1). The X residue differs in Every class of MAPKs: ERK provides a threonine–glutamic acid–tyrosine (T–E–Y) motif, JNK contains a threonine–proline–tyrosine (T–P–Y) motif and p38 incorporates a threonine–glycine–tyrosine (T–G–Y) motif. Phosphorylation of the T–X–Y motif activates the MAPKs, making it possible for phosphorylation of a specific repertoire of cytoplasmic and https://rafaelouzch.thenerdsblog.com/24715713/5-simple-statements-about-pco400-explained