FUNCTION: Acts as a coreceptor with members of the frizzled family of seven-transmembrane spanning receptors to transduce signal by Wnt proteins (PubMed:11336703, PubMed:11448771, PubMed:15778503, PubMed:11719191, PubMed:15908424, PubMed:16252235). Activates the canonical Wnt signaling pathway that ...
FUNCTION: Acts as a coreceptor with members of the frizzled family of seven-transmembrane spanning receptors to transduce signal by Wnt proteins (PubMed:11336703, PubMed:11448771, PubMed:15778503, PubMed:11719191, PubMed:15908424, PubMed:16252235). Activates the canonical Wnt signaling pathway that controls cell fate determination and self-renewal during embryonic development and adult tissue regeneration (PubMed:11336703, PubMed:11719191). In particular, may play an important role in the development of the posterior patterning of the epiblast during gastrulation (By similarity). During bone development, regulates osteoblast proliferation and differentiation thus determining bone mass (PubMed:11719191). Mechanistically, the formation of the signaling complex between Wnt ligand, frizzled receptor and LRP5 coreceptor promotes the recruitment of AXIN1 to LRP5, stabilizing beta-catenin/CTNNB1 and activating TCF/LEF-mediated transcriptional programs (PubMed:11336703, PubMed:25920554, PubMed:24706814, PubMed:14731402). Acts as a coreceptor for non-Wnt proteins, such as norrin/NDP. Binding of norrin/NDP to frizzled 4/FZD4-LRP5 receptor complex triggers beta-catenin/CTNNB1-dependent signaling known to be required for retinal vascular development (PubMed:27228167, PubMed:16252235). Plays a role in controlling postnatal vascular regression in retina via macrophage-induced endothelial cell apoptosis (By similarity). {ECO:0000250|UniProtKB:Q91VN0, ECO:0000269|PubMed:11336703, ECO:0000269|PubMed:11448771, ECO:0000269|PubMed:11719191, ECO:0000269|PubMed:14731402, ECO:0000269|PubMed:15778503, ECO:0000269|PubMed:15908424, ECO:0000269|PubMed:16252235, ECO:0000269|PubMed:24706814, ECO:0000269|PubMed:25920554, ECO:0000269|PubMed:27228167}.
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GO - Biological processes (BP):
adipose tissue development [GO:0060612]; anatomical structure regression [GO:0060033]; anterior/posterior pattern specification [GO:0009952]; apoptotic process involved in blood vessel morphogenesis [GO:1902262]; bone marrow development [GO:0048539]; bone morphogenesis [GO:0060349]; bone remodeling ...
adipose tissue development [GO:0060612]; anatomical structure regression [GO:0060033]; anterior/posterior pattern specification [GO:0009952]; apoptotic process involved in blood vessel morphogenesis [GO:1902262]; bone marrow development [GO:0048539]; bone morphogenesis [GO:0060349]; bone remodeling [GO:0046849]; branching involved in mammary gland duct morphogenesis [GO:0060444]; canonical Wnt signaling pathway [GO:0060070]; cell-cell signaling involved in mammary gland development [GO:0060764]; cell migration involved in gastrulation [GO:0042074]; cholesterol homeostasis [GO:0042632]; cholesterol metabolic process [GO:0008203]; embryonic digit morphogenesis [GO:0042733]; endocytosis [GO:0006897]; extracellular matrix-cell signaling [GO:0035426]; gastrulation with mouth forming second [GO:0001702]; glucose catabolic process [GO:0006007]; negative regulation of osteoblast differentiation [GO:0045668]; negative regulation of protein serine/threonine kinase activity [GO:0071901]; Norrin signaling pathway [GO:0110135]; osteoblast development [GO:0002076]; positive regulation of cell population proliferation [GO:0008284]; positive regulation of DNA-binding transcription factor activity [GO:0051091]; positive regulation of fat cell differentiation [GO:0045600]; positive regulation of mesenchymal cell proliferation [GO:0002053]; positive regulation of mitotic nuclear division [GO:0045840]; positive regulation of osteoblast differentiation [GO:0045669]; positive regulation of osteoblast proliferation [GO:0033690]; positive regulation of transcription, DNA-templated [GO:0045893]; positive regulation of transcription by RNA polymerase II [GO:0045944]; regulation of apoptotic process [GO:0042981]; regulation of blood pressure [GO:0008217]; regulation of insulin secretion involved in cellular response to glucose stimulus [GO:0061178]; retinal blood vessel morphogenesis [GO:0061304]; retina morphogenesis in camera-type eye [GO:0060042]; somatic stem cell population maintenance [GO:0035019]
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GO - Molecular function (MF):
coreceptor activity [GO:0015026]; coreceptor activity involved in canonical Wnt signaling pathway [GO:1904928]; coreceptor activity involved in Wnt signaling pathway [GO:0071936]; Wnt-activated receptor activity [GO:0042813]; Wnt-protein binding [GO:0017147]...
coreceptor activity [GO:0015026]; coreceptor activity involved in canonical Wnt signaling pathway [GO:1904928]; coreceptor activity involved in Wnt signaling pathway [GO:0071936]; Wnt-activated receptor activity [GO:0042813]; Wnt-protein binding [GO:0017147]
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GO - Cellular component (CC):
endoplasmic reticulum [GO:0005783]; integral component of membrane [GO:0016021]; plasma membrane [GO:0005886]; receptor complex [GO:0043235]; Wnt-Frizzled-LRP5/6 complex [GO:1990851]; Wnt signalosome [GO:1990909]...
endoplasmic reticulum [GO:0005783]; integral component of membrane [GO:0016021]; plasma membrane [GO:0005886]; receptor complex [GO:0043235]; Wnt-Frizzled-LRP5/6 complex [GO:1990851]; Wnt signalosome [GO:1990909]
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