[Structural reorganizations of the lipids and proteins of erythrocyte membranes under the action of low temperatures].
The reversible structural rearrangement of lipids and protein oligomerization has been shown to occur during cooling in membranes of model systems (liposome, erythrocyte shadows) and native erythrocytes. Analysing the dependence of Azz in membrane probes (5- or 15-doxylstearic acids) in the Arrhenius plots a conclusion on the structural changes at 13-19 degrees C and within the range of interior water freezing from -17 up to -19 degrees C has been drawn, the last transition is smoothed out in the presence of glycerin. Using diamide joining spectrin and electrophoresis in polyacrylamide gel it has been determined that the low temperatures cause the spatial approach of proteins of spectrin-actinic complex and formation connections between the erythrocyte membrane proteins which aren't destroyed by dodecylsulfate.
Gulevskiĭ
A K
AK
Riazantsev
V V
VV
Belous
A M
AM
D003080:Cold Temperature; D003432:Cross-Linking Reagents / Q000494:pharmacology; D004578:Electron Spin Resonance Spectroscopy; D004591:Electrophoresis, Polyacrylamide Gel; D004910:Erythrocyte Membrane / Q000032:analysis / Q000187:drug effects / Q000648:ultrastructure*; D006801:Humans; D008051:Lipid Bilayers / Q000032:analysis; D008081:Liposomes / Q000032:analysis; D008563:Membrane Lipids / Q000032:analysis*; D008565:Membrane Proteins / Q000032:analysis / Q000187:drug effects / Q000648:ultrastructure*; D013696:Temperature
D003432:Cross-Linking Reagents; D008051:Lipid Bilayers; D008081:Liposomes; D008563:Membrane Lipids; D008565:Membrane Proteins
Strukturnye perestroĭki lipidov i belkov membran éritrotsitov pri deĭstvii nizkikh temperatur.