TABLE 1.

Primers used in this study

Primer	Sequencea (5′–3′)	Locationb (nt)
gD-fw	CAC AGA ATT CAC CTG CCA GCG CCA TGC	121131–121148
gD-rv	CAC AGA ATT CCA TCG ACG CCG GTA CTG C	122370–122353
DH-3	AGA ATT CAA AGT TTG CCG TGC CCG TC	60748–60766
DHrev1	CAT CTA GAC ACG CGC ACG CAG AGA GT	62873–62856
P438S-fw	CGA CGT CCT CTC GTC GTG CGC CGT CTC	62068–62094
P438S-rv	GAG ACG GCG CAC GAC GAG AGG ACG TCG	62094–62068
S438P-fw	CGA CGT CCT CTC GCC GTG CGC CGT CTC	62068–62094
S438P-rv	GAG ACG GCG CAC GGC GAG AGG ACG TCG	62094–62068
C404S-fw	CGC ACC ACG GCC ATG TCC ACC GCG GAG CGC GCC	61964–61996
C404S-rv	GGC GCG CTC CGC GGT GGA CAT GGC CGT GGT GCG	61996–61964

^aRestriction sites are in italics; nucleotide substitutions are underlined.

^bThe locations for the primers correspond to nucleotide postitions in the sequence with GenBank accession number JQ809328 (29).