Umbrella sampling problem

GROMACS version:
GROMACS modification: Yes/No
Here post your question i have to do umbrella sampling. I have done dna ligand md simulation , i want to know from where i started to use complexes as the justin tutorial use onlly protein molecule i want to use form my complex.

Dear Pallavi,
Here’s an answer to a similar question: Umbrella Sampling for Protein-Ligand Complexes