Recombinant Human CD19 Protein (Pro20-Lys291), C-DDK/His-tagged
Product Description
Cat
IMP-6988
Official Symbol
Cd19
Product Overview
Purified recombinant protein of human CD19 molecule (CD19), transcript variant 2, with C-terminal DDK/His tag, expressed in human cells.
Description
This gene encodes a member of the immunoglobulin gene superfamily. Expression of this cell surface protein is restricted to B cell lymphocytes. This protein is a reliable marker for pre-B cells but its expression diminishes during terminal B cell differentiation in antibody secreting plasma cells. The protein has two N-terminal extracellular Ig-like domains separated by a non-Ig-like domain, a hydrophobic transmembrane domain, and a large C-terminal cytoplasmic domain. This protein forms a complex with several membrane proteins including complement receptor type 2 (CD21) and tetraspanin (CD81) and this complex reduces the threshold for antigen-initiated B cell activation. Activation of this B-cell antigen receptor complex activates the phosphatidylinositol 3-kinase signalling pathway and the subsequent release of intracellular stores of calcium ions. This protein is a target of chimeric antigen receptor (CAR) T-cells used in the treatment of lymphoblastic leukemia. Mutations in this gene are associated with the disease common variable immunodeficiency 3 (CVID3) which results in a failure of B-cell differentiation and impaired secretion of immunoglobulins. CVID3 is characterized by hypogammaglobulinemia, an inability to mount an antibody response to antigen, and recurrent bacterial infections. Alternative splicing results in multiple transcript variants encoding distinct isoforms. [provided by RefSeq, Jul 2020]
Expression System
HEK293
Species
Human
Tag
C-DDK/His
Form
PBS, pH7.4, 10% glycerol
Molecular Mass
32 kDa
Protein length
Pro20-Lys291
Purity
> 80% as determined by SDS-PAGE and Coomassie blue staining.
Storage
Store at -80 centigrade.
Stability: Stable for 12 months from the date of receipt of the product under proper storage and handling conditions. Avoid repeated freeze-thaw cycles.
Concentration
> 50 μg/mL as determined by microplate BCA method.
SDS-PAGE
SDS-PAGE

Data Sheet MSDS
For Research Use Only. Not intended for any clinical use. No products from Creative BioMart may be resold, modified for resale or used to manufacture commercial products without prior written approval from Creative BioMart.

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