Volume 21, Number 4—April 2015
Research
Sequence Variability and Geographic Distribution of Lassa Virus, Sierra Leone
Table 3
Estimates of average evolutionary divergence of NP, GPC, and L gene fragments for Lassa virus strains, Sierra Leone*
Gene, grouping | Difference† |
|
---|---|---|
Nucleotide | Amino acid | |
NP | ||
Overall | 7.01 | 2.82 |
Clade A | 5.03 | 2.06 |
Clade B | 0.62 | 0.77 |
Clade C |
6.44 |
2.42 |
GPC | ||
Overall | 8.92 | 4.06 |
Clade A | 6.26 | 2.60 |
Clade B | 0.68 | 0.49 |
Clade D |
7.49 |
3.29 |
L | ||
Overall | 9.83 | 0.71 |
Clade A | 6.59 | 0.58 |
Clade B | 0.89 | 0.00 |
Clade D | 0.88 | 0.00 |
*GPC, glycoprotein precursor; L, polymerase; NP, nucleoprotein.
†The numbers of nucleotide and amino acid differences per site from averaging over all sequence pairs or all sequence pairs within a clade multiplied by 100 are shown. All positions containing gaps and missing data were eliminated. Values for clade E defined for GPC and L sequences were not calculated because clade E contained only 1 sequence.
1These authors contributed equally to this article.