[gmx-users] (no subject)

[Kingsley Theras Primus Dass .]

Hello !
As I am new to this field , I have some doubts . I want to sulfate the
tyrosine residue in the chemokine receptor ...
But wen I download a pdb file that has sulfated tyrosine residue and run
pdb2gmx command in GROMACS ,it is showing a error message ...how can i come
over this problem

Program pdb2gmx, VERSION 4.6.1

Source code file:
/home/abuild/rpmbuild/BUILD/gromacs-4.6.1/src/kernel/resall.c, line: 642


Fatal error:

Residue 'TYS' not found in residue topology database

For more information and tips for troubleshooting, please check the GROMACS

website at http://www.gromacs.org/Documentation/Errors

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