Hello,

I know DS can calculate radius of gyration for the entire protein molecule, but can it make the calculation for a cluster of selected residues within the protein?  I've tried selecting the residues, but the "calculate Radius of Gyration" function is inoperable. I've also tried the calculation by first deleting all other residues (leaving only the residues of interest), but the program still made the calculation for the entire protein molecule. If anyone has any ideas how to make this calculation possible for a selected group of residues, please let me know.  Thank you. Your help is greately appreciated!

Josie