RasMol>load "1BFF"
RasMol>select all
(go to "display" and select cartoon)
RasMol>color blue
RasMol>select sheet
RasMol> color red
RasMol>select helix
RasMol>color yellow

 

THE PICTURE
(To the above picture following commands were added)
RasMol> select cys
RasMol> color cpk
(go to "option" and select label)
RasMol> color label green
RasMol> select 131
RasMol>  spacefill 1.0
(go to "option" and select label)
RasMol> color label green
The Figure clearly shows the active part of the molecule
The Picture 2
RasMol> select all
(go to "display" and select backbone)
RasMol> select sheet
(go to "display" and select ribbon)
RasMol> select helix
(go to "display" and select strand)
The Picture 3
Spacefill form with shadow and specular options
The Picture 4