Polyphosphoinositides in myelin
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چکیده
منابع مشابه
Polyphosphoinositides in Rat Adrenal Capsules In Vitro
corticosterone production and capsular concentrations of phosphatidic acid, phosphatidyl-inositol, and polyphosphoinositides. These effects are similar to those previously reported for ACTH in the whole adrenal cortex. A common mechanism, i.e., activation of the phosphatidate-polyphosphoinositide cycle, may be operative in the action of steroidogenic agents in their
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THE POLYPHOSPHOINOSITIDES, phosphatidyl inositol phosphate and bisphosphate, have been found as trace lipids in yeast (TALWALKAR & LESTER, 1973), protozoans (PALMER, 1973). and mammals (FOLCH, 1949). In mammals, these lipids are thought to be particularly enriched in neural tissue where they have been shown to undergo changes in metabolism with stimulation of the tissue (see MICHELL, 1975; HAWT...
متن کاملThe distribution of polyphosphoinositides in lipid films.
Fluorescence microscopy of Langmuir films is used to determine the effect of polyphosphoinositides (PPIs) on the structure of phosphatidylcholine-containing monolayers. Dramatic alterations in the texture of these films occur as the fraction of PPI in the film is altered. These changes depend on the ionic strength of the underlying subphase and can be accounted for by considering the electrosta...
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When a membrane preparation, obtained by freezing and thawing nerve endings labeled by preincubation with 32pi, is incubated in the presence of millimolar Ca2+, there is a rapid and selective loss of label from the polyphosphoinositides and a concomitant increase in labeled inositol di- and triphosphates recovered. When the membranes are not prelabeled and are exposed to [gamma-32P]ATP under si...
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BACKGROUND The cytoplasm of eukaryotic cells is a highly dynamic compartment where membranes readily undergo fission and fusion to reorganize the cytoplasmic architecture, and to import, export and transport various cargos within the cell. The double membrane of the nuclear envelope that surrounds the nucleus, segregates the chromosomes from cytoplasm and regulates nucleocytoplasmic transport t...
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ژورنال
عنوان ژورنال: Biochemical Journal
سال: 1965
ISSN: 0006-2936
DOI: 10.1042/bj0960644