The ligand-binding pocket of the Dishevelled PDZ domain can be occupied by Dishevelled's own highly conserved C-terminus, inducing a closed conformation that is ‘opened’ when Wnt signaling stimulates interaction between Frizzled and Dishevelled.
In vitro and in cellulo characterization of oligomerization by the cytoplasmic Wnt effector dishevelled and its partner Axin provide new mechanistic principles for Wnt/β-catenin signaling.
The exon junction complex regulates the cell polarity determinant Discs large 1, which acts independently from its role in cell polarity to protect Dishevelled protein from lysosomal degradation in Wingless/Wnt signaling.
An unusual molecular mechanism has been revealed based on ultrastable histidine cluster co-aggregation underlying feedback control of an ancient cell communication pathway.
Senem Ntourmas, Martin Sachs ... Dominic B Bernkopf
Biochemical detection of endogenous, paralog-specific DVL2 complexes, molecular characterization of underlying protein domains and functional evidence for their importance extend the knowledge of Wnt pathway regulation through DVL2 biomolecular condensates.
Casein kinase Iε phosphorylation has opposite effects on the stability of the core planar polarity proteins Strabismus and Dishevelled, leading to their sorting to opposite cell ends.
During zebrafish embryogenesis, dact1 and dact2 are necessary for axis lengthening and craniofacial morphogenesis, and the protease capn8 is misexpressed in dact1/2 mutants.
Sec14l3/SEC14L2 respond to upstream Wnt/Frizzled/Dvl stimulation to recruit and activate phospholipase Cδ4a (Plcδ4a) to further initiate calcium release.
