Model Asymmetric Plasma Membrane Exhibits a Microemulsion in both Leaves Providing a Foundation for “RAFTS”

Strongly Correlated Rafts in Both Leaves of an Asymmetric Bilayer.

I consider a model of a bilayer characterized by two order parameters, one in each leaf. That of the inner leaf represents the difference in mole fractions of lipids with large spontaneous curvature, phosphatidylethanolamine (PE), and those with small spontaneous curvatures, phosphatidylcholine (PC) and phosphatidylserine (PS). Similarly, the order parameter in the outer leaf represents the dif...

passivity in waiting for godot and endgame: a psychoanalytic reading

this study intends to investigate samuel beckett’s waiting for godot and endgame under the lacanian psychoanalysis. it begins by explaining the most important concepts of lacanian psychoanalysis. the beckettian characters are studied regarding their state of unconscious, and not the state of consciousness as is common in most beckett studies. according to lacan, language plays the sole role in ...

Lipid rafts in the plant plasma membrane?

In order to study the molecular characteristics of an integral membrane protein, first the protein should be solubilized. Ascorbate-reducible b-type cytochromes are highly hydrophobic integral membrane proteins with six trans-membrane α-helices. A fully ascorbatereducible b-type cytochrome was easily solubilized by Triton X-100 from phase partitionpurified plasma membranes of 5-day-old etiolate...

Dynamic Analysis of Asymmetric Structures Supported by a Sliding Foundation

Model of a raft in both leaves of an asymmetric lipid bilayer.

We present a theory of inhomogeneities in the plasma membrane, or rafts, that can exist in both leaves of the plasma membrane. We note that although neither of the major phospholipid components of the outer leaf, sphingomyelin (SM) nor phosphatidylcholine (PC), evinces a tendency to form phases characterized by nonzero curvature, one of the major components of the inner leaf, phosphatidylethano...