Figure 3.

Sequencing gel northern blot analysis of scRNA processing pattern in triple exoribonuclease mutants. Below each lane is the genotype of the strain from which RNA was isolated. For clarity, the single 3′ exoribonuclease known to be present in each mutant strain is indicated below the genotype (PNP, PNPase; R, RNase R; PH, RNase PH; YM, YhaM). Full-length and mature scRNA and products from Bs-RNase III cleavage are indicated by arrows; products that are thought to arise by processing after endonuclease cleavage at site X are indicated by lines without arrowheads.