[gmx-users] g_hbond

[Fahimeh Baftizadeh Baghal]

hello,
I have a trajectory generated by gromacs in which I excluded water and 
there is only protein, now I like to see how does the number of h_bond 
between water and protein change during the trajectory. In fact when I 
use g_hbond I can choose the water and protein but I was wondering where 
does the information about water come from??
thank you in advance for your time

Fahimeh