Figure 4

Odorant binding proteins (OBPs) are found in several distinct regions of the expression map, which generally correspond to paralogous groups. The OBP paralogous groups (OBP-PGs) are defined (top). OBPs are shown as coloured pie sections on the expression map (centre) with regions of interest are outlined and annotated in terms of two major expression characteristics. The pie charts of four map nodes dominated by OBPs are shown at greater magnification (bottom left and right).