Table 3.

Oxygen-binding parameters for Hb solutions

Hemoglobin	p50 (torr)	n-Hill (max)a
βV1M	6.8 ± 0.8	2.8 ± 0.2
βY35F	11.7 ± 1.0	2.4 ± 0.2
βY35A	1.7 ± 0.2	2.7 ± 0.2

^a The Hill plots of these data are asymmetrical with the maximum Hill coefficients occurring in the second half of the saturation process. This is similar to the findings of Doyle et al. (1992) for the βV1M construct.