Webfigure 1. Unsupervised hierarchical cluster using less stringent gene filtering criteria. A representation of the variation in expression of 16,293 cDNAs (12,432 unique Unigene clusters) in different compartments of five kidneys. Gene filtering criteria were for log base 2 of 1.25 from the normalized mean and at least 60% well measured spots. Notice that the sample dendrogram is essentially unchanged relative to the much smaller cluster in figure 1. The number of cDNAs that comprise each cluster is shown.