If everything is working, the following B-DNA molecule should be visible:
You can manipulate the orientation of the molecule and change its display using the mouse.
For the most part, you will not have to manipulate the molecules
yourself, instead, you will be guided through the manipulations
by using buttons throughout the tutorial.
The buttons manipulate the coloring and orientation of the molecule to correspond to the tutorial text for you. If you change the display yourself, clicking the buttons will usually correct the display. If not, reload the page. On the pages that follow, you will find buttons both in the text and collected in a frame containing all the buttons used in the tutorial.
Below is a table summarizing mouse commands:
|Rotate about X,Y axis||Drag Left Mouse Button||Drag Mouse Button|
|Show Chime's Menu||Click Right Mouse Button||Hold Down Mouse Button|
|Zoom In||Shift Key-Drag Left Mouse Button||Shift Drag Mouse Button|
|Rotate about Z axis||Shift Key-Drag Right Mouse Button||Shift & Command Keys-Drag Mouse Button|
|Translate in X,Y plane||Ctrl Key-Drag Right Mouse Button||Command Key-Drag Mouse Button|
|Move Z Slab Plane||Ctrl Key-Drag Left Mouse Button||Ctrl Key-Drag Mouse Button|
Try using some of the mouse commands on the molecule
above. First, activate the Chime menu by holding down the mouse
button (or clicking the right button). Stop the rotation by slecting
"rotation" under the menu and selecting "Stop".
Now try rotating the molecule yourself by gragging the mouse around.
You can also try some of the options for changing the display
listed in the menu if you like.
You will also find links to other parts of the tutorial as underlined text.
Some of the structure files are quite large, depending upon the molecule (up to 100's of Kbytes), so be patient while the pages come up. Once the molecule is loaded, the demonstrations move along as fast as you want.
|DNA and RNA||
Comparison of A, B, and Z DNA
Nucleotide numbering help
Pley, et al.
Scott, et al.
Model of an RNase P RNA Tertiary interaction
Nucleosome core particle
U1A Protein-RNA structure
Also Check:Collection of Red-Blue stereograms of many of these molecules You will need Red-Blue 3D glasses to view these.
Based on the E.
coli DNA polymerase III beta subunit tutorial
developed by David Marcey at The Online Macromolecular Museum
of California Lutheran Univerity Be sure to visit it.
You can also find a directory of moleular tutorial web pages at the World Index of BioMolecular Visualization Resources