spectrum count,rainbow,ref
spectrum count,rainbow,unres
show cartoon,ref
+show sticks,ref and (cys/ca+cb+sg) and byres (cys/sg and bound_to cys/sg)
show sticks,unres and name CA
+show sticks,unres and (CYS/CA+CB) and byres (CYS/CB and bound_to CYS/CB)
png unres_overlap.png,500,400,ray=1