The Hottest Genes
The Hottest T/Cs
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About GEB for Arabidopsis

Gene Expression Browser (GEB) is a free online service for scientists to find gene expression profiles. The first version of GEB is delivered with 142 Affymetrix ATH1 Arabidopsis microarray experiments (2435 chips). The microarray data is collected from NASC's Affymetrix Service. Users can obtain gene expression profiles by searching the key words in gene annotation, treatment/control (T/C) description or experiment description.

Terminology

T/C stands for treatment over control. GEB T/C View shows the expression profile of all genes under a T/C condition. GEB Gene View shows all T/Cs that affect the expression of a selected gene. Both T/C View and Gene View are presented by MA plot. MA plot is used to visualize intensity-dependent ratio of microarray data. The MA plot uses M (log2 ratio of treatment over control) as the y-axis and A (average log2 intensity of treatment and control) as the x-axis.

Quick Start

Enter key words such as heat, cold or infection into the search box and click Submit to find search results. Click on the link to reach gene expression profile shown by Gene View or T/C View. Use the mouse to drag-and-drop the red square on the top-left MA plot onto the data points to find detailed information of each data point. Click 'select' link to mark the data point on the MA plot. Please have a training by clicking Quick Start, slide show or Shockwave flush video show or video show in Youtube (watch in high quality)

Future Development and Collaboration

We will keep adding more and more Arabidopsis microarray experimental data into GEB for Arabidopsis. We welcome scientists to donate Affymetrix ATH1 microarray data. We also plan to build GEB for Mouse and GEB for Human in 2009. Welcome scientists to involve into our mouse or human project. We can release licenses and provide technical supports to deploy GEB for visualizing private micoarray data in enterprise's intranet when industrial, academic or non-profit institutions are interested in GEB.