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HighlightsIntroduction of LRP4
LRP4, low-density lipoprotein receptor-related protein 4, is a protein that in humans is encoded by the LRP4 gene. It’s also known as multiple epidermal growth factor-like domains 7 (MEGF7). LRP-4 is a member of the lipoprotein receptor-related protein family and might be a regulator of Wnt signaling pathway. In the clinic, it has been found that the mutations in this gene are associated with Cenani Lenz syndactylism.
| Basic Information of LRP4 | |
| Protein Name | Low-density lipoprotein receptor-related protein 4 |
| Gene Name | LRP4 |
| Aliases | Multiple epidermal growth factor-like domains 7 (MEGF7), KIAA0816, LRP10 |
| Organism | Homo sapiens (Human) |
| UniProt ID | O75096 |
| Transmembrane Times | 1 |
| Length (aa) | 1905 |
| Sequence | MRRQWGALLLGALLCAHGLASSPECACGRSHFTCAVSALGECTCIPAQWQCDGDNDCGDHSDEDGCILPTCSPLDFHCDNGKCIRRSWVCDGDNDCEDDSDEQDCPPRECEEDEFPCQNGYCIRSLWHCDGDNDCGDNSDEQCDMRKCSDKEFRCSDGSCIAEHWYCDGDTDCKDGSDEENCPSAVPAPPCNLEEFQCAYGRCILDIYHCDGDDDCGDWSDESDCSSHQPCRSGEFMCDSGLCINAGWRCDGDADCDDQSDERNCTTSMCTAEQFRCHSGRCVRLSWRCDGEDDCADNSDEENCENTGSPQCALDQFLCWNGRCIGQRKLCNGVNDCGDNSDESPQQNCRPRTGEENCNVNNGGCAQKCQMVRGAVQCTCHTGYRLTEDGHTCQDVNECAEEGYCSQGCTNSEGAFQCWCETGYELRPDRRSCKALGPEPVLLFANRIDIRQVLPHRSEYTLLLNNLENAIALDFHHRRELVFWSDVTLDRILRANLNGSNVEEVVSTGLESPGGLAVDWVHDKLYWTDSGTSRIEVANLDGAHRKVLLWQNLEKPRAIALHPMEGTIYWTDWGNTPRIEASSMDGSGRRIIADTHLFWPNGLTIDYAGRRMYWVDAKHHVIERANLDGSHRKAVISQGLPHPFAITVFEDSLYWTDWHTKSINSANKFTGKNQEIIRNKLHFPMDIHTLHPQRQPAGKNRCGDNNGGCTHLCLPSGQNYTCACPTGFRKISSHACAQSLDKFLLFARRMDIRRISFDTEDLSDDVIPLADVRSAVALDWDSRDDHVYWTDVSTDTISRAKWDGTGQEVVVDTSLESPAGLAIDWVTNKLYWTDAGTDRIEVANTDGSMRTVLIWENLDRPRDIVVEPMGGYMYWTDWGASPKIERAGMDASGRQVIISSNLTWPNGLAIDYGSQRLYWADAGMKTIEFAGLDGSKRKVLIGSQLPHPFGLTLYGERIYWTDWQTKSIQSADRLTGLDRETLQENLENLMDIHVFHRRRPPVSTPCAMENGGCSHLCLRSPNPSGFSCTCPTGINLLSDGKTCSPGMNSFLIFARRIDIRMVSLDIPYFADVVVPINITMKNTIAIGVDPQEGKVYWSDSTLHRISRANLDGSQHEDIITTGLQTTDGLAVDAIGRKVYWTDTGTNRIEVGNLDGSMRKVLVWQNLDSPRAIVLYHEMGFMYWTDWGENAKLERSGMDGSDRAVLINNNLGWPNGLTVDKASSQLLWADAHTERIEAADLNGANRHTLVSPVQHPYGLTLLDSYIYWTDWQTRSIHRADKGTGSNVILVRSNLPGLMDMQAVDRAQPLGFNKCGSRNGGCSHLCLPRPSGFSCACPTGIQLKGDGKTCDPSPETYLLFSSRGSIRRISLDTSDHTDVHVPVPELNNVISLDYDSVDGKVYYTDVFLDVIRRADLNGSNMETVIGRGLKTTDGLAVDWVARNLYWTDTGRNTIEASRLDGSCRKVLINNSLDEPRAIAVFPRKGYLFWTDWGHIAKIERANLDGSERKVLINTDLGWPNGLTLDYDTRRIYWVDAHLDRIESADLNGKLRQVLVSHVSHPFALTQQDRWIYWTDWQTKSIQRVDKYSGRNKETVLANVEGLMDIIVVSPQRQTGTNACGVNNGGCTHLCFARASDFVCACPDEPDSRPCSLVPGLVPPAPRATGMSEKSPVLPNTPPTTLYSSTTRTRTSLEEVEGRCSERDARLGLCARSNDAVPAAPGEGLHISYAIGGLLSILLILVVIAALMLYRHKKSKFTDPGMGNLTYSNPSYRTSTQEVKIEAIPKPAMYNQLCYKKEGGPDHNYTKEKIKIVEGICLLSGDDAEWDDLKQLRSSRGGLLRDHVCMKTDTVSIQASSGSLDDTETEQLLQEEQSECSSVHTAATPERRGSLPDTGWKHERKLSSESQV |
Function of LRP4 Membrane Protein
