Journal
BIOESSAYS
Volume 30, Issue 10, Pages 994-1002Publisher
JOHN WILEY & SONS INC
DOI: 10.1002/bies.20822
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Thirty years after its initial characterization and mitre than 1000 publications listed in PubMed describing its properties, the small (call 5 kDa) protein profilin continues to surprise us with new, recently discovered functions. Originally described as an actin-binding protein, profilin has now been shown to interact with more than a dozen proteins in mammalian cells. Some of the more recently described and intriguing interactions are within neurons involving a neuronal profilin family member. Profilin is now regarded as a regulator of various cellular processes such as cytoskeletal dynamics, membrane trafficking and nuclear transport. Profilin is a necessary element in key steps of neuronal differentiation and synaptic plasticity, and embodies properties postulated for a synaptic tag. These findings identify profilin as an important factor linking cellular and behavioural plasticity in neural circuits. BioEssays 30:994-1002, 2008. (C) 2008 Wiley Periodicals, Inc.
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