frizzled class receptor 4
Última atualização 5 Feb 2024
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The FZD4 gene provides instructions for making a protein called frizzled-4. This protein is embedded in the outer membrane of many types of cells, where it is involved in transmitting chemical signals from outside the cell to the cell's nucleus. Specifically, frizzled-4 participates in the Wnt signaling pathway, a series of steps that affect the way cells and tissues develop. Wnt signaling is important for cell division (proliferation), attachment of cells to one another (adhesion), cell movement (migration), and many other cellular activities.
Normal function
The FZD4 gene provides instructions for making a protein called frizzled-4. This protein is embedded in the outer membrane of many types of cells, where it is involved in transmitting chemical signals from outside the cell to the cell's nucleus. Specifically, frizzled-4 participates in the Wnt signaling pathway, a series of steps that affect the way cells and tissues develop. Wnt signaling is important for cell division (proliferation), attachment of cells to one another (adhesion), cell movement (migration), and many other cellular activities.
Studies suggest that, at the cell surface, the frizzled-4 protein interacts with a protein called norrin (produced from the NDP gene). The two proteins fit together like a key in a lock. Researchers suspect that when norrin attaches (binds) to frizzled-4, it initiates a multi-step process that regulates the activity of certain genes. During early development, signaling by norrin and frizzled-4 plays a critical role in the specialization of cells in the retina, which is the light-sensitive tissue that lines the back of the eye. This signaling pathway is also involved in the formation of blood vessels in the retina and in the inner ear.
Conditions referring to this gene or chromosome
Other names
CD344
EVR1
FEVR
frizzled 4
frizzled family receptor 4
frizzled homolog 4 (Drosophila)
Fz-4
FZD4_HUMAN
FZD4S
FzE4
GPCR
MGC34390
WNT receptor frizzled-4
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Leitura adicional e referências
- frizzled class receptor 4; MedlinePlus, National Library of Medicine.
- Kondo H, Hayashi H, Oshima K, Tahira T, Hayashi K. Frizzled 4 gene (FZD4) mutations in patients with familial exudative vitreoretinopathy with variable expressivity. Br J Ophthalmol. 2003 Oct;87(10):1291-5. doi: 10.1136/bjo.87.10.1291.
- Nallathambi J, Shukla D, Rajendran A, Namperumalsamy P, Muthulakshmi R, Sundaresan P. Identification of novel FZD4 mutations in Indian patients with familial exudative vitreoretinopathy. Mol Vis. 2006 Sep 21;12:1086-92.
- Qin M, Hayashi H, Oshima K, Tahira T, Hayashi K, Kondo H. Complexity of the genotype-phenotype correlation in familial exudative vitreoretinopathy with mutations in the LRP5 and/or FZD4 genes. Hum Mutat. 2005 Aug;26(2):104-12. doi: 10.1002/humu.20191.
- Qin M, Kondo H, Tahira T, Hayashi K. Moderate reduction of Norrin signaling activity associated with the causative missense mutations identified in patients with familial exudative vitreoretinopathy. Hum Genet. 2008 Jan;122(6):615-23. doi: 10.1007/s00439-007-0438-8. Epub 2007 Oct 23.
- Toomes C, Bottomley HM, Jackson RM, Towns KV, Scott S, Mackey DA, Craig JE, Jiang L, Yang Z, Trembath R, Woodruff G, Gregory-Evans CY, Gregory-Evans K, Parker MJ, Black GC, Downey LM, Zhang K, Inglehearn CF. Mutations in LRP5 or FZD4 underlie the common familial exudative vitreoretinopathy locus on chromosome 11q. Am J Hum Genet. 2004 Apr;74(4):721-30. doi: 10.1086/383202. Epub 2004 Mar 11.
- Toomes C, Bottomley HM, Scott S, Mackey DA, Craig JE, Appukuttan B, Stout JT, Flaxel CJ, Zhang K, Black GC, Fryer A, Downey LM, Inglehearn CF. Spectrum and frequency of FZD4 mutations in familial exudative vitreoretinopathy. Invest Ophthalmol Vis Sci. 2004 Jul;45(7):2083-90. doi: 10.1167/iovs.03-1044.
- Warden SM, Andreoli CM, Mukai S. The Wnt signaling pathway in familial exudative vitreoretinopathy and Norrie disease. Semin Ophthalmol. 2007 Oct-Dec;22(4):211-7. doi: 10.1080/08820530701745124.
- Xu Q, Wang Y, Dabdoub A, Smallwood PM, Williams J, Woods C, Kelley MW, Jiang L, Tasman W, Zhang K, Nathans J. Vascular development in the retina and inner ear: control by Norrin and Frizzled-4, a high-affinity ligand-receptor pair. Cell. 2004 Mar 19;116(6):883-95. doi: 10.1016/s0092-8674(04)00216-8.
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