. 2005 Jul 26;389(Pt 3):665–673. doi: 10.1042/BJ20050156

Table 1. Kinetic constants of the interaction of β₂GPI with POPC/POPS lipid bilayers at different phosphatidylserine contents and the effect of Ca²⁺ (two-state reaction model).

The results are expressed as the mean±S.E.M., n=3–5, P<0.01.

Phosphatidylserine content (mol%)	[Ca²⁺] (mM)	k_{on, 1} (M⁻¹·s⁻¹×10⁴)	k_{off, 1} (s⁻¹×10⁻¹)	k_{on, 2} (s⁻¹×10⁻²)	k_{off, 2} (s⁻¹×10⁻³)	K_D (nM)
10	3	1.67±0.23	3.35±1.13	3.93±2.28	1.80±0.04	1078±224
20	3	4.62±0.77	1.64±0.08	2.04±0.19	2.05±0.25	339±22
20	0	10.53±0.04	1.99±0.19	0.97±0.02	0.94±0.44	139±30

Table 1. Kinetic constants of the interaction of β2GPI with POPC/POPS lipid bilayers at different phosphatidylserine contents and the effect of Ca2+ (two-state reaction model).