most of the relevant data for such systems is from NMR and CD, not
crystallography. The helix content is too strongly affected by
crystallization. See the reference below for some MD and experimental data
of peptides like what you want.
Song, K., Stewart, J., Fesinmeyer, M. Andersen, N., Simmerling, C.,
“*Structural
Insights for Designed Alanine-rich Helices: Comparing NMR Helicity Measures
and Conformational Ensembles from Molecular Dynamics Simulation*”,
Biopolymers, 89:747-760 (2008)
On Wed, Nov 23, 2011 at 9:47 AM, Tong Zhu <tongzhu9110.gmail.com> wrote:
> Dear all,
>
> I want to find some alpha-helix structure which consists of several
> Alanine residues (ie. Ala21), but I can't find it in the protein data
> bank, can anyone gives me some idea?
>
> Thank you very much!!!
>
> Lili Duan
>
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Received on Wed Nov 23 2011 - 09:00:06 PST
