TABLE 1.

Oligonucleotide primers used in this study

Primer	Sequencea
NC8-4	5′-TGRTARAAICCYTTRTTRAA-3′
NC8-6	5′-GGIATHAARATHYTITGG-3′
NC8-7b	5′-GGTCTGCGTATAAGCATCGC-3′
M13(−20)	5′-GTAAAACGACGGCCAGT-3′
M13R(−48)	5′-AGCGGATAACAATTTCACACAGGA-3′

^aI, deoxyinosine; R, A or G; Y, C or T; N, A, C, G or T; H, A, C, T.

^bNC8-7 was also used as a probe for Southern hybridization after tailing at the 3′ end with fluorescein-11-dUTP.