Article: New biological chemistry study findings recently were reported by researchers at University of Oxford.

"Communication between the cell surface and the nucleus is essential for regulated gene expression. In neurons, Ca2+-dependent gene transcription is sensitive to local Ca2+ entry," scientists in Oxford, the United Kingdom report.

"In immune cells, excitation-transcription coupling is thought to involve global Ca2+ signals. Here, we show that in mast cells, Ca2+ microdomains from store-operated Ca2+ release-activated Ca2+ channels activate expression of the transcription factor c-fos. Local Ca2+ entry is sensed by the tyrosine kinase Syk, which signals to the nucleus through the transcription factor STAT5. Ca2+ microdomains also promote secretion of ...

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