Incorporation of Phospholipid Analogs into the Plasma Membrane Affects ATP-Induced Vesiculation of Human Erythrocyte Ghosts

The influence of various spin-labelled phospholipid analogues on the ATP-dependent vesiculation of human erythrocyte ghosts at 37°C was investigated by monitoring the acetylcholinesterase activity. After incorporation of analogues into the outer leaflet a decline of endocytic vesiculation was observ...

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Veröffentlicht in:Biochemical and biophysical research communications 1994-03, Vol.199 (2), p.881-887
Hauptverfasser: Muller, P., Pomorski, T., Herrmann, A.
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container_title Biochemical and biophysical research communications
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creator Muller, P.
Pomorski, T.
Herrmann, A.
description The influence of various spin-labelled phospholipid analogues on the ATP-dependent vesiculation of human erythrocyte ghosts at 37°C was investigated by monitoring the acetylcholinesterase activity. After incorporation of analogues into the outer leaflet a decline of endocytic vesiculation was observed. However, suppression was arrested after about 20 min when ghosts have been labelled with a phosphatidylserine analogue known to redistribute rapidly to the inner leaflet. These data suggest that vesiculation of erythrocyte ghosts is affected by differential expansion of the inner and outer leaflet.
doi_str_mv 10.1006/bbrc.1994.1311
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ispartof Biochemical and biophysical research communications, 1994-03, Vol.199 (2), p.881-887
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subjects Acetylcholinesterase - blood
Adenosine Triphosphate - pharmacology
Biological and medical sciences
Biological membranes
Endocytosis - drug effects
Erythrocyte Membrane - drug effects
Erythrocyte Membrane - metabolism
Fundamental and applied biological sciences. Psychology
Humans
Kinetics
Membrane Lipids - blood
Membrane physicochemistry
Molecular biophysics
Phospholipids - blood
Spin Labels
Structure-Activity Relationship
Time Factors
title Incorporation of Phospholipid Analogs into the Plasma Membrane Affects ATP-Induced Vesiculation of Human Erythrocyte Ghosts
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