The distribution of 12 SNP types among 5003 unique mutations and 467 604 non-unique mutations on the S gene of SARS-CoV-2 worldwide. NU is the number of unique mutations and NNU is the number of non-unique mutations. RU and RNU represent the ratios of 12 SNP types among unique and non-unique mutations.
| SNP type | Mutation type | N U | N NU | R U | R NU |
|---|---|---|---|---|---|
| A > T | Transversion | 454 | 5236 | 9.07% | 1.12% |
| A > C | Transversion | 341 | 2571 | 6.82% | 0.55% |
| A > G | Transition | 700 | 199 015 | 13.99% | 42.56% |
| T > A | Transversion | 356 | 1614 | 7.12% | 0.35% |
| T > C | Transition | 779 | 19 313 | 15.57% | 4.13% |
| T > G | Transversion | 277 | 1940 | 5.54% | 0.41% |
| C > T | Transition | 542 | 158 898 | 10.83% | 33.98% |
| C > A | Transversion | 313 | 10 301 | 6.26% | 2.20% |
| C > G | Transversion | 156 | 968 | 3.12% | 0.21% |
| G > T | Transversion | 435 | 34 421 | 8.69% | 7.36% |
| G > C | Transversion | 225 | 6090 | 4.50% | 1.30% |
| G > A | Transition | 425 | 27 237 | 8.49% | 5.82% |