Enrichment of 5′-ends in the RNase J mutants.

a) Only positions where both WT and mutant strain exhibited 2 reads or more (normalised with total number reads from the strain) were included.b) Enriched: Positions where the normalised mutant strain exhibits more than 4× the number of reads in the WT (Mutant>4×WT).c) Similar: (WT/4d) Reduced: Positions where the normalised mutant strain exhibits less than 4× the number of reads in the WT (WT/4>Mutant).a) 仅纳入经菌株总测序读段（reads）数归一化处理后，野生型（Wild Type, WT）与突变株（mutant strain）的测序读段数均不低于2条的位点。 b) 富集（Enriched）位点：经归一化处理后，突变株的测序读段数超过野生型的4倍（突变株>4×野生型）。 c) 相似（Similar）：(WT/4d) 减少（Reduced）位点：经归一化处理后，突变株的测序读段数低于野生型的4倍（WT/4>Mutant）。