load 1fcw.pdb restrict *a wireframe 60 center *a zoom 200 define helix1 1-7a,66-72a define helix2 50-53a,61-64a define helix3 11-13a,22-24a define helix4 27-29a,25a,41-43a,45a define helixes helix1,helix2,helix3,helix4 define loop1 8-10a define loop2 46-49a define loop3 14-21a define loop4 54-60a define loop5 30-40a define loops loop1,loop2,loop3,loop4,loop5 define knot1 14a,8a define knot2 15a,48a define knot3 19a,56a define knots knot1,knot2,knot3 define lends 71-76a define anticodon 34-36a echo This is my tRNA chain A. pause select helix1 color red select helix2 color blue select helix3 color green select helix4 color cyan echo This is 4 helix. pause select knots color yellow echo This is Non-canonical pairs. pause select anticodon color purple echo This is anticodon. pause