load http://prodata.swmed.edu/DrugDomain/af_mmcifs/P31937.cif orient select P31937_nD1, resi 31-205 color blue, P31937_nD1 select P31937_nD2, resi 206-330 color brightorange, P31937_nD2 select inorganic + organic util.cbag sele select resn HOH hide (sele) deselect