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. 2022 Apr 26;7:138. doi: 10.1038/s41392-022-00992-2

Table 2.

Novel mutations identified in the spike protein of the recently emerged Omicron subvariants (emerged before 15 January 2022; frequency > 50 sequences)

Spike region Position New Mutation Frequency Percentage Mutation in VOCs & VOIs Early event occurrence time First country emerging
S1 5 L5F 184 0.37% Iota(L5F) 2021.11.19 South Africa
NTD 76 T76I 51 0.10% Lambda (T76I) 2021.11.26 Netherlands
141 L141F 56 0.11% 2021.11.19 South Africa
142 G142Y 51 0.10% 2021.12.16 USA
156 deletion 68 0.14% Delta(del156) 2021.12.13 USA
157 deletion 71 0.14% Delta(del157) 2021.12.13 USA
158 R158G 69 0.14% Delta(E158G) 2021.12.15 USA
RBD 346 R346K 16819 33.90% Mu(R346K) 2021.11.4 Canada
452 L452R 897 1.81% Delta(L452R) 2021.11.11 South Africa
SD 643 F643L 138 0.28% 2021.11.29 Thailand
681 P681R 62 0.12% Delta(P681R) 2021.11.23 Botswana
S2 701 A701V 2729 5.50% Beta(A701V) 2021.11.10 South Africa
1081 I1081V 351 0.71% 2021.11.18 U.K.
1147 S1147L 120 0.24% 2021.12.13 USA
1162 P1162S 60 0.12% 2021.12.10 Canada