LRP4 (Low-density lipoprotein receptor-related protein 4) is also known as MEGF7, KIAA0816 and LRP10. It can mediate SOST-dependent inhibition of bone formation and function as a specific facilitator of SOST-mediated inhibition of Wnt signaling. Also, it plays a key role in the formation and the maintenance of the neuromuscular junction (NMJ), the synapse between the motor neuron and skeletal muscle. It directly binds to AGRIN and is recruited to the MUSK signaling complex. Except for these, it can mediate the AGRIN-induced phosphorylation of MUSK. In addition, it may be involved in the negative regulation of the canonical Wnt signaling pathway, being able to antagonize the LRP6-mediated activation of this pathway. More generally, it has been proposed to function as a cell surface endocytic receptor binding and internalizing extracellular ligands for degradation by lysosomes. Moreover, LRP4 may play an essential role in the process of digit differentiation. LRP4 controls osteoclastogenesis, and it mediates the pathophysiological mechanism of high-bone-mass disorders.
Fig.1 The LRP family (Andersen, 2006)
Application of LRP4 Membrane Protein in Literature
This article shows that astrocytic LRP4 plays a critical role in ischemic brain injury response.
This article demonstrates that neuronal LRP4 plays an essential and novel role in dendritic development and synaptogenesis in the CNS.
This article indicates that Lrp4 can modulate Wnt/β-catenin signaling through interaction with Wnt ligands and antagonists in a context-dependent manner.
This article shows that mutations in LRP4 can cause human sclerosteosis phenotype through R1170Q, and the model can be used for further investigation of the mechanism by which LRP4 regulates bone formation.
This article shows a novel mechanism by which osteoblastic LRP4 controls osteoclastogenesis. It also identifies a new pathophysiological mechanism of high-bone-mass disorders.
LRP4 Preparation Options
We provide custom membrane protein preparation services for worldwide customers. Leveraging by our advanced Magic™ membrane protein production platform, we are able to present target membrane protein in multiple active formats. Our professional scientists are happy to help you find an ideal method and make your project a success. Aided by our versatile Magic™ anti-membrane protein antibody discovery platform, we also provide customized anti-LRP4 antibody development services.
Creative Biolabs provides high-quality membrane protein preparation service to facilitate the development of worldwide customer’s research. During the past years, we have successfully established a powerful Magic™ membrane protein platform which enables us to provide a series of membrane protein preparation services. For more detailed information, please feel free to contact us.
Reference
All listed services and products are For Research Use Only. Do Not use in any diagnostic or therapeutic applications.
