load=1D5Y
color cpk
cartoon 50
wireframe 50
cpk 60
define set1 (*.O5' or *.O4' or *.O3')
define set2 (*.OP1 or*.OP2)
define set3 (DNA and *.N?)
zoom 90
pause
restrict dna
cartoon off
rotate X 90
zoom 140
cpk off
pause
select set1
cpk 150
pause 
cpk off
select set2
cpk 150
pause
cpk off
select set3
cpk 150