Molecular dissection of Wnt3a-Frizzled8 interaction reveals essential and modulatory determinants of Wnt signaling activity. - Kumar S; Žigman M; Patel TR; Trageser B; Gross JC; Rahm K; Boutros M; Gradl D; Steinbeisser H; Holstein T; Stetefeld J; Özbek S (BMC biology, 2014)