Table 2.
Comparison between the properties of Arenicola marina’s Hb and human Hb under human physiological conditions (pH 7–8).
| Properties | Arenicola marina’s Hb | Human Hb | References |
|---|---|---|---|
| Colloid oncotic pressure | 1 mm Hg | [35,40] | |
| Size/weight | 3600 kDa | 64458 Da | [35] |
| Half life | 50 h | few seconds | [35,40] |
| Working temperature range | Broad (4 °C to 37 °C) | 37 °C | [35,40] |
| p50 (mmHg) | 7.05 ± 0.93 | 8–18 | [35,40,58] |
| n50 | 2.54 ± 0.23 | 2.3–3.0 | [35,40,59] |
| Bohr coefficient | −0.5 | −0.48 | [35,40,60] |
| Δ H (KJmol−1) | −19 | −50.7 | [35,40,61] |
| COP (mmHg) | 1.0 | nd | [40] |
| Viscosity (cP) | 1.23 | nd | [40] |
| SOD activity (U/mg Hb) | 3.53 ± 0.02 | 0 | [40] |
| Cyanide (CN) inhibition | 100% | 100% | [40] |
| Fe (atom/molecule) | 156 | 4 | [40] |
| Cu (atom/molecule) | 3.58 ± 1.17 | 0 | [40] |
| Zn (atom/molecule) | 5.13 ± 0.75 | 0 | [40] |