Frizzled-4
protein-coding gene in the species Homo sapiens
Frizzled-4 (Fz-4) is a protein that in humans is encoded by the FZD4 gene. Fz-4 has also been designated as CD344 (cluster of differentiation 344).
Function
This gene is a member of the frizzled gene family. Members of this family encode seven-transmembrane domain proteins that are receptors for the Wingless type MMTV integration site family of signaling proteins. Frizzled-4 is the only representative of frizzled family members that binds strongly an additional ligand Norrin that is functionally similar but structurally different from Wingless type proteins. FZD4 signaling induced by Norrin regulates vascular development of vertebrate retina and controls important blood vessels in the ear. Most frizzled receptors are coupled to the beta-catenin canonical signaling pathway. This protein may play a role as a positive regulator of the Wingless type MMTV integration site signaling pathway. A transcript variant retaining intronic sequence and encoding a shorter isoform has been described, however, its expression is not supported by other experimental evidence.
See also
Frizzled
References
Further reading
External links
"Frizzled Receptors: FZD4".
The public source identifies “Frizzled-4” as protein-coding gene in the species Homo sapiens. This brief keeps that definition visible, then builds a research path around Frizzled-4, protein-coding and gene.
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