How to view the exhibits at The OMM

Assuming you are using >Netscape 3.0, have downloaded and installed Chime (see Required software), and have restarted Netscape, you should now be able to visualize the following B-DNA molecule:
If you see a strange symbol, instead of DNA, you do not yet have Chime working appropriately. Perhaps you have installed a version of Chime intended for a different operating system, or you have installed Chime in a different directory than the directory your working version of Netscape is in? Try installing again, carefully following instructions at the MDL Chime site.

If you DO see DNA above, you are ready to visit the exhibits at the OMM, but before you do, here are a few tips to enhance your visit. As you explore a display for the first time, it is recommended that you not manipulate the molecules on your own, but rather follow (i.e. click on), in order, the built-in cue buttons that look like this: (note the effect on the DNA, above). You can now easily distinguish the base pairs and the ribose-phosphate backbone of the molecule. In a given display, text describing a particular molecular feature will be followed by a cue button that will elicit a relevant change in the rendering of the molecule, similar to what you have just seen. If, at any time, you wish to restore the molecule to its starting state, use the reload button of Netscape to refresh the page.

You can also easily change the orientation or rendering of the molecules on your own. Here is a table of mouse commands with indicated results (may we suggest that you print a copy of this for later reference?):

Desired Result Windows Macintosh
Activate Chime's menu Right button  Click, (don't drag)
Rotate X,Y Left button, drag Click, drag quickly
Translate X,Y Ctrl-Right button, drag Command* click, drag
Rotate Z Shift-Right button, drag Shift-Command* click, drag
Zoom Shift-Left button, drag Shift click, drag
Slab Plane Ctrl-Left button, drag Ctrl click, drag
*On some Macs, the Option (Alt) key has the same effect as the Command key.
For example, if you are using Windows, with a cursor in the molecule frame (try it, above!), clicking the left mouse button and dragging will rotate the molecule around the x and y axes. Clicking the right mouse button will activate a menu which allows the following manipulations: One final tip...explore the hot text in the tutorials: clicking on it will either change the molecule, or lead to further information.
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The Exhibits

Exhibits updated on November 16, 1998

The macromolecular displays at the OMM are grouped in "halls", according to function, as follows:

Note: the atomic coordinate (PDB) files have been gnu-zipped to speed downloads, but some files are still large (up to ~1Mb), so please be patient...we've tried to make the tutorials worth the wait!
[Back to OMM Home] [About this site] [Required software] [Links of interest] [Methods] [How to view the molecules] [Acknowledgements] [The Exhibits] [Feedback]

Hall of Introductory Exhibits 

Amino Acid Structures Chemical Bonds and Protein Structure

Hall of DNA polymerization 

ß subunit of E. coli DNA polymerase III Klenow fragment of E. coli DNA polymerase I
HIV reverse transcriptase Proliferating cell nuclear antigen (PCNA)
T7 DNA replication complex Eukaryotic DNA Polymerase ß 
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Hall of DNA recombination 

Hin Recombinase RecA (E. coli)
HIV-1 Integrase Topoisomerase I (E. coli)
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Hall of oxidoreductases 

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Hall of DNA modification 

HhaI DNA Methylase 
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Hall of cell adhesion 

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Hall of porins and channels 

E. coli porins: OMPF and Maltoporin (LamB)
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Hall of transcription factors and repressors 

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Hall of signal transduction 

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Hall of RNA processing 

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