The quantitative Matrix of HLA-A2.1
| Amino acid/positions | P1 | P2 | P3 | P4 | P5 | P6 | P7 | P8 | P9 |
| A | -0.98 | -0.64 | 0.31 | 0.69 | 0.69 | 2.02 | 0.02 | -0.64 | 0.31 |
| C | -1.98 | 0.02 | 0.00 | 0.02 | 0.00 | 2.02 | 2.02 | 2.02 | -1.98 |
| D | -1.98 | -1.98 | 1.02 | 0.02 | -0.64 | 0.02 | -1.98 | -1.98 | -1.98 |
| E | -1.98 | -1.98 | -1.98 | 1.62 | -0.48 | -1.18 | 2.02 | 0.24 | -1.98 |
| F | 0.02 | -1.98 | -0.64 | 1.02 | 0.02 | 1.02 | 1.22 | -0.48 | -1.98 |
| G | 1.66 | -1.98 | 0.02 | 0.42 | -0.64 | 2.02 | -0.48 | 0.69 | -1.98 |
| H | 1.02 | 0.00 | -1.98 | 0.00 | 0.02 | -1.98 | 2.02 | -1.98 | 0.00 |
| I | 2.02 | 0.02 | 0.69 | -1.98 | -1.98 | -1.98 | 0.88 | -1.98 | 5.88 |
| K | 0.42 | -1.98 | -1.98 | 0.31 | -1.98 | -1.18 | -1.98 | -1.98 | -1.98 |
| L | -0.31 | 6.08 | 0.02 | -1.18 | -0.26 | 0.57 | -0.20 | 1.22 | 6.02 |
| M | -1.98 | 5.42 | 0.02 | -0.64 | -0.64 | 0.00 | -1.98 | 2.02 | 2.02 |
| N | -1.98 | -1.98 | 1.45 | 0.00 | 1.02 | 0.24 | 2.02 | -0.64 | 0.00 |
| P | -1.31 | -1.98 | 2.02 | 0.52 | 0.52 | 0.24 | 1.02 | 2.02 | -1.98 |
| Q | 0.88 | -1.98 | -1.98 | 2.02 | -0.64 | 0.02 | -0.98 | -0.38 | -1.31 |
| R | -0.38 | -1.98 | -1.98 | -0.38 | 0.69 | 2.02 | -1.98 | 2.02 | -1.98 |
| S | -1.98 | -1.98 | -0.48 | -0.98 | -1.98 | 0.69 | -1.31 | -0.98 | -1.98 |
| T | 0.02 | -1.98 | -0.64 | 0.02 | 0.02 | -1.98 | -0.83 | -0.98 | -0.13 |
| V | -0.38 | 0.02 | -0.64 | -1.18 | 0.42 | 0.02 | -0.64 | -1.09 | 6.13 |
| W | 0.00 | 0.00 | 2.02 | 0.00 | 2.02 | 0.00 | 0.00 | 2.02 | 0.00 |
| X | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Y | 2.02 | 0.00 | -0.98 | 0.00 | 0.69 | 0.02 | 2.02 | 0.00 | -1.98 |
| Thresold(%) | 1% | 2% | 3% | 4% | 5% | 6% | 7% | 8% | 9% | 10% |
| Value | 12.29 | 10.48 | 9.33 | 8.50 | 7.84 | 7.29 | 6.81 | 6.39 | 6.01 | 5.65 |