... mitogen-activated protein kinases (MAP-Ks), MPK3 and MPK6, in response to oxidative stress. In addition, theserine ⁄ threonine protein kinase Pto-interacting 1-2 (PTI1- 2) has beenpositioned downstream ... protein kinase; MAPKK, mitogen-activated protein kinase kinase; MBP, myelin basic protein; OXI1, oxidativesignal-inducible 1; PDK1, 3-phosphoinositide-dependent kinase 1; PTI1, Pto-interacting ... protein kinase PINOID. Cell 100, 469–478.12 Benjamins R, Quint A, Weijers D, Hooykaas P &Offringa R (200 1) The PINOID protein kinase regulatesorgan development in Arabidopsis by enhancing...