define qwerty 142-162:C
pause
restrict *:C
ribbons
color grey
select qwerty
color green
pause
background white
restrict qwerty
pause
backbone off
ribbons off
wireframe 50
restrict qwerty
select qwerty and oxygen
color red
select qwerty and nitrogen
color blue
select qwerty and carbon
color grey
ribbons off
select qwerty
hbond
select *.CA
label "--- %r"
restrict qwerty
pause
select backbone
wireframe 30
restrict qwerty
select *.CB
color red
spacefill 45
restrict qwerty
pause
restrict qwerty and (backbone or *.CB)
wireframe 30
select shel and (*.CB or *.CA)
wireframe 10
select shel and *.CB
spacefill 80
color red