- Product name
Human CD20 protein, His tag (Animal-Free)
Amino acid sequence derived from human CD20 (NP_068769.2) (Glu213-Pro297) was expressed with a 6 His tag at the C-terminus.
- Protein length
The recombinant human CD20 protein consists of 91 amino acids and predicts a molecular mass of 10.6 KD. It migrates as an approximately 23 KD band in SDS-PAGE under reducing conditions due to glycosylation.
- Preparation method
>90% as determined by SDS-PAGE.
Lyophilized from sterile PBS, pH 7.4.
- Features & Benefits
Endotoxin: < 1.0 EU per µg of the protein as determined by the LAL method.
- Molecular weight
- Usage notes
Always centrifuge tubes before opening. It is recommended to reconstitute the lyophilized Human CD20 protein alpha protein using the buffer we provided not less than 100 µg/mL, which can then be further diluted to other aqueous solutions.
- Storage instructions
Lyophilized Human CD20 protein product should be stored desiccated below -20°C. Upon reconstitution, the protein should be stored at 4°C between 2-7 days and for future use below -20°C. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA). Please prevent freeze-thaw cycles.
The product is shipped at ambient temperature.
The product listed herein is for research use only and is not intended for use in human or clinical diagnosis. Suggested applications of our products are not recommendations to use our products in violation of any patent or as a license. We cannot be responsible for patent infringements or other violations that may occur with the use of this product.
B-lymphocyte antigen CD20 is also known as B-lymphocyte surface antigen B1, Leukocyte surface antigen Leu-16, Membrane-spanning 4-domains subfamily A member 1 and MS4A1, is an activated-glycosylated phosphoprotein expressed on the surface of all B-cells beginning at the pro-B phase (CD45R+, CD117+) and progressively increasing in concentration until maturity. 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. CD20/MS4A1may be involved in the regulation of B-cell activation and proliferation. Defects in CD20/MS4A1 are the cause of immunodeficiency common variable type 5 (CVID5). CVID5 is a primary immunodeficiency characterized by antibody deficiency, hypogammaglobulinemia, recurrent bacterial infections and an inability to mount an antibody response to antigen. The defect results from a failure of B-cell differentiation and impaired secretion of immunoglobulins; the numbers of circulating B-cells is usually in the normal range, but can be low.
- Gene ID
- Alternative names
CD80; Activation B7-1 antigen; B7; BB1; CD28LG1; CD28LGB7-1 antigen; T-lymphocyte activation antigen CD80
Most popular with customers
Human CD20 protein, His tag (Animal-Free)
Click to download booklet for more details
Notice:Protocol may vary from different lot which is subject to the manual along with the shipment. Please contact email@example.com for your enquiry.
Here we provide some standard research protocols for bioscience including molecular biology, cell biology, immunology, plant biology, genetics, etc. To our knowledge, customized protocols are not required for most products. So please try the standard protocols listed below and let us know how you get on.
Preparation methods for Biochemical
Biochemical reagents have been widely used in life science fundamental research as buffer, probes, substrates, intermediates and standards, etc. You may optimize or choose proper protocols for your specific assay. However, some of tips and suggestions listed below may be for your reference.
Antibody application protocols
Antibodies are useful not only to detect specific biomolecules but also to measure changes in their level and specificity of modification by processes such as phosphorylation, methylation, or glycosylation. Here show some protocols and troubleshooting tips on how to get the best from our antibodies.
- ♦ Antibody Western Blotting (WB) protocol
- ♦ Antibody Immunohistochemistry (IHC) protocol
- ♦ Antibody Immunofluorescence (IF) protocol
- ♦ Antibody Immunoprecipitation (IP) protocol
- ♦ Antibody Enzyme-Linked ImmunoSorbent Assay (ELISA) protocol
Protein&peptide usage suggestions
Synthetic peptides, native or recombinant proteins can be used for medical, academic and research purposes, such as gene therapy, drug screening, antibody production, cell function analysis. Here, we provide some of tips and suggestions for your reference.
- ♦ Handling and storage suggestion for peptides and protein
- ♦ Cytokines and growth factors for cell culture application
Commonly used assay kits guidelines
Assay kits that are simple and convenient to use, which are superior in performance and require little to no time for assay optimization. Further details of specific products which are needed for individual protocols are given in the protocols themselves in booklet.
We hope this will be helpful for your research work. Please let us know through firstname.lastname@example.org if you need more information or support.