Calorimetric Study of Helix aspersa Maxima Hemocyanin Isoforms

Table 3

Parameters for the thermal denaturation of HaH isoforms obtained by DSC at scan rate of 1°C min⁻¹. Comparison with data obtained for Hcs of R. thomasiana [11], H. pomatia [12], C. concholepas [13], and H. rubra [27].

Hemocyanin	Tm (°C)	ΔHcal (MJ·mol^−^1)	(kJ·mol^−^1)
H. aspersa β-Hc (β-HaH)	79.88	145 ± 1.0	302.0 ± 6
H. aspersa αD+N-Hc (αD+N-HaH)	80.07	79.8 ± 1.0	596.0 ± 10
R. thomasiana Hc (RtH)	82.4	195 ± 1.0	597.0 ± 20
H. pomatia β-Hc (β-HpH)	84.0	190 ± 1.0	521.0 ± 7
C. concholepas Hc (CCH)	78.0	120 ± 1.0	323.0 ± 2
H. rubra Hc	78.9	—	535.0 ± 65

Main transition.