Comparison of the env gene amino acid sequences derived from cluster viruses with subtype B consensus sequence.

35 common mutated positions detected in at least 5 of the cluster viruses are shown in color amino acids. Boxes marked the unusual amino acid whose presence in the cluster is statistically significant when compared with the reference amino acid sequence sets used in the study (see Table 3).

本研究中，于至少5株聚类病毒内检出的35个常见突变位点，以彩色氨基酸残基形式展示。相较于本研究使用的参考氨基酸序列集，在该聚类病毒群中出现频率具备统计学显著性的异常氨基酸，均以方框标记（详见表3）。