Sustained elevation in inositol 1,4,5-trisphosphate results in inhibition of phosphatidylinositol transfer protein activity and chronic depletion of the agonist-sensitive phosphoinositide pool.

@article{Speed2000SustainedEI,
  title={Sustained elevation in inositol 1,4,5-trisphosphate results in inhibition of phosphatidylinositol transfer protein activity and chronic depletion of the agonist-sensitive phosphoinositide pool.},
  author={Caroline J Speed and Christina A Mitchell},
  journal={Journal of cell science},
  year={2000},
  volume={113 ( Pt 14)},
  pages={2631-8}
}
The 43 kDa inositol polyphosphate 5-phosphatase (5-phosphatase) hydrolyses the signalling molecules inositol 1,4,5-trisphosphate (Ins(1,4,5)P(3)) and inositol 1,3,4,5-tetrakisphosphate (Ins(1,3,4, 5)P(4)) in a signal-terminating reaction. We have utilised cell lines that stably underexpress the 43 kDa 5-phosphatase, as a model system to investigate whether Ins(1,4,5)P(3) can control the rate of its own formation by regulating the resupply of phosphatidylinositol 4,5-bisphosphate (PtdIns(4,5)P(2… CONTINUE READING

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BioEssays : news and reviews in molecular, cellular and developmental biology • 1998
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