AMBER Archive (2005)

Subject: Re: AMBER: Sample more conformational space

From: Marc Baaden (baaden_at_smplinux.de)
Date: Wed Mar 02 2005 - 07:03:02 CST


Bogos,

if computer time is not an issue, you might want to think about a
replica-exchange type approach. Some people have also combined this
with an implicit solvent approach in which case it becomes computationally
more efficient.

Best wishes,
Marc

>>> Bogos Agianian said:
>> Dear Amber users,
>> Starting from a crystal structure of a protein-peptide complex, I try to mo
     del
>> the binding of the same peptide to very similar isoforms of the protein
>> (created by homology modeling). The starting structure of the peptide is th
     e
>> one obtained after 3D-superposition of the homology models onto the crystal >> structure of the complex.
>> My question is what is a good protocol in Amber 7.0 to sample as much
>> conformational space of the peptide as posible so that it gets un-stuck of
     its
>> conformation in the crystal.
[...]
>> ..but the peptide is not moving a lot. Is there a good way to give it a
>> kick?

-- 
 Dr. Marc Baaden  - Institut de Biologie Physico-Chimique, Paris
 mailto:baaden_at_smplinux.de      -      http://www.marc-baaden.de
 FAX: +33 15841 5026  -  Tel: +33 15841 5176  ou  +33 609 843217

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