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Recombinant Human V-set and immunoglobulin domain-containing protein 4 (VSIG4), partial (Active)

In Stock
  • 货号:
  • 规格:
  • 图片:
    • (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.
    • Activity
      Measured by its binding ability in a functional ELISA. Immobilized Human VSIG4 at 2 μg/ml can bind Anti-VSIG4 recombinant antibody (CSB-RA896869MA1HU), the EC50 is 51.14-68.73 ng/mL.
  • 其他:


  • 纯度:
    Greater than 95% as determined by SDS-PAGE.
  • 内毒素:
    Less than 1.0 EU/ug as determined by LAL method.
  • 生物活性:
    Measured by its binding ability in a functional ELISA. Immobilized Human VSIG4 at 2 μg/ mL can bind Anti-VSIG4 recombinant antibody (CSB-RA896869MA1HU), the EC50 is 51.14-68.73 ng/mL.
  • 基因名:
  • Uniprot No.:
  • 别名:
    (Protein Z39Ig)
  • 分子结构:
  • 种属:
    Homo sapiens (Human)
  • 蛋白长度:
  • 来源:
    Mammalian cell
  • 分子量:
    30.6 kDa
  • 表达区域:
  • 氨基酸序列
  • 蛋白标签:
    C-terminal 10xHis-tagged
  • 产品提供形式:
    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.
  • 缓冲液:
    Lyophilized from a 0.2 μm filtered 20 mM Tris-HCl, 0.5 M NaCl, 6% Trehalose, pH 8.0
  • 复溶:
    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℃/-80℃. Our default final concentration of glycerol is 50%. Customers could use it as reference.
  • 储存条件:
    Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
  • 保质期:
    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.
  • 货期:
    Basically, we can dispatch the products out in 3-7 working days after receiving your orders. Delivery time may differ from different purchasing way or location, please kindly consult your local distributors for specific delivery time.
  • 注意事项:
    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.


5.0分 - 1 个评价


产品评价: 蛋白纯度高,经ELISA验证活性良好,后续用于动物免疫及ELISA实验,结果很顺利!与其他厂家相比,活性高,价格也合理,性价比高!

By 付老师


  • 功能:
    Phagocytic receptor, strong negative regulator of T-cell proliferation and IL2 production. Potent inhibitor of the alternative complement pathway convertases.
  • 基因功能参考文献:
    1. Soluble VSIG4 levels are associated with the progression and recurrence of ovarian cancer, indicating that soluble VSIG4 may be used as a potential biomarker for predicting tumor prognosis. PMID: 28498255
    2. VSIG4 signaling provides an anti-immune evasion mechanism that prevents the outgrowth of intracellular bacteria in macrophages PMID: 27440002
    3. The VSIG4 upregulation by LMP1 was regulated at the transcriptional level via the NF-kB signaling axis. PMID: 28859984
    4. VSIG4 expression is significantly upregulated in human masticatory mucosa during wound healing PMID: 28005267
    5. we concluded that let-7g-5p inhibits epithelial-mesenchymal transition (EMT) consistent with reduction of glioma stem cell (GSC) phenotypes by targeting VSIG4 in glioblastoma. PMID: 27634309
    6. Data indicate that rotein kinase calpha (PKCalpha) plays a role in downregulating complement receptor Ig (CRIg coded by V-set and Ig domain-containing protein 4 VSIG4) expression. PMID: 25687755
    7. complement receptor of the immunoglobulin superfamily-L-factor H protects glomerular mesangial cells from complement-mediated injury and proliferative lesions PMID: 25114177
    8. we identified VSIG4 as a potential diagnostic marker of severe preeclampsia. The determination of this gene may improve the prognostic assessment of severe preeclampsia. PMID: 24349325
    9. Data indicate that massive V-set and Ig domain-containing 4 VSIG4(+) cell infiltration throughout the non-small-cell lung cancer samples. PMID: 24862966
    10. we showed that a complement receptor of the Ig superfamily (CRIg, also known as Z39Ig), a receptor for complement fragments (C3b and iC3b), was expressed on a subset of intestinal macrophages in murine and human large intestine PMID: 21768202
    11. These results suggest that T cells can opposite T cell hyporesponsiveness through dampening Z39Ig inhibitory signals from macrophages and thus maintain their anti-viral function in chronic hepatitis B. PMID: 20399148
    12. hVSIG4 recombinant adenovirus-transfected DCs suppress T cell proliferation, cytokine production and activation marker expression with PMID: 19914289
    13. Results report the identification and characterization of a Complement Receptor of the Immunoglobulin superfamily, CRIg, that binds complement fragments C3b and iC3b. PMID: 16530040
    14. These data indicate that the macrophage Z39Ig is involved in the pathogenesis of inflammatory diseases through chemokine induction, which will promote the migration of inflammatory cells into the lesion area, and MMP-9 induction. PMID: 16882875
    15. The specific expression of VSIG4 on resting macrophages suggests that VSIG4 may be important for the maintenance of T cell unresponsiveness in healthy tissues. PMID: 17016562
    16. CRIg is not only a phagocytic receptor, but also a potent inhibitor of the alternative pathway convertases PMID: 17051150



  • 亚细胞定位:
    Membrane; Single-pass type I membrane protein.
  • 组织特异性:
    Abundantly expressed in several fetal tissues. In adult tissues, highest expression in lung and placenta. Expressed in resting macrophages.
  • 数据库链接:

    HGNC: 17032

    OMIM: 300353

    KEGG: hsa:11326

    STRING: 9606.ENSP00000363869

    UniGene: Hs.8904