import show_UNRES

load file_MD000.pdb,md

smooth md,2,2
hide all
show stick, md and name CA
show sticks,(CYS/CA+CB) and byres (CYS/CB and bound_to CYS/CB)
bg_color white
spectrum count,rainbow,md

set ray_trace_frames,1
set cache_frames,0
viewport 500,400
mpng tmp/aa