AMBER Archive (2007)Subject: RE: AMBER: Attaching capping groups
From: Ross Walker (ross_at_rosswalker.co.uk)
Date: Wed Apr 11 2007 - 22:49:36 CDT
Dear Neelanjana,
$AMBERHOME/exe/tleap -s -f $AMBERHOME/dat/leap/cmd/leaprc.ff99SB
mol = sequence { ACE ALA NME }
saveamberparm mol prmtop inpcrd
will accomplish what you want to do.
Good luck...
Ross
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From: owner-amber_at_scripps.edu [mailto:owner-amber_at_scripps.edu] On Behalf Of
Neelanjana Sengupta
Sent: Wednesday, April 11, 2007 18:29
To: amber_at_scripps.edu
Subject: AMBER: Attaching capping groups
Hi,
I want to create alanine dipeptide by including the capping groups ACE and
CTE (see below) to the N-terminus and C-terminus of alanine. Do I need to
modify the leaprc file for this?
I am using amber7. I could not identify suitable terminal groups in the
all_aminoct94.lib and all_aminont94.lib.
Some advice is greatly appreciated.
'ACE' is (C=O)-(CH3)
'CTE' is (CH3)-(NH)
Thanks,
--
****************************************
Neelanjana Sengupta, PhD student
Dept. of Chemistry
Univ. of California-Irvine
Irvine, CA 92697
USA
Phone: 1-949-824 9921
email: sengupta_at_uci.edu
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