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Université de Fribourg

Calretinin regulates Ca²⁺-dependent inactivation and facilitation of Cav2.1 Ca²⁺ channels through a direct interaction with the α₁2.1 subunit

Christel, Carl J. ; Schaer, Raphael ; Wang, Shiyi ; Henzi, Thomas ; Kreiner, Lisa ; Grabs, Detlev ; Schwaller, Beat ; Lee, Amy

In: Journal of Biological Chemistry, 2012, p. -

Voltage-gated Cav2.1 Ca2+ channels undergo dual modulation by Ca2+, Ca2+-dependent inactivation (CDI) and facilitation (CDF), which can influence synaptic plasticity in the nervous system. While the molecular determinants controlling CDI and CDF have been the focus of intense research, little is known about the factors regulating these processes in neurons. Here, we show that calretinin (CR), a...

Université de Fribourg

A bipartite butyrate-responsive element in the human calretinin (CALB2) promoter acts as a repressor in colon carcinoma cells but not in mesothelioma cells

Häner, Katrin ; Henzi, Thomas ; Pfefferli, Martine ; Künzli, Esther ; Salicio, Valerie ; Schwaller, Beat

In: Journal of Cellular Biochemistry, 2010, vol. 109, no. 3, p. 519-531

The short-chain fatty acid butyrate plays an essential role in colonic mucosa homeostasis through the capacity to block the cell cycle, regulate differentiation and to induce apoptosis. The beneficial effect of dietary fibers on preventing colon cancer is essentially mediated through butyrate, derived from luminal fermentation of fibers by intestinal bacteria. In epithelial cells of the colon,...

2 results 1