On 1/15/15 12:20 PM, Jennifer Vo wrote:
Dear Experts,
I ran a grompp (gromos53a6 ff)
grompp -f em.mdp -c complex2_solvated.gro -p topol.top -o complex.tpr

and it generated the error
Atomtype P,SI not found

I checked the gromos53a6.ff/atomtypes.atp and see there are P, SI in the
list
    SI  28.08    ;     Silicon
    P  30.97380 ;     Phosphor

And there is no P, SI in my complex2_solvated.gro file! I really do
appreciate for any help.

It's an atom type, so it won't be in a coordinate file. Something in a topology or force field file is specifying something called "P,SI" as an atomtype. That's clearly not sensible.

-Justin

--
==================================================

Justin A. Lemkul, Ph.D.
Ruth L. Kirschstein NRSA Postdoctoral Fellow

Department of Pharmaceutical Sciences
School of Pharmacy
Health Sciences Facility II, Room 629
University of Maryland, Baltimore
20 Penn St.
Baltimore, MD 21201

[email protected] | (410) 706-7441
http://mackerell.umaryland.edu/~jalemkul

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