Hi Antony, Apologies for the cross-posting, but I *do* routinely use programs from all > three software packages. > > I find myself refining a relatively low resolution structure (3.5 > Angstrom) - with 8 molecules in the asymmetric unit. > Is there a *simple* automated way to place “optimal-fit to electron > density" side-chain rotamers into my model? > Preferably in an NCS-independant manner? >
naively assuming that one of the "three software packages" that you did not mention by name is Phenix: yes, you can do it in a number of different ways. Let me know if interested and I will list all options. Pavel