MKK3-P:MKK6-P MKK3-P:MKK6-P phosphorylated MKK3/MKK6 migrates to nucleus Authored: Shamovsky, V, 2009-12-16 Edited: Shamovsky, V, 2010-02-27 Pubmed7535770 Pubmed9768359 Reactome Database ID Release 43450296 Reactome, http://www.reactome.org ReactomeREACT_21299 Reviewed: Gillespie, ME, 2010-02-27 The p38 activators MKK3 and MKK6 were present in both the nucleus and the cytoplasm, consistent with a role in activating p38 in the nucleus.