The UK Crop Plant Bioinformatics Network

BrassicaDB Tutorial

AceBrowser


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A relative new comer to the scene, AceBrowser is becoming popular as the ACEDB web interface. Similar to Webace in functionality (but quite different underneath), AceBrowser has weaker query facilities but stronger graphics support.

The current version of AceBrowser is addressing some of the query problems although there are still problems with some of the query facilities.

Note: click on the images below to go to that object in the database.


Start page. Showing the classes in the database.

Technique: Select the class to wish to look at from the list box, fill in the "Search pattern" box if you want to limit the results of your search and click on the "Search ACE" button to go to the key list for that class. If the results cover more than one page an arrow will be available at the top of the display along with a drop down list box. The arrow(s) allow you to navigate through the list a page at a time and the list box allows you to jump to a particular page. One you have found the object of interest just click on it to go to its default display.

Task: use the method above to get to the map N1_N-fo-61-9.

AceBrowser
Genetic map N1_N-fo-61-9.

Task: going back to the main page (use your bowser's back button) find the object shown below.

AceBrowser
Generic object display of a paper showing a cross link to Agricola.

Task: again going back to the main page display the sequence EM:H07368. You should get a display similar to the one below. Try the cross-link to the EMBL record for this sequence.

AceBrowser
Generic object display of sequence EM:H07368. Showing a cross link to EMBL.

Task: going back to the sequence display try clicking the "Graphic Display" icon at the top of the page. This takes you to the ACEDB graphic of the display (shown below). Pass your pointer over the blast hits (blue boxes) and keep an eye on your browser's status bar (usually at the bottom of the window). You should see the blast hits descriptions being displayed in the status bar (you may need to resize the browser window to see this properly). If you want to know more about the hit just click to get the object.

AceBrowser
Graphic display of sequence EM:H07368. Showing blast hits for the sequence against SPTrEMBL.

You should now have a feel for how to use the database browsing capabilities of AceBrowser and how they differ from Webace. Usually which method you use will be determined by taste. However there are some things where one of the interfaces performs slightly better than the other, as you have seen when looking at the blast hits for our example sequence. As you become more familiar with each interface you will be able to pick the most useful for the particular task in hand.

Okay now we've looked at the form based interfaces lets move on and have a look at the Java interfaces.

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