Table 1 Heterotropic effects at half-saturation (P50) for coast and eastern mole hemoglobin
From: Molecular basis of a novel adaptation to hypoxic-hypercapnia in a strictly fossorial mole
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 |