The quantitative Matrix of HLA-B51
| Amino acid/positions | P1 | P2 | P3 | P4 | P5 | P6 | P7 | P8 | P9 |
| A | -1.67 | 0.40 | -0.40 | -0.46 | 0.00 | -0.22 | -0.18 | 0.00 | -0.15 |
| C | 0.67 | -2.00 | 2.00 | 1.43 | -2.00 | 0.00 | 0.00 | -2.00 | 0.00 |
| D | 0.00 | -2.00 | -0.86 | 1.33 | 0.40 | -0.29 | -0.67 | -2.00 | -2.00 |
| E | -0.67 | -2.00 | -0.86 | 0.25 | -1.64 | -1.50 | -0.86 | -0.67 | -2.00 |
| F | 1.24 | -0.40 | 0.80 | -0.33 | 0.40 | 0.77 | 1.33 | 0.00 | 0.46 |
| G | -0.80 | -1.33 | 0.67 | -0.50 | 0.40 | -0.86 | -1.43 | -0.86 | -1.56 |
| H | 0.40 | -2.00 | 0.00 | 0.00 | 1.00 | 0.00 | 2.00 | 1.20 | -2.00 |
| I | 0.00 | -2.00 | 0.77 | -0.29 | -0.40 | 0.29 | -0.33 | 0.82 | 0.97 |
| K | -2.00 | -1.00 | 1.43 | 0.00 | 0.67 | -0.55 | 0.29 | 0.00 | -2.00 |
| L | 0.95 | -2.00 | 0.00 | -0.67 | 0.15 | 0.40 | 0.10 | -0.40 | 1.23 |
| M | 1.43 | -2.00 | 0.00 | -2.00 | 1.00 | -0.67 | 0.00 | -2.00 | 0.00 |
| N | 0.00 | -2.00 | 0.50 | -0.67 | 0.00 | 0.40 | -0.67 | 1.00 | 0.00 |
| P | -2.00 | 1.78 | -0.18 | 0.77 | 0.95 | 0.00 | -0.40 | 1.00 | -2.00 |
| Q | -0.67 | -2.00 | -0.50 | -0.67 | 0.00 | 1.53 | 0.33 | -0.86 | 0.00 |
| R | -0.67 | -2.00 | 0.22 | 0.33 | 0.00 | -2.00 | 0.33 | 0.00 | -2.00 |
| S | 0.67 | -1.43 | -0.40 | 0.15 | -0.15 | 0.40 | 0.55 | 0.18 | -2.00 |
| T | -0.18 | -2.00 | -0.50 | 0.00 | -0.40 | 0.00 | -1.50 | 0.67 | -1.33 |
| V | 0.67 | -1.00 | 0.33 | -0.86 | 0.00 | -0.86 | 0.00 | 0.00 | 0.96 |
| W | 2.00 | 2.00 | -1.00 | 0.00 | -0.67 | 0.00 | 2.00 | 2.00 | 2.00 |
| X | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Y | 0.00 | -2.00 | -1.33 | 2.00 | -2.00 | 0.00 | 0.40 | 0.40 | 2.00 |
| Thresold(%) | 1% | 2% | 3% | 4% | 5% | 6% | 7% | 8% | 9% | 10% |
| Value | 3.97 | 3.17 | 2.66 | 2.28 | 1.98 | 1.72 | 1.49 | 1.28 | 1.10 | 0.93 |