MAPK11 (Mitogen-activated protein kinase 11) is a member of the MAP kinase family. MAP kinases act as an integration point for multiple biochemical signals, and are involved in a wide variety of cellular processes such as proliferation, differentiation, transcription regulation and development. This kinase is most closely related to p38 MAP kinase, both of them can be activated by proinflammatory cytokines and environmental stress. This kinase is activated through its phosphorylation by MAP kinase kinases (MKKs),Porcinereferably by MKK6. Transcription factor ATF2/CREB2 has been shown to be a substrate of this kinase.