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Table 1 pVAX-prME mutant vectors and predicted glycosylation patterns.

From: Mutation of putative N-Linked Glycosylation Sites in Japanese encephalitis Virus Premembrane and Envelope proteins enhances humoral immunity in BALB/C mice after DNA vaccination

Name

Mutation site

Glycosylation

 

prM-15

E-154

prM

E

pVAX-prME-wt

Asn Asn Thr

Asn Tyr Ser

+

+

pVAX-prME-M1

Ala ÆŸ Asn Thr

Asn Tyr Ser

-

+

pVAX-prME-M2

Asn Asn Thr

Ala ÆŸ Tyr Ser

+

-

pVAX-prME-M3

Ala ÆŸ Asn Thr

Ala ÆŸ Tyr Ser

-

-

  1. Amino acid residues of JEV prME protein targeted for mutagenesis. prME -M1 and prME -M2 are single site mutants, whereas prME -M3 is the double mutant. In all mutants, the Asn codon was replaced by an Ala codon in its N-glycosylation sites (N-X-T/S). Asterisks represent mutated N-glycosylation sites.