Figure 2From: Epigenetic hereditary transcription profiles III, evidence for an epigenetic network resulting in gender, tissue and age-specific variation in overall transcriptionIllustration of procedure used to evaluate the contribution of a probe to an effect of age on deviation index. Figure 2A shows the transcript abundance of probe PSMB4a in database BB of males in M libraries To generate the residual errors in Figure 2B, all data points were reduced with 1000 and resulting negative residual errors were converted to positive values. In this case of PSMB4a the regression with age is positive and significant (P = 0,005).Back to article page