[gmx-users] How to analyse the number of atom around the protein?

[fufengliu at tju.edu.cn]

Hi,

I am trying to analyse the number of atom around the protein. For example, I want
to calculate the number of oxygen atom of water within 3A of the protein. Can
somebody tell me how to do it? Or tell me choose which commands to do it.
Many thanks in advance,

Fufengliu