TABLE 1.

The pattern of histone post-translational modification enrichment indexes different cell types A qualitative relative abundance representation of the Western blots in Fig. 3 is show. (-), modifications not apparent by immunoblot; •, low relative (within the same blot) abundance; ••, mid relative abundance; •••, high relative abundance. The currently ascribed biological roles for each of the modifications are listed on the right. Those modifications correlated with transcriptional activation are colored green, whereas those modifications correlated with transcriptional repression and silencing are colored red.