reset
select 
colour grey
wireframe off
spacefill off
ribbon off
strand off
labels off


select protein
spacefill
select hydrogen
spacefill off  
select (1,4,7,10,13,16,19,22) and sidechain
colour red
select (2,5,8,11,14,17,20) and sidechain
colour cyan
select (3,6,9,12,15,18,21) and sidechain
colour green

select ala1.CB
label '  1'
select ala2.CB
label '  2'
select ala3.CB
label '  3'
select ala4.CB
label '  4'
select ala5.CB
label '  5'
select ala6.CB
label '  6'
select ala7.CB
label '  7'
select ala8.CB
label '  8'
select ala9.CB
label '  9'
select ala10.CB
label '  10'
select ala11.CB
label '  11'
select ala12.CB
label '  12'
select ala13.CB
label '  13'
select ala14.CB
label '  14'
select ala15.CB
label '  15'
select ala16.CB
label '  16'
select ala17.CB
label '  17'
select ala18.CB
label '  18'
select ala19.CB
label '  19'
select ala20.CB
label '  20'
select ala21.CB
label '  21'
select ala22.CB
label '  22'

rotate z -158
rotate y -17
rotate x 83