[phenixbb] elbow

[Ralf W. Grosse-Kunstleve]

> The answer is yes but there may be better options.  Ralf is the best
> person to answer this question but one option is to start with the .cif
> file in the monomer library.

This is more a chemistry question than a formatting question.
Since I'm not deeply familiar with the DNA chemistry, I was pointing
Maia to phenixbb in hopes that someone may already have figured out
the list of torsion angle restraints to fix sugar puckers.

What Maia really wants is:

> could you please send me a specific example of how to modify a cif file
> to specify the sugar puckers in DNA (I want them C2'-endo).

Has anyone on this list done this already?

Ralf