Linearity of Western blot chemifluorescence intensity of serial dilutions of Reln H-protein standard (●) and 400-kDa Reln-LI protein (○) obtained from CGN extracts probed with the G-10 antibody. Experimental conditions are as described in Fig. 1. Given the linear range of assay for Reln H-protein, between 5 and 40 fmol, and considering that the volume applied to the gel was 40 μl, the final concentration of Reln H-protein standard solution was between 125 and 1,000 pM. Thus, the volume of the cell extract was adjusted to obtain similar Reln concentrations.