| 摘要 |
Compositions and methods are provided for the treatment of conditions associated with cell proliferation, cell differentiation and cell survival. In particular, the dual-specificity phosphatase DSP-4, and polypeptide variants thereof that stimulate dephosphorylation of DSP-4 substrates, are provided. The polypeptides may be used, for example, to identify antibodies and other agents that inhibit DSP-4 activity. The polypeptides and agents may be used to modulate cell proliferation, differentiation and survival.
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