Multiple phosphorylation of stathmin. Identification of four sites phosphorylated in intact cells and in vitro by cyclic AMP-dependent protein kinase and p34cdc2

Stathmin is a ubiquitous, highly conserved phosphoprotein which most likely acts as a relay integrating various intracellular pathways regulating cell proliferation, differentiation, and functions. At least 14 molecular forms of stathmin have been identified so far, which migrate as 2 unphosphorylat...

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