MAPK, the "anchor" of the relay team, phosphorylates specific transcription factors and regulatory proteins, which causes changes to gene expression (Figure 15.4). (...) Activated components of the MAP kinase pathway, for example, are inactivated by MAP kinase phosphatases, ensuring tight cellular control over the duration and intensity of MAP kinase-mediated signaling (see Figure 15.4).
"Plant Physiology and Development" int'l 6e - Taiz, L., Zeiger, E., Møller, I.M., Murphy, A.














