reset
load=1A02
define set1 (*.O3' or *.O4' or *.O5') 
define set2 (*.OP1 or *.OP2)
define set3 (*.N? and dna)
color background white

set echo top right
color echo black
font echo 16 sansserif

zoom 81
select dna
cpk off
wireframe off
cartoon
rotate y -135
select protein
cartoon
color translucent
echo "Protein interacting with DNA"
pause

restrict dna
center selected
rotate y 20
rotate x -90
echo "DNA molecule"
pause

select set1
cpk 150
echo "Deoxyribose oxygen"
pause

select set1
cpk off
select set2
cpk 150
echo "Phosphate oxygen"
pause

select set2
cpk off
select set3
cpk 150
echo "Nucleobases nitrogen"
pause