#for PDB structure 1cho

#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 101
rotate y 52
rotate x -177
translate x -1
translate y -3
zoom 273

select *e
backbone 80
select ((asp102,his57,ser195) and sidechain),asp102e.CA,his57e.CA,ser195e.CA
wireframe 80
colour white
select backbone
colour group

select his57e.CB
label "H 57"
select asp102e.CB
label "D 102"
select ser195e.OG
label "S 195"
set fontsize 16