load http://prodata.swmed.edu/DrugDomain/af_mmcifs/Q9NZK7.cif
orient
select Q9NZK7_nD1, resi 21-140
color blue, Q9NZK7_nD1
select resn TDA
select br. all within 5 of sele
show sticks, sele
color magenta, sele
hide (organic)
hide (inorganic)
select resn TDA
show sticks, sele
util.cbag sele
select resn HOH
hide (sele)
deselect