Clustering of tissue-specific gene expression. The dendrograms display (A) the spleen-specific clustering branch (507), (B) the liver-specific cluster with nine gene fragments (508), (C) the brain-specific clustering branch (506) containing two distinct subbranches, (D) the heart cluster (505), and (E) the muscle cluster (501). “Unknown” describes cDNA clones with either no sequence information or no data base entry (BLAST probability score higher than e−20) was obtained. The consensus vectors given in the numbered boxes in the clustering diagrams (bold lines) represent the mean expression values of the cluster members (faint lines). Li, liver; Ki, kidney; He, heart; Sp, spleen; Mu, muscle; Br, brain. Updates of these clones will be made publicly available on the RZPD homepage (http://www.rzpd.de).