Expression of Trp3 determines sensitivity of capacitative Ca2+ entry to nitric oxide and mitochondrial Ca2+ handling: evidence for a role of Trp3 as a subunit of capacitative Ca2+ entry channels.

@article{Thyagarajan2001ExpressionOT,
  title={Expression of Trp3 determines sensitivity of capacitative Ca2+ entry to nitric oxide and mitochondrial Ca2+ handling: evidence for a role of Trp3 as a subunit of capacitative Ca2+ entry channels.},
  author={Baskaran Thyagarajan and Michael Poteser and Christoph Romanin and Heike Kahr and Michael Xi Zhu and Klaus Groschner},
  journal={The Journal of biological chemistry},
  year={2001},
  volume={276 51},
  pages={48149-58}
}
The role of Trp3 in cellular regulation of Ca(2+) entry by NO was studied in human embryonic kidney (HEK) 293 cells. In vector-transfected HEK293 cells (controls), thapsigargin (TG)-induced (capacitative Ca(2+) entry (CCE)-mediated) intracellular Ca(2+) signals and Mn(2+) entry were markedly suppressed by the NO donor 2-(N,N-diethylamino)diazenolate-2-oxide sodium salt (3 microm) or by authentic NO (100 microm). In cells overexpressing Trp3 (T3-9), TG-induced intracellular Ca(2+) signals… CONTINUE READING

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