Table 1. Secondary structure composition of Hb and Mb, determined from Far UV CD spectra in different media at 20°C determined by K2D3.

Sample	α-sheet (%)	β-sheet (%)
Hb	67	8.00
Hb + Air	68	8.01
Hb + N2	60	10.00
Hb + Ar	66	9.00
Mb	90	0.40
Mb + Air	91	0.30
Mb + N2	65	2.00
Mb + Ar	87	0.40