From chemistry-request@ccl.net Mon Jun 29 14:46:49 1992 Date: Sun, 28 Jun 1992 12:41:20 +0200 From: Yves chapron To: "chemistry@ccl.net"@kth.sunet.se, martin@biokth.sunet.se Subject: Re: Cut offs. Status: RO Dear Martin, We are working on Gramicidine. We have added just a term as Roux did on the empirical energy function: E= S -1/2( q2 Ai/Ri4). That give the interaction energy of charge of the ion and the point dipoleinduced on the peptide atoms. For your problem may be you have interest to contact Tom Simonson in Yale (If still there): simonson@volta.biology.yale.edu If you got good answers please tell me the story ... good luke yves