The star is usually for sugar atoms, not for the bases. I don't remember what curves wants.
Does your PDB have apostrophes instead of stars? If so you should just do a global search and replace.
If you still have a problem, you should copy-paste the error message.
On Jul 2, 2012, at 12:44 PM, Nikolai Suslov wrote:
> I am trying to analyze an RNA helix with curves+. I keep receiving an
> error message that base atom C1* is missing from the pdb. C1 atoms
> are certainly all there.
> Any advice on how to troubleshoot this will be much appreciated.
> Nikolai Suslov