alexa Nuclear calcium: a key regulator of gene expression.
Engineering

Engineering

Journal of Electrical & Electronic Systems

Author(s): Hardingham GE, Bading H

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Abstract Through the evolution of multicellular organisms, calcium has emerged as the preferred ion for intracellular signalling. It now occupies a pivotal role in many cell types and nowhere is it more important than in neurons, where it mediates both the relaying and long-term storage of information. The latter is a process that enables learning and memory to be formed and requires the activation of gene expression by calcium signals. Evidence from a number of diverse organisms shows that transcription mediated by the transcription factor CREB is critical for learning and memory. Here we review the features of CREB activation by calcium signals in mammalian cells. In contrast to other transcription factors, its regulation is dependent on an elevation of nuclear calcium concentration, potentially placing this spatially distinct pool of calcium as an important mediator of information storage.
This article was published in Biometals and referenced in Journal of Electrical & Electronic Systems

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