#for PDB structure 1sbt

#following 5 lines are for RasMol 2.5 compatibility
select
spacefill off
wireframe off
ribbons off
backbone off
label off

reset
slab off
rotate z -19
rotate y 51
rotate x -12

ribbon
select ((asp32,his64,ser221) and sidechain),asp32.CA,his64.CA,ser221.CA
wireframe 80
colour white
select backbone
colour group