From: Holstege et al. (1998) Cell 95, 717-728. Genome-wide expression data for selected components of the RNA polymerase II holoenzyme. Data reflecting the change in mRNA levels when a mutant is compared to it isogenic wildtype counterpart is presented in a grid format. In the grid, the upper left grid square represents the left-most gene on chromosome I, and the squares to the right represent adjacent genes, proceeding in a linear fashion through chromosome I, then II, then III, etc., until the last gene on the right arm of chromosome XVI is reached at the bottom of the grid. The results are shown for (A) Rpb1, (B) Med6, (C) Srb10, and (D) Swi2.