Table 1.

Read statistics and average transcript length

				Average paused transcript length (nt)
Datasets	Total reads	Max to Max	Select TSSs	Max to Max	Select TSSs	Top 10%	Top 1%
m7G capped control	39,093,914	177,098	522,186	38.6	41.2	41.7	42.1
m7G capped flavo	15,113,070	95,557	240,896	39.5	41.8	42.2	42.6
capped w/o m7 control	3,024,848	16,241	26,892	33.6	32.1	31.5	29.3
capped w/o m7 flavo	1,433,860	9,997	15,480	35.5	35.4	35.1	33.1

Total paired-end read counts for the four datasets and for the MaxTSS to MaxTPS (Max to Max) and Selected TSS subsets are indicated. In addition, the average lengths of transcripts associated with paused Pol II from the Max to Max and Selected TSS subsets as well as for the Top 10% and 1% of the Selected TSS subset are shown.