. 2015 Apr 21;6(2):e00047-15. doi: 10.1128/mBio.00047-15

TABLE 1 .

Sites of nucleotide polymorphism in CTX prophages

Strain	Prophage^a	rstR^a	Nucleotide at position in gene^b																		No. of heptamers in zot-ctxA (1197~74)^c	ctxB
			rstA										rstB							zot
			27	162	183	258	345	516	540	579	609	774	77-79	90	96	108	192	288	291	1057
N16961	CTX^ET	ET	C	C	C	G	G	G	A	T	T	C	GTA	A	T	G	A	A	C	C	4	ctxB3
O395	CTX^CL	CL	T	T	A	C	T	A	G	C	C	T	–	T	C	.	.	G	T	.	7	ctxB1
MJ1236	CTX^Hyb	CL	T	T	A	C	.	.	.	.	.	.	.	.	.	.	.	.	.	.	4	ctxB1
HCO1	CTX^Hyb	CL	.	.	.	.	.	.	.	.	.	.	–	.	.	.	.	.	.	.	5	ctxB7
PhRBD_Vc326	CTX^Hyb	CL	T	T	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	T	4	ctxB1
PhRBD_Vc311	CTX^Hyb	CL	T	.	A	.	.	.	.	.	.	.	.	.	.	.	.	.	.	T	4	ctxB1
PhRBD_VcEnv	CTX^Hyb	CL	T	T	A	.	.	.	.	.	.	.	.	.	.	.	.	.	.	T	4	ctxB1

^{^a}

ET, El Tor type; CL, classical type; Hyb, hybrid.

^{^b}

Dots indicate sequence identical to that of V. cholerae N16961; dashes indicate deletions.

^{^c}

Number of ToxR-binding site repeats.