Function
Multifunctional effector that can suppress host BAK1/SERK3-mediated immunity through at least two different pathways (PubMed:19794118, PubMed:20457921, PubMed:21348873, PubMed:26348328). Manipulates plant immunity by targeting and stabilizing host E3 ligase CMPG1. Preventing the normal 26S proteasome-dependent degradation of potato CMPG1, and thus potentially of its protein substrates in the host cell, further abolishes host cell death during the biotrophic phase of infection (PubMed:19794118, PubMed:20457921, PubMed:21348873). Associates with and affects also the function of the dynamin-related protein 2 (DRP2), a plant GTPase involved in immune receptor-mediated endocytosis (PubMed:26348328). The Avr3a(EM) form evades recognition by R3a, thus does not trigger R3a-mediated hypersensitivity and does not suppress INF1-induced cell death (PubMed:15894622, PubMed:16965554, PubMed:19245321).