CD19 (NM_001770) Human Recombinant Protein

CAT#: TP302922

Recombinant protein of human CD19 molecule (CD19), 20 µg

Size: 20 ug 100 ug 1 mg

  View other "CD19" proteins (11)

USD 867.00

In Stock*

    • 20 ug

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Product Data
Species Human
Expression Host HEK293T
Expression cDNA Clone or AA Sequence
>RC202922 protein sequence
Red=Cloning site Green=Tags(s)


Tag C-Myc/DDK
Predicted MW 60.9 kDa
Concentration >0.1 µg/µL as determined by microplate BCA method
Purity > 80% as determined by SDS-PAGE and Coomassie blue staining
Buffer 25 mM Tris-HCl, 100 mM glycine, pH 7.3, 10% glycerol
Preparation Recombinant protein was captured through anti-DDK affinity column followed by conventional chromatography steps.
Note For testing in cell culture applications, please filter before use. Note that you may experience some loss of protein during the filtration process.
Storage Store at -80°C.
Stability Stable for 12 months from the date of receipt of the product under proper storage and handling conditions. Avoid repeated freeze-thaw cycles.
Reference Data
RefSeq NP_001761
Locus ID 930
UniProt ID P15391
Cytogenetics 16p11.2
Refseq Size 1965
Refseq ORF 1668
Synonyms B4; CVID3
Summary 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]
Protein Families Druggable Genome, Transmembrane
Protein Pathways B cell receptor signaling pathway, Hematopoietic cell lineage, Primary immunodeficiency


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*Delivery time may vary from web posted schedule. Occasional delays may occur due to unforeseen complexities in the preparation of your product. International customers may expect an additional 1-2 weeks in shipping.