select all
backbone
wireframe off
select helix
hbond
backbone off
wireframe
select ser44.CA
label alpha helix
select sheet
hbonds
ribbons
backbone off
select 29-32,49-54
colour red
select 21-26
colour blue
select 26-29
backbone off
select 27-28
strands
colour green
select cys56.CA
label beta sheet
rotate x 120
rotate y -50