Fig. 3. Gene ontology (GO) analysis of proteins expressed in the E14.5 retina and retinal pigment epithelium combined tissue.

Proteins expressed in the retina were subjected to cluster-based analysis using the Database for Annotation, Visualization, and Integrated Discovery (DAVID v6 .8) for functional annotation by gene ontology (GO) categories. This analysis identified candidates representing several GO terms that may be relevant to retinal biology, including those involved in various molecular, cellular and physiological processes. The x-axis represents the number of protein candidates identified in the specific GO term shown on the y-axis.