TABLE 1.

PolyG tract lengths in phase variable CPS genes previously associated with phage resistance in C. jejuni as detected during genome sequencing or after complete CPS locus assembly and following PCR amplification.

C. jejuni strain	Phage sensitivity	Origin of polyG tract	PolyG tract length and gene expression state (on/off)
			MeOPN-GalfNAc transferase cj1421 homolog (gene)	MeOPN-Hep transferase cj1422 homolog (gene)	6-O-Me transferase cj1426 homolog (gene)
CAMSA2002	Sensitive	Genome sequence	(DDR89_07185) 9 G’s - on	(DDR89_07190) 9 G’s - on	(DDR89_07210) 9 G’s – on
		PCR	9 G’s - on	10 G’s - off	aND
CAMSA2021	Resistant	Complete CPS locus assembly	(CAMSA2021_28) 9 G’s - on	(CAMSA2021_27) 9 G’s - on	(CAMSA2021_23) 10 G’s - on
		PCR	9 G’s - on	10 G’s - off	10 G’s - on
CAMSA2038	Resistant	Genome sequence	(DDV75_07200) 9 G’s - on	(DDV75_07205) 8 G’s - off	(DDV75_07225) 10 G’s - on
		PCR	10 G’s - off	9 G’s - on	10 G’s - on
CAMSA2147	Resistant	Complete CPS locus assembly	(CAMSA2147_28) 9 G’s - on	(CAMSA2147_27) 9 G’s - on	(CAMSA2147_22, CAMSA2147_23) 8 G’s - off
		PCR	9 G’s - on	9 G’s - on	11 G’s - off

^aCould not be determined.