FEATURES

FAMILY

G-protein coupled receptor Fz/Smo family

DESCRIPTION

Also known as FZD7_HUMAN, FZD7. Receptor for Wnt proteins. Most frizzled receptors are coupled to the beta-catenin canonical signaling pathway, which leads to the activation of disheveled proteins, inhibition of GSK-3 kinase, nuclear accumulation of beta-catenin and activation of Wnt target genes. A second signaling pathway involving PKC and calcium fluxes has been seen for some family members, but it is not yet clear if it represents a distinct pathway or if it can be integrated in the canonical pathway, as PKC seems to be required for Wnt-mediated inactivation of GSK-3 kinase. Both pathways seem to involve interactions with G-proteins. Activation by WNT8 induces expression of beta-catenin target genes (By similarity). Following ligand activation, binds to CCDC88C/DAPLE which displaces DVL1 from FZD7 and leads to inhibition of canonical Wnt signaling, activation of G-proteins by CCDC88C and triggering of non-canonical Wnt responses (PubMed:26126266). May be involved in transduction and intercellular transmission of polarity information during tissue morphogenesis and/or in differentiated tissues., (Microbial infection) Acts as a receptor for C.difficile toxin TcdB in the colonic epithelium. Interacts with MAGI3 (By similarity). Interacts with DVL1 (By similarity). Interacts with CCDC88C/DAPLE; the interaction displaces DVL1 from FZD7, leading to inhibition of canonical Wnt signaling and triggering of non-canonical Wnt responses (PubMed:26126266). Interacts with MYOC (PubMed:19188438). Binds to SDCBP; this interaction is increased by inositol trisphosphate (IP3) (PubMed:27386966). Interacts with glypican GPC3 (PubMed:24496449).

EXTERNAL LINKS

FZD7

Frizzled-7

FZD7

Molecular Synopsis