I'm sorry, I have just corrected my previous message,
I meant RESNO, not RESID, and I had already read and understood your opening message when I wrote on this topic for the first time, anyway I will try to treat my DNA as a protein subunit in the OFFSET keywork. Is this wrong?
I will communicate any problem on the forum.

Vittorio Limongelli PhD Student Medicinal Chemistry Faculty of Pharmacy Naples