. 2012 Jul;80(7):2346–2353. doi: 10.1128/IAI.00293-12

Table 1.

Phenotypic and genetic characterization of Neisseria meningitidis capsule null locus (cnl) strains recovered from invasive meningococcal disease patients in Canada

Strain	Antigenic formula^a	PorB VR types^b	PorA VR types^b	MLST result	cnl allele
2274	NG:15:P1.−	VR1 = A	VR1 = 19	ST-198	cnl-2
		VR2 = A	VR2 = 13-9
		VR3 = A	VR3 = 35-1
		VR4 = Ba
2275	NG:15:P1.6	VR1 = A	VR1 = 18	ST-198	cnl-2
		VR2 = A	VR2 = 25-1
		VR3 = A	VR3 = 38-1
		VR4 = Ba

NG, nongroupable.

PorA and PorB VR types were identified and named according to the nomenclature of Sacchi et al. (25, 26).