Dishevelled (Dvl-2) activates canonical Wnt signalling in the absence of cytoplasmic puncta.

摘要: Dishevelled family proteins are multidomain intracellular transducers of Wnt signals. Ectopically expressed mammalian 2 (Dvl-2) activates downstream signalling and localises to cytoplasmic puncta. It has been suggested that these Dvl-2-containing structures correspond vesicles may be involved in the signal transduction process. We report puncta primarily formed cells expressing Dvl-2 at high levels. Lower levels expression can activate without forming The do not localise with markers early or late endocytic pathway time-lapse analysis demonstrates move a random fashion over short distances but originate from plasma membrane. Based on our findings, we propose protein aggregates required for signalling.