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The number of charged residues and pI for four representative lysozymes. Histidines have been excluded from the positive set.
| OhLys | Bovine | House Fly | HEWL | |
|---|---|---|---|---|
| No. Residues | 126 | 129 | 122 | 129 |
| Negative Charge: Asp and Glu | 20 | 15 | 9 | 9 |
| Positive Charge: Arg and Lys | 13 | 14 | 10 | 17 |
| Ratio (negative/positive) | 1.5 | ≈1 | ≈1 | 0.5 |
| Total Charged | 33 | 29 | 19 | 26 |
| Theoretical pI | 5.1 | 6.5 | 7.7 | 9.3 |
