AMBER Archive (2005)Subject: AMBER: Sander.LES questions
From: Bing Liu (bliu999_at_yahoo.com)
Date: Tue Dec 20 2005 - 08:51:09 CST
Dear Amber,
I try to simulate a protein using Amber 8. This protein has a helix contains 16 residues. That helix orients a quite different position compared with WT because of a single point mutation. I simulated the WT and mutant using both GB and TIP3P model of sander at 310K, but the helix of mutant didn¡¯t make any dramatic move just like that of WT. Then, I try to simulate that phenomenon using sander.LES, but unfortunately, both WT and mutant moved significantly. That wasn¡¯t I wanted. The fact is only the helix of mutant make a large movement. How can I modify the parameters to simulate the fact? I define a region every 3 residues of that helix, 5 copies for each region, using GB model at 310K by sander.LES.
Your help will be much appreciated! Thanks a lot!
Bing Liu
McGill University
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