| Post Translational Modifications | Ubiquitinated by ZNRF3, leading to its degradation by the proteasome. |
| Function | Receptor for Wnt proteins. Most frizzled receptors are coupled to the beta-catenin (CTNNB1) canonical signaling pathway, which leads to the activation of disheveled proteins, inhibition of GSK-3 kinase, nuclear accumulation of beta-catenin (CTNNB1) and activation of Wnt target genes. Plays a critical role in retinal vascularization by acting as a receptor for Wnt proteins and norrin (NDP). In retina, it can be activated by Wnt protein-binding and also by Wnt-independent signaling via binding of norrin (NDP), promoting in both cases beta-catenin (CTNNB1) accumulation and stimulation of LEF/TCF-mediated transcriptional programs. 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. May be involved in transduction and intercellular transmission of polarity information during tissue morphogenesis and/or in differentiated tissues. |
| Protein Name | Frizzled-4Fz-4Hfz4Fze4Cd Antigen Cd344 |
| Database Links | Reactome: R-HSA-373080Reactome: R-HSA-4086398Reactome: R-HSA-4608870Reactome: R-HSA-4641263Reactome: R-HSA-5099900Reactome: R-HSA-5340588Reactome: R-HSA-8856825Reactome: R-HSA-8856828 |
| Cellular Localisation | Cell MembraneMulti-Pass Membrane Protein |
| Alternative Protein Names | Frizzled-4 proteinFz-4 proteinHfz4 proteinFze4 proteinCd Antigen Cd344 proteinFZD4 protein |
Information sourced from Uniprot.org
