[gmx-users] Re: Folding rate
bharat.85.monu at gmail.com
Wed Jan 4 02:59:08 CET 2012
Thanks for the reply. Since I need to study the effect of beta-hairpin turn
design on protein folding . I thought that first unfolding and then
refolding would give the change in folding time. As you told that to do
such a task would require large computational power. Is there any other
method in MDS that could be used ??
On Wed, Jan 4, 2012 at 10:52 AM, Mark Abraham <Mark.Abraham at anu.edu.au>wrote:
> On 4/01/2012 12:35 PM, bharat gupta wrote:
>> Thanks for all your replies. I want to know this can be done in gromacs
>> or not - using REMD with structure based models generated from SMOG server
>> to study protein folding and unfolding ??.
> Well, it can be done, but you probably don't have enough computer to fold
> a 230 residue protein at atomistic resolution (or maybe even
> Also, I have a question about how to determine the exchange probablities
>> for a particular REMD experiment and also how many replicas do we need to
>> consider, does that depend on the temperature list generated from the
>> T_REMD server??
> There's a significant literature on these subjects. I suggest you read
> some of it. Short answer: pick the highest temperature according to the
> size of the largest barrier you expect to cross (good luck guessing that),
> have around 20% exchange acceptance, and be prepared to observe where the
> replica-flow bottle necks are and to iteratively refine you temperatures.
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