Table 1. Category of SNPs on the Japonica array.
| Category | Number of SNPsa | Array occupancy rate |
|---|---|---|
| Tag SNPs (including X chromosome) | 638 269 | 96.8% |
| Pharmacogenomics markers | 2028 | 0.31% |
| Y chromosome | 275 | 0.04% |
| Mitochondria | 70 | 0.01% |
| NHGRI GWAS catalog | 10 798 | 1.64% |
| HLA | 3906 | 0.59% |
| Untaggable functional SNPs | 3990 | 0.61% |
| Total | 659 253 | — |
Abbreviations: GWAS, genome-wide association studies; SNP, single nucleotide polymorphism.
Some SNPs are overlapped among categories.