Vaccinia H1-related (VHR) phosphatase, also known as dual-specificity phosphatase (DUSP) 3, is a small member of the DUSP (also called DSP) family of phosphatases. VHR has a preference for phospho-tyrosine substrates, and has important roles in cellular signaling ranging from cell-cycle regulation and the DNA damage response to MAPK signaling, platelet activation and angiogenesis. VHR/DUSP3 has been implicated in several human cancers, where its tumor-suppressing and -promoting properties have been described. We give a detailed overview of VHR/DUSP3 phosphatase and compare it with its most closely related phosphatases DUSP13B, DUSP26 and DUSP27.
Keywords: DUSP13B; DUSP26; DUSP27; MAPK signaling; VHR/DUSP3 inhibitors; Vaccinia H1-related phosphatase; cancer; cell-cycle progression; dual specificity phosphatases; protein phosphatases.
© 2015 The Authors. FEBS Journal published by John Wiley & Sons Ltd on behalf of FEBS.