load http://prodata.swmed.edu/DrugDomain/af_mmcifs/P21912.cif orient select P21912_nD2, resi 146-280 color blue, P21912_nD2 select P21912_nD1, resi 36-145 color brightorange, P21912_nD1 select inorganic + organic util.cbag sele select resn HOH hide (sele) deselect