8 research outputs found

    Differences between muscarinic-receptor- and Ca2(+)-induced inositol polyphosphate isomer accumulation in rat cerebral-cortex slices.

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    Muscarinic-receptor stimulation or depolarization by elevated K+ leads to increased accumulation of [3H]Ins(1,4,5)P3, [3H]Ins(1,3,4,5)P4 and several degradation products of these polyphosphates separated by h.p.l.c. On the other hand, agents such as ionomycin and maitotoxin, which increase intracellular Ca2+ directly, produce a small accumulation of [3H]Ins(1,4,5)P3 and markedly increase [3H]Ins(1,4)P2, but [3H]Ins(1,3,4,5)P4, [3H]Ins(1,3,4)P3 and [3H]Ins(1,3)P2 are virtually unaffected. Ca2(+)-dependent [3H]inositol polyphosphate metabolism may involve different pools of lipids and/or phosphoinositidases

    Structural and functional organization of growing tips of Neurospora crassa hyphae

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    Coatings

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