Figure 4.

GXD data summaries can be viewed at different levels of detail and interactively refined and sorted. Searches using the Gene Expression Data Query form return a page with four tabbed summaries for the assay results, assays, genes, and images that match the search parameters. The assay results tab (upper) is displayed by default. It lists the gene studied, the assay type used, the anatomical system, age and tissue examined, indicates whether expression was detected, provides a link to the corresponding images, lists the mutant alleles of the specimen (if applicable), and provides the reference from which the data were derived. Links in the Result Details and Images columns lead to detailed expression records, such as the one shown in Fig. 1. Arrows in column headers indicate that the column is sortable (one set is circled). The assay results tab (as well as the genes tab) allows for the export of results in text and spread sheet formats (buttons in table header). The images tab (lower) shows all the images that match the search criteria, together with the gene(s) examined in that image and the assay type used and provides a link to the corresponding part of the detailed expression record. The expression summaries can be refined by using the ‘click to modify search’ button or by employing the filter options provided on the summary page. The content of all four tabbed summaries will change accordingly.