[phenixbb] Making GDP (non-polymer) into an RNA monomer

[Ralf W. Grosse-Kunstleve]

Hi Francis,

> However, what's the etiquette for how the residue should be named in
> the PDB? I have it right now as GDP, though Gr seems much more
> sensible? Or should I name it something completely custom?

If the monomer library GDP matches what you have in the PDB I'd
stick with the name. I'd rename the residue only if modifications
are necessary.
Gr would be a problematic alternative because the monomer library
uses that already for RNA Guanosine (mon_lib/g/GR.cif).

Ralf