Table VII.
Surface area calculations of the heme accessible surface and the protein contact. Calculations were made for the various pHs of each Hb subunit structure and averaged between the α and β subunits.
| Hb | pH | Heme surface accessible area (Å2) |
Internal protein contact with heme (Å2) |
||
|---|---|---|---|---|---|
| α | β | α | β | ||
| Bovine | 5.7 | 75.2 | 95.0 | 469.5 | 429.8 |
| 6.3 | 72.8 | 93.9 | 445.1 | 427.4 | |
| 8.5 | 67.2 | 84.5 | 457.1 | 437.8 | |
| Trout IV |
5.7 | 82.7 | 99.5 | 423.1 | 432.2 |
| 6.3 | 82.0 | 100.4 | 418.0 | 417.6 | |
| Perch | 5.7 | 89.7 | 81.6 | 457.8 | 472.9 |
| 6.3 | 91.6 | 83.0 | 473.8 | 478.5 | |
| 8.0 | 81.6 | 74.7 | 475.7 | 474.0 | |