[gmx-users] Why NaCl and KCl solution?

[David van der Spoel]

Chih-Ying Lin wrote:
> HI
> 
> 
> 
> 1. Would you please tell me the reason that "generally people use NaCl
> or KCl in the solution with protein"?
> 
You might want to read some basic biochemistry textbook. Without salt 
you die.


> 
> 2. Why does PDB file of the protein NOT Carrying ions?
> 
> 
> 
> Thank you
> Lin
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-- 
David van der Spoel, Ph.D., Professor of Biology
Molec. Biophys. group, Dept. of Cell & Molec. Biol., Uppsala University.
Box 596, 75124 Uppsala, Sweden. Phone:	+46184714205. Fax: +4618511755.
spoel at xray.bmc.uu.se	spoel at gromacs.org   http://folding.bmc.uu.se