Figure 1

Dependance of the measured signal w.r.t. probe position. Probes have been ordered on their position along the mRNA molecule. Most probe sets consist of 11 probes. In these figures, we show the median expression profile (after quantile-quantile normalization) for the first probe in all probe sets, the second probe in all probe sets, and so on for 11 probes (for probe sets with a different number of probes we use interpolation). Each line in both plots indicates a separate microarray. The different colors in a) represent different arrays, and in b) represent different batches. For a description of the datasets see the Methods section.