Table 1. Primers used in this study.

Oligonucleotide primer	Sequence (5′-3′)
Del-kexB-up-5′	TGAGGTTGACCTCCCACTTTACG
Del-kexB-up-3′	CTTGGATGTGTAGGACGCCTTT
Del-kexB-down-5′	CCTGCTTCTGTACTTAGTAGGCG
Del-kexB-down-3′	GGCTTTGACGGAGACAATGTATG
Rev-kexB-up-5′	TTGTCATCGTGCAAATAGTCC
Rev-kexB-up-3′	CTATCGGGTGCTGGTGGGTG
Rev-kexB-down-5′	GATATATTCCATATTTCTCGT
Rev-kexB-down-3′	TTTATCCGTTCAAAGTCGGCTA
Probe-5′	CTTTGATAGCGTCTCATGGAG
Probe-3′	TGATCCGTGTGGTCTTTGAGC
PyrG-5′	CCAGTGGAAGCCTCTGAAGGAG
PyrG-3′	ACTATGCGTGCTGCTAGGGTCG
KexB-5′	GGAGTATAGCTCTAGTCTTGAGC
KexB-3′	TCAGTGGTCACCGTGTCTCAG