script rna.txt
set fontsize 12
set fontstroke 1
labels off

select :C and (534, 535, 536, 537) and (not(backbone), *.C1*, *.?4*, *.?5*)
wireframe 150
color orange
echo The 1st region of nonhelical stacking interactions is shown
echo Press any key to show the 2nd region
select selected and ((*.N1 & (C,U)), *.N9)
label %r
pause

restrict backbone
wireframe off
select :C and (548, 545, 509, 546, 521, 559, 560) and (not(backbone), *.C1*, *.?4*, *.?5*)
wireframe 150
color orange
select selected and ((*.N1 & (C,U)), *.N9)
label %r
echo The 2nd region of nonhelical stacking interactions is shown
echo Press any key to show the 3rd region
pause

restrict backbone
wireframe off
select :C and (573, 575, 576) and (not(backbone), *.C1*, *.?4*, *.?5*)
wireframe 150
color orange
echo The 3rd region of nonhelical stacking interactions is shown
select selected and ((*.N1 & (C,U)), *.N9)
label %r