The quantitative Matrix of HLA-A2
| Amino acid/positions | P1 | P2 | P3 | P4 | P5 | P6 | P7 | P8 | P9 |
| A | 0.52 | -0.67 | -0.25 | -0.29 | -0.35 | -0.55 | -0.10 | -0.34 | -0.05 |
| C | 0.00 | -2.00 | -0.40 | 0.29 | 1.00 | 1.67 | 1.33 | 0.67 | 1.00 |
| D | -1.60 | -2.00 | 0.08 | 0.34 | -0.75 | -0.86 | -0.82 | -0.40 | -1.69 |
| E | -1.41 | -1.64 | -1.48 | -0.05 | -0.43 | -0.92 | -1.08 | -0.04 | -2.00 |
| F | 0.00 | -1.08 | 1.05 | -0.40 | 1.28 | 0.27 | 1.39 | -0.53 | -2.00 |
| G | 0.91 | -1.82 | -0.47 | 1.18 | 0.30 | -0.40 | -0.11 | 0.13 | -1.82 |
| H | 0.22 | -2.00 | 0.22 | 0.22 | -0.29 | -0.50 | 0.93 | -0.22 | -2.00 |
| I | -0.27 | 0.89 | -0.62 | -1.09 | -0.62 | 0.00 | -0.27 | -0.07 | 0.00 |
| K | 0.25 | -1.47 | -1.14 | -0.75 | -0.77 | -1.56 | -1.20 | -0.63 | -1.43 |
| L | 0.51 | 1.62 | 1.24 | -0.29 | 0.19 | 0.44 | 0.38 | 0.22 | 1.31 |
| M | -0.67 | 1.47 | 0.29 | 1.43 | 1.33 | 1.67 | 0.00 | 0.40 | 1.00 |
| N | -0.22 | -2.00 | 0.29 | -1.00 | -1.11 | -0.82 | -0.22 | -0.44 | -2.00 |
| P | -0.50 | -2.00 | -0.50 | 0.59 | 0.62 | 0.88 | 0.17 | 0.11 | -2.00 |
| Q | -0.75 | -1.14 | -1.64 | 0.26 | -0.82 | -0.35 | -0.22 | 0.33 | -1.33 |
| R | 0.17 | -0.86 | -0.29 | 0.32 | -0.11 | -1.11 | -0.80 | -0.15 | -1.20 |
| S | 0.76 | -2.00 | 0.40 | 0.50 | 0.00 | 0.11 | -0.53 | 0.10 | -1.08 |
| T | -0.88 | -0.75 | -0.81 | -0.92 | -0.50 | -0.67 | -0.24 | 0.92 | -0.71 |
| V | -0.81 | -0.88 | 0.22 | -0.83 | 0.00 | 1.23 | 0.44 | -0.50 | 1.38 |
| W | -1.38 | -1.60 | -0.10 | -1.64 | -0.11 | -1.47 | -0.86 | -1.00 | -2.00 |
| X | 2.00 | 2.00 | 0.00 | 0.00 | 0.00 | 2.00 | 2.00 | 0.00 | 0.00 |
| Y | -0.12 | -2.00 | 0.09 | -2.00 | 0.43 | -0.12 | -0.25 | 0.00 | -1.43 |
| Thresold(%) | 1% | 2% | 3% | 4% | 5% | 6% | 7% | 8% | 9% | 10% |
| Value | 3.45 | 2.68 | 2.19 | 1.82 | 1.52 | 1.27 | 1.04 | 0.85 | 0.66 | 0.50 |