Issues

Tyrosine (Tyr) phosphorylation has recently emerged as being important for plant receptor kinase (RK)-mediated signalling, particularly during plant immunity. In this issue Mühlenbeck and colleagues (pp. 2759–2774) discuss the current understanding of plant RK Tyr phosphorylation focusing on the critical role of a pTyr site (‘VIa-Tyr’) conserved in several plant RKs. The cover image shows transmembrane signalling mechanisms in choanozoans and plants involving protein kinases. Image courtesy of Cyril Zipfel.