Table 1.

Properties of Arenicola marina’s Hb.

Properties	Hb of Arenicola marina	References
Molecular weight	3600 kDa	[35,44,45]
Size	15 by 25 nm	[44,46]
Shape of central piece	Ellipsoid (hexagonal bilayer)	[46]
O2 binding sites	156	[35,44]
Heme pockets	large	[36,47]
Auto-oxidation rate kox (h−1)	0.014	[35,48]
Redox potential Eo (mV)	−50	[48]
p50	7.05 ± 0.93 mmHg	[40,49]
n50	2.54 ± 0.23	[29]