Computer Modeling of Biomolecules
Presented by
Kam Bo Wong
Department of Biochemistry & Molecular Biotechnology Programme
email: kbwong@cuhk.edu.hk
http://smart.bch.cuhk.edu.hk/kbwong/index.htm
5. DNA Double helix
5.1 Load the file "dna.pdb"
Can you notice the minor and major grooves of the DNA double
helix?
5.2 Change the color of the whole DNA molecule
RasMol>
select all
RasMol>
color white
5.3 Change the color of the DNA backbone
RasMol>
select backbone
RasMol>
color red
5.4 Making a pretty image of DNA molecule.
RasMol>
select all
RasMol>
spacefill on
You can get more special effects by selecting "Specular" and
"Shadows" in the "Options" menu.
5.6 Save the image by selecting "BMP" in the "Export" menu.
· Try to view the bmp file you just created.