AtaGenix

Recombinant Human MS4A1 protein ,N- His Tag

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ATMP00207HU
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Summaryicon
English name
Recombinant Human MS4A1 protein ,N- His Tag
Purity
>90% as determined by SDS-PAGE
Endotoxin level
< 1.0 EU per μg of the protein as determined by the LAL method.
Construction
A DNA sequence encoding the human MS4A1(Glu213-Pro297) was fused with the N-terminal His Tag
Accession #
P11836
Host
Mammalian cells
Species
Homo sapiens (Human)
Predicted Molecular Mass
9.35kDa
Formulation
Supplied as solution form in PBS pH 7.5 or lyophilized from PBS pH 7.5.
Shipping
In general, proteins are provided as lyophilized powder/frozen liquid. They are shipped out with dry ice/blue ice unless customers require otherwise.
Stability &Storage
Use a manual defrost freezer and avoid repeated freeze thaw cycles.
Store at 2 to 8 °C for one week .
Store at -20 to -80 °C for twelve months from the date of receipt.
Reconstitution
Reconstitute in sterile water for a stock solution.A copy of datasheet will be provided with the products, please refer to it for details.
SDS-PAGE imageicon
    Backgroundicon
    Background
    CD20 is expressed on all stages of B cell development except the first and last; it is present from late pro-B cells through memory cells, but not on either early pro-B cells or plasma blasts and plasma cells. It is found on B-cell lymphomas, hairy cell leukemia, B-cell chronic lymphocytic leukemia, and melanoma cancer stem cells. The protein has no known natural ligand and its function is to enable optimal B-cell immune response, specifically against T-independent antigens. It is suspected that it acts as a calcium channel in the cell membrane. CD20 / MS4A1 is the target of the monoclonal antibodies (mAb) rituximab, Ibritumomab tiuxetan, and tositumomab, which are all active agents in the treatment of all B cell lymphomas and leukemias. Defects in CD20 / MS4A1 are the cause of immunodeficiency common variable type 5 (CVID5); also called antibody deficiency due to CD20 defect. CVID5 is a primary immunodeficiency characterized by antibody deficiency, hypogammaglobulinemia, recurrent bacterial infections and an inability to mount an antibody response to antigen.
    Alternative Names
    MS4A1,CD20
    References
    Jang, Juran, Cunningham, Gupta, Son, Yang, Ali, Enninga, Sung, Lazaridis (2020) Single-cell mass cytometry on peripheral blood identifies immune cell subsets associated with primary biliary cholangitis Scientific reports 10(1) 12584
    The relationship between primary biliary cholangitis (PBC), a chronic cholestatic autoimmune liver disease, and the peripheral immune system remains to be fully understood. Herein, we performed the first mass cytometry (CyTOF)-based, immunophenotyping analysis of the peripheral immune system in PBC at single-cell resolution. CyTOF was performed on peripheral blood mononuclear cells (PBMCs) from PBC patients (n = 33) and age-/sex-matched healthy controls (n = 33) to obtain immune cell abundance and marker expression profiles. Hierarchical clustering methods were applied to identify immune cell types and subsets significantly associated with PBC. Subsets of gamma-delta T cells (CD3+TCRgd+), CD8+ T cells (CD3+CD8+CD161+PD1+), and memory B cells (CD3-CD19+CD20+CD24+CD27+) were found to have lower abundance in PBC than in control. In contrast, higher abundance of subsets of monocytes and naïve B cells were observed in PBC compared to control. Furthermore, several naïve B cell (CD3-CD19+CD20+CD24-CD27-) subsets were significantly higher in PBC patients with cirrhosis (indicative of late-stage disease) than in those without cirrhosis. Alternatively, subsets of memory B cells were lower in abundance in cirrhotic relative to non-cirrhotic PBC patients. Future immunophenotyping investigations could lead to better understanding of PBC pathogenesis and progression, and also to the discovery of novel biomarkers and treatment strategies.

    Guarantee and Disclaimer:

    After receiving the product, if finds that the product is mismatched, damaged or missing components, please keep the original package and submit the objection to the company by mail within seven working days. Failure to file an objection within the time limit is considered qualified.

    When the buyer keeps the product, it should be kept in accordance with the storage conditions shown in the product label and the manual. If the product quality is caused by improper storage, it will not be guaranteed.

    When the buyer tests the product, they should be submitted by the beginning of use when found the quality issue, rather than when the product was used or used up, in order to prepare our products for recycling and confirm the quality of the products. If it is the quality problem, our company is responsible for exchange or return. In the event of a claim, our company will compensate the discretion within the scope of the product price limit and will not accept any part of the value of the product itself. Since the date of receipt, the product has not been reflected for more than three months and should not be returned.

    The products provided by our company are for research use only and should not be used for clinical diagnosis or treatment. If a unit or individual changes the use of our products without authorization, we will not bear any responsibility.