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. 2019 Apr 8;8(1):585–602. doi: 10.1080/22221751.2019.1598291

Figure 1.

Figure 1.

ZIKV NS2A mutagenesis. (A) Sequence alignment of NS2A proteins among ZIKV (strain FSS13025), DENV-1-4 serotypes, WNV, JEV, SLEV, and YFV using CLC Main Workbench software (CLC Bio). Thirty-five amino acids were selected for mutagenesis: (i) All 8 identical non-alanine residues (indicated by triangles), (ii) 25 charged residues (arrows), (iii) a K25/K26/R27 motif (line), (iv) residue N130 (circle). The consensus and conservation percentage are indicated below each amino acids. (B) A summary of ZIKV NS2A mutagenesis results. An infectious cDNA clone and a luciferase replicon of ZIKV strain FSS13025 were used to analyze the function of each amino acid. Based on the replication phenotypes, the 35 mutants could be categorized into five classes as indicated.