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. 2021 Dec 20;50(1):333–349. doi: 10.1093/nar/gkab1248

Table 3.

Conservation of siRNA target sites in circulating SARS-CoV-2 strains. Full-length, high-quality SARS-CoV-2 sequencing results were retrieved from the GISAID EpiCoV™ Database (www.gisaid.org) and analyzed for the presence of the siRNA target sites. To estimate conservation within all currently circulating strains (‘Any variant’), the 100,000 latest submissions until October 26th 2021 were included without restricting to a specific variant. Lineages defined by WHO as Variants of Concern (VoC) or Variants of Interest (VoI) were separately downloaded and analyzed accordingly. For VoC, only the latest 20,000 submissions, and for VoI, all available sequences were considered. VoC and VoI are labeled according to WHO nomenclature, for details regarding the included lineages according to the Pango nomenclature system see materials & methods. n, number of analyzed full-length SARS-CoV-2 sequences

Variants of concern Variants of interest
Variant Any variant Alpha Beta Gamma Delta Lambda Mu
Sequences (n) 100 000 20 000 20 000 20 000 20 000 848 5889
siRNA Conservation of target site (Only perfect matches in %)
L1 94.92 95.10 91.15 96.65 93.43 98.23 92.96
L2 39.53 37.34 36.16 29.81 47.39 22.40 28.76
L3 24.11 23.32 26.06 17.43 15.95 16.98 13.04
O1 99.55 99.33 99.83 99.42 99.51 99.76 99.59
O2 99.65 99.46 99.45 99.66 99.33 99.88 99.54
O3 99.90 99.95 99.88 99.93 99.91 100 99.83
N1 99.54 99.60 99.71 99.71 99.55 99.64 99.88
N2 99.68 99.79 99.90 99.89 99.50 99.52 99.06
N3 99.50 99.69 99.77 98.70 99.67 99.29 99.52
U1 96.49 96.89 97.20 91.16 93.78 92.57 90.25
U2 86.64 84.74 86.05 59.20 82.78 89.62 81.28
U3 24.53 38.39 33.49 25.95 35.98 38.44 28.83