Constitutively elevated nuclear export activity opposes Ca2+-dependent NFATc3 nuclear accumulation in vascular smooth muscle: role of JNK2 and Crm-1
The transcription factor NFAT (nuclear factor of activated T-cells) is a cytosolic phosphoprotein that accumulates in the nucleus following dephosphorylation by the calcium (Ca2+)/calmodulin-dependent phosphatase, calcineurin. A defining feature of stimuli that induce NFAT nuclear accumulation/activation is a sustained increase in global intracellular Ca2+. Contrary to expectations, we have found
