| R375K_Fw: | 5’ ACT GGG TGG CGA TTG TGC CTC CCA TGT CGG GAT CCA TCA CCC CTG TCT TCC 3’ |
| R375K_Rev: | 5’ GGA AGA CAG GGG TGA TGG ATC CCG ACA TGG GAG GCA CAA TCG CCA CCC AGT 3’ |
| R375N_Fw: | 5’ ACT GGG TGT TCA TTG TGC CTC CCA TGT CGG GAT CCA TCA CCC CTG TCT TCC 3’ |
| R375N_Rev: | 5’ GGA AGA CAG GGG TGA TGG ATC CCG ACA TGG GAG GCA CAA TCG ACA CCC AGT 3’ |
| R375D_Fw: | 5’ GGA AGA CAG GGG TGA TGG ATC CCG ACA TGG GAG GCA CAA GA ACA CCC AGT 3’ |
| R375D_Rev: | 5’ GGA AGA CAG GGG TGA TGG ATC CCG ACA TGG GAG GCA CAA TCT TCA CCC AGT 3’ |