TABLE 1.

Comparison of the nucleotide and amino acid sequences of the structural protein and nonstructural NS1 protein gene region of the parental DEN2 NGC strain and its mouse-adapted neurovirulent mutant

Position	Nucleotide		Position in protein	Amino acid
	Parent	Mutant		Parent	Mutant
601	CTT	TTT	PreM55	Leu	Phe
608	AGG	AAG	PreM57	Arg	Lys
1149	GAA	GAT	E71	Glu	Asp
1176	CCT	CCC	E80	Pro	Pro
1255	TTA	CTA	E107	Leu	Leu
1312	GAA	AAA	E126	Glu	Lys
2140	TTT	ATT	E402	Phe	Ile
2297	ACT	ATT	E454	Thr	Ile
2735	CGG	CAG	NS1105	Arg	Gln
3130	CTA	TTA	NS1277	Leu	Leu