Table 1.
Heterotropic effects at half-saturation (P50) for coast and eastern mole hemoglobin
| Eastern mole | Coast mole | |||
| Hb I | Hb II | Hb I | Hb II | |
| Δlog P50/Δlog [Cl-]1,2 | 0.21 | 0.25 | 0.31 | 0.33 |
| Δlog P50± 2.5 mM DPG1,3 | 0.02 | 0.02 | 0.26 | 0.23 |
| Δlog P50/ΔpH4 | ||||
| 25°C, 0.1 M Cl- | -0.57 | -0.61 | -0.55 | -0.62 |
| 37°C, 'stripped' | -0.40 | -0.41 | -0.32 | -0.44 |
| 37°C, 0.1 M Cl- | -0.51 | -0.52 | -0.54 | -0.59 |
| 37°C, 0.1 M Cl- + 2.5 mM DPG | -0.63 | -0.73 | -0.86 | -0.78 |
| Oxygenation enthalpy; ΔH (kJ mol-1 O2)5 | -13.7 | -10.3 | -9.7 | -7.6 |
1pH = 7.2
2[DPG] = 0 mM
3[Cl-] = 0.1 M
4over pH range 6.9-7.4; PCO2 = 0 mm Hg
5[Cl-] = 0.1 M; [DPG] = 0 mM; pH = 7.2