Surface pressures of REF and SRPP proteins at the air-water interface or in presence of lipid monolayers.

aREF and SRPP were injected at 1 µM in the PBS 1X buffer subphase and pressure was measured when values were at plateau, usually after less than 1 h.
bLipid monolayers were formed at a constant pressure of 28 mN/m and at 25°C. REF and SRPP were then injected at 1 µM in the PBS 1X buffer subphase. ΔP corresponds at the variation of pressure observed after injection of the proteins under the lipid monolayer and the complete stabilization of the interface.