Summary

Name FZD4
Full Name Frizzled-4
Synonyms Fz-4, hFz4, FzE4
Primary ID Q9ULV1
Links - -
Type protein
Relations 11
Pathways Acute Myeloid Leukemia, FAP: Wnt, FLT3-ITD in AML
Function Receptor for Wnt proteins (PubMed:30135577). 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 (PubMed:30135577). Plays a critical role in retinal vascularization by acting as a receptor for Wnt proteins and norrin (NDP) (By similarity). 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 (By similarity). 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.

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Relations

Regulator Mechanism target score
+ up-regulates activity img/direct-activation.png binding DVL3 0.57
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png binding LRP5 0.694
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png binding FZD4 0.728
Publications: 1 Organism: Homo Sapiens
+ up-regulates quantity by expression img/indirect-activation.png transcriptional regulation FZD4 0.2
Publications: 2 Organism: Mus Musculus
Pathways:Acute Myeloid Leukemia, FLT3-ITD in AML
+ up-regulates activity img/direct-activation.png binding DVL1 0.593
Publications: 1 Organism: Homo Sapiens
Pathways:Acute Myeloid Leukemia, FLT3-ITD in AML
+ up-regulates activity img/direct-activation.png binding DVL2 0.741
Publications: 2 Organism: Homo Sapiens
+ down-regulates quantity img/direct_inhibition.png ubiquitination FZD4 0.547
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png binding LRP6 0.635
Publications: 1 Organism: Homo Sapiens
+ down-regulates quantity img/direct_inhibition.png ubiquitination FZD4 0.32
Publications: 1 Organism: Homo Sapiens