TABLE 1.

Sequences of primers used in this study

Primer name	Sequence
exoU-Up-F+GWL	TACAAAAAAGCAGGCTGATTTTCTCCTGCCGGTACA
exoU-Up-R	TGTGAACTCCTTATTCCGCCGGATATGCATGTTCGCTCCT
exoU-Dwn-F	AGGAGCGAACATGCATATCCGGCGGAATAAGGAGTTCACA
exoU-Dwn-R+GWR	TACAAGAAAGCTGGGTAAACCCAGGAGGGTTCTGAG
exoU-Out-F	TGCTGTACGCCCAGACATAG
exoU-Out-R	ACGTCCTTCGACTGAAAACG