#task_1 
fetch 3czf
hide everything
select R169_A, resi 169 and alt "A" and chain A
select site_R169_A, byres all within 5 of R169_A
show sticks, site_R169
color orange, R169_A

select R169_B, resi 169 and alt "B" and chain A
select site_R169_B, byres all within 5 of R169_B
show sticks, site_R169_B
color yellow, R169_B

select E166_A, resi 166 and alt "A" and chain A
select site_E166_A, byres all within 5 of E166_A
show sticks, site_E166_A
color green, E166_A

select E166_B, resi 166 and alt "B" and chain A
select site_E166_B, byres all within 5 of E166_B
show sticks, site_E166_B
color blue, E166_B

bg_color white
hide everything
show sticks, R169_A or R169_B or E166_A or E166_B
show cartoon, backbone
set cartoon_transparency, 0.5
hide sticks, R169_B or E166_A
hide cartoon, not resi 140-180

color grey, all
color vanilla_ice, R169_A
color blue_sky, E166_B
color blue_nitro, name N*
color red_ox, name O*
set dash_radius, 0.02
set ray_trace_mode, 1

#task_2
set_color vanilla_ice, [248, 241, 224]
set_color blue_nitro, [52, 131, 202]
set_color red_ox, [255, 118, 119]
spectrum b, blue_nitro vanilla red_ox, maximum = 20

#task_2.1
fetch 3czf, type=2fofc
hide everything
select lys-121, resi 121 and chain A
show sticks, lys-121
isomesh map1, 3czf_2fofc, 1, lys-121, carve=1.8
isomesh map2, 3czf_2fofc, 2, lys-121, carve=2
isomesh map3, 3czf_2fofc, 3, lys-121, carve=2

#task_3
rotate y, 10, all
draw 1280, 800
png D:/files/public_html/term7/pr2/Rotations/draw_14.png