Recombinant Human Low-density lipoprotein receptor-related protein 4 (LRP4), partial

Code CSB-EP013099HU
Size $224
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  • (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.
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Product Details

Greater than 90% as determined by SDS-PAGE.
Target Names
Uniprot No.
Research Area
Alternative Names
KIAA0816; LDLR dan; Low density lipoprotein receptor related protein 4; Low-density lipoprotein receptor-related protein 4; LRP-4; LRP10; Lrp4; LRP4_HUMAN; MEGF7; Multiple epidermal growth factor like domains 7 ; Multiple epidermal growth factor-like domains 7
Homo sapiens (Human)
Expression Region
Target Protein Sequence
Note: The complete sequence including tag sequence, target protein sequence and linker sequence could be provided upon request.
Mol. Weight
Protein Length
Cytoplasmic Domain
Tag Info
N-terminal 6xHis-tagged
Liquid or Lyophilized powder
Note: We will preferentially ship the format that we have in stock, however, if you have any special requirement for the format, please remark your requirement when placing the order, we will prepare according to your demand.
If the delivery form is liquid, the default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol.
Note: If you have any special requirement for the glycerol content, please remark when you place the order.
If the delivery form is lyophilized powder, the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0.
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. Our default final concentration of glycerol is 50%. Customers could use it as reference.
Troubleshooting and FAQs
Storage Condition
Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
Shelf Life
The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
Lead Time
Delivery time may differ from different purchasing way or location, please kindly consult your local distributors for specific delivery time.
Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Datasheet & COA
Please contact us to get it.

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Target Background

Mediates SOST-dependent inhibition of bone formation. Functions as a specific facilitator of SOST-mediated inhibition of Wnt signaling. Plays a key role in the formation and the maintenance of the neuromuscular junction (NMJ), the synapse between motor neuron and skeletal muscle. Directly binds AGRIN and recruits it to the MUSK signaling complex. Mediates the AGRIN-induced phosphorylation of MUSK, the kinase of the complex. The activation of MUSK in myotubes induces the formation of NMJ by regulating different processes including the transcription of specific genes and the clustering of AChR in the postsynaptic membrane. Alternatively, 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, has been proposed to function as a cell surface endocytic receptor binding and internalizing extracellular ligands for degradation by lysosomes. May play an essential role in the process of digit differentiation.
Gene References into Functions
  1. In vitro experiments demonstrated that LRP4 downregulation significantly inhibited the colony formation, proliferation, migration, and invasion of the three papillary thyroid cancer cell lines. PMID: 29885843
  2. LRP4 c.2552C>G (p.(T851R) variant was identified in the family with Chiari malformation type 1. PMID: 28513615
  3. A novel splice variant in LRP4 (c.316+1G > A) segregated with Cenani-Lenz syndactyly phenotype in a five generations family. PMID: 28559208
  4. LRP4 mutations alter Wnt/beta catenin signaling and cause limb and kidney malformations in Cenani-Lenz syndrome. PMID: 20381006
  5. the first evidence suggesting that LRP4 is responsible for the retention of sclerostin in the bone environment in humans. PMID: 26751728
  6. study presents 2 sibling fetuses with a prenatal lethal presentation of mesomelic limb reductions, oligosyndactyly, genitourinary malformation and compound heterozygosity for 2 novel truncating mutations in LRP4 PMID: 24924585
  7. MuSK myasthenia gravis IgG4 disrupts the interaction of LRP4 with MuSK but both IgG4 and IgG1-3 can disperse preformed agrin-independent AChR clusters PMID: 24244707
  8. LRP4 is essential for maintaining the structural and functional activity of the neuromuscular junction. PMID: 25319686
  9. LRP4 is a new CMS disease gene and the 3rd beta propeller domain of LRP4 mediates two signaling pathways in a position-specific manner. PMID: 24234652
  10. [review] Autoantibodies against LRP4 differentially alter neuromuscular transmission, demonstrating how myasthenia gravis can be classified according to the profile of the antibodies; management of myasthenia gravis patients can be adapted accordingly. PMID: 24530233
  11. pathogenic IgG4 antibodies to MuSK bind to a structural epitope in the first Ig-like domain of MuSK, prevent binding between MuSK and Lrp4, and inhibit Agrin-stimulated MuSK phosphorylation. PMID: 24297891
  12. Cenani-Lenz syndrome in a large Pakistani pedigree is associated with a novel LRP4 missense mutation. PMID: 23664847
  13. Data conclude that common variation in the LRP4 gene determines hip and whole body BMD PMID: 23321396
  14. The roles of LRP4 in muscle fibers and motoneurons in neuromuscular junction formation have been dissected by cell-specific mutation. PMID: 22794264
  15. Data suggest that LRP4 and interaction between LRP4 and genes in the Wnt and BMP signaling pathways modulate bone phenotypes including peak bone mass and fracture, the clinical endpoint of osteoporosis. PMID: 21645651
  16. Lrp4 is a cis-acting ligand for MuSK PMID: 21969364
  17. the interaction of sclerostin with LRP4 is required to mediate the inhibitory function of sclerostin on bone formation, thus identifying a novel role for LRP4 in bone. PMID: 21471202
  18. The present studies suggest that LRP10 may play a significant role in the brain physiology other than lipoprotein metabolism. PMID: 20005200

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Involvement in disease
Cenani-Lenz syndactyly syndrome (CLSS); Sclerosteosis 2 (SOST2); Myasthenic syndrome, congenital, 17 (CMS17)
Subcellular Location
Cell membrane; Single-pass type I membrane protein.
Protein Families
LDLR family
Tissue Specificity
Expressed in bone; present in osteoblasts and osteocytes. No expression is observed in osteoclast. Expressed in several regions of the brain.
Database Links

HGNC: 6696

OMIM: 212780

KEGG: hsa:4038

STRING: 9606.ENSP00000367888

UniGene: Hs.4930

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