[modeller_usage] modeling of phosphorylated polypeptide

Hi,

Many proteins are phosphorylated in vivo and and the status of their phosphorylation correlate to their function. The residues which are phosphorylated (Thr, Tyr or Ser) can be determined by mass spectrometry. I wonder how to build a phosphorylated model directly or how to apply a patch on a model to get a phosphorylated model in Modeller?

Thank you advance for your suggestions.

Xiao-Ping Zhang