load 3HZB.pdb
restrict within(5, 116:H) 
select (54:H.OD1) or (53:H.OE1)
cpk off
select (35:H.CG) or (35:H.OD1) or (35:H.ND2)
cpk off
wireframe off
select (54:H) or (79:H) or (36:H)
cpk 100
wireframe 50
select 116:H
label Ca 2+
set labeloffset -13 1
select 36:H.CB
label Asp 36
set labeloffset -3 3
select 79:H.C
label Val 79
set labeloffset 15 0
select 54:H.CB
label Asp 54
center {41.0075 90.10651 32.286} 
rotate z -35.07 
rotate y 94.11 
rotate z 38.2 
zoom 370.91
select 219:H.O
label HOH 219
select 119:H.O
label HOH 119                        
select 94:H.O
label HOH 94
select 120:H.O
label HOH 120