[gmx-users] Re: Counterions: influence on protein dynamics.

2006-02-28 Thread Maxim Fedorov
Dear Tsjerk > Maxim, > > I'd guess that you're polylysine doesn't come charged without > having any > counterions in experiment. Indeed, but if we are using classical non-polarisable FF we already thrown off effects of protonation/deprotonation, charge transfer etc, do we? In the experiment

Re: [gmx-users] Re: Counterions: influence on protein dynamics.

2006-02-28 Thread Antonio Baptista
On Tue, 28 Feb 2006, Tsjerk Wassenaar wrote: Maxim, I'd guess that you're polylysine doesn't come charged without having any counterions in experiment. In the experiments, you're probably dealing with hydroxide ions (and an additional amount of hydronium ions). I'd say these will also influence

Re: [gmx-users] Re: Counterions: influence on protein dynamics.

2006-02-28 Thread Tsjerk Wassenaar
Maxim,I'd guess that you're polylysine doesn't come charged without having any counterions in experiment. In the experiments, you're probably dealing with hydroxide ions (and an additional amount of hydronium ions). I'd say these will also influence the experimental findings. Therefore, there's mor

Re: [gmx-users] Re: Counterions: influence on protein dynamics.

2006-02-27 Thread Mark Abraham
Maxim Fedorov wrote: Thank you for your message, but ... It doesn't seem to answer for my particular question - probably I should go in more details. I am investigating the charge-driven unfolding of protonated polypetides like poly-L-Lysine and other compbinations of charged/neutral residials.

[gmx-users] Re: Counterions: influence on protein dynamics.

2006-02-27 Thread Maxim Fedorov
> -- > > Message: 7 > Date: Mon, 27 Feb 2006 09:11:14 +0100 > From: David van der Spoel <[EMAIL PROTECTED]> > Subject: Re: [gmx-users] Counterions: influence on protein dynamics. > To: Discussion list for GROMACS users > Message-ID: <[EMAIL PROTECTED]> > Content-Type: