Figure 4

Hierarchical clustering of transcriptional responses of the B-lymphocyte TK6 cell line to various stress agents. Expression data are from Amundson et al (2005). The responses to 200 μM of H2O2 and 2.5 Gy γ-radiation cluster together. Abbreviations: MMS, methyl methanesulphonate; TPA, 12-O-tetradecanoylphorbol 13-acetate; UVB, ultraviolet (280−320 nm). The suffixes ‘Exp1’ and ‘Exp2’ stand for replicated experiments.