel program. I am curious that does anyone has develop the general force field (epslo, sigma, charge) for only 20 acid amio residues if we treat each residue as one atom. If yes, could you please give me a reference paper? Now I am working on one protein simulation. I was just thinking about which way I should go. I will appreciate for any suggestion. good day. jie ----------------------------------------------- | JIE ZHENG | | Department of Chemical Engineering | | University of Washington | | Seattle, WA 98105, USA | ----------------------------------------------- | Tel: (206) 616-6510 (o) | | Email: jzheng73[ AT ]u.washington.edu | | Webpg: students.washington.edu/jzheng73 | -----------------------------------------------