Osmoregulation -- Congresses. : Osmoregulation in estuarine and marine animals : proceedings of the invited lectures to a symposium organized within the 5th Conference of the European Society for Comparative Physiology and Biochemistry, Taormina, Sicily, Italy, September 5-8, 1983 / edited by A. Pequeux, R. Gilles, and L. Bolis
A family of transcription factors characterized by the presence of highly conserved calcineurin- and DNA-binding domains. NFAT proteins are activated in the CYTOPLASM by the calcium-dependent phosphatase CALCINEURIN. They transduce calcium signals to the nucleus where they can interact with TRANSCRIPTION FACTOR AP-1 or NF-KAPPA B and initiate GENETIC TRANSCRIPTION of GENES involved in CELL DIFFERENTIATION and development. NFAT proteins stimulate T-CELL activation through the induction of IMMEDIATE-EARLY GENES such as INTERLEUKIN-2
The response of cells in sensing a difference in OSMOTIC PRESSURE between the inside and outside of the cell. This response includes signaling from osmotic sensors to activate transcription factors, which in turn regulate the expression of osmocompensatory genes, all functioning to maintain CELL VOLUME and the water concentration inside the cells