Unique XRAY gene-page gives a single view of gene level, probe-set level, chip background, probe level, and biological annotation. The light background shows tissue specific exon usage between heart (red), skeletal muscle (dark blue), and other (light blue) tissues. The overlap of alt. splicing with the red triangles indicate that the alternative splicing may change protein sequence. Splicing patterns of known mRNAs agree with the expression analysis and are shown just below the triangles.