Table 1.

Phase transitions in lipid membranes in the presence of α-crystallin and HSP17 (molar ratio lipid/protein in parentheses)

Lipid	Pretransition, °C	Main transition, °C	Nonlamellar transition, °C
DMPG in buffer	18.0  ± 0.2	28.0  ± 0.3
DMPG/αC (55:1)	17.0  ± 0.3	24.3  ± 0.4
DMPG/HSP17 (55:1)	16.6  ± 0.3	24.2  ± 0.3
DMPS in buffer		39.6  ± 0.2
DMPS/αC (55:1)		38.0  ± 0.4
DMPS/HSP17 (55:1)		37.4  ± 0.3
DEPE in buffer		38.1  ± 0.2	61.3  ± 0.4
DEPE/HSP17 (110:1)		38.0  ± 0.3	64.4  ± 0.5
DEPE/HSP17 (55:1)		37.6  ± 0.2	67.8  ± 0.6
DEPE/αC (110:1)		38.0  ± 0.3	63.8  ± 0.6
DEPE/αC (55:1)		37.6  ± 0.4	67.1  ± 0.6
MGDG in buffer			29.7  ± 0.3
MGDG/αC (55:1)			30.8  ± 0.3
MGDG/HSP17 (55:1)			32.0  ± 0.2

Data are derived from DSC studies and are means of at least three measurements in three independent preparations.