Figure 8

Positive and negative correlation to RNA quality and median of relative probe positions. Distribution of the median of relative probe positions for 1000 top positive score transcripts and 1000 top negative score ones. The first principal component scores were summarised for two chips. Positively correlated to RNA quality transcripts are underrepresented in the very 3' end of probes position distribution, whereas negatively correlated transcripts are overrepresented in the 0.8–1 interval.