Biotinylated Human CD19 CAR Detection Reagent (CARD-LX073)

Datasheet

All products and services are For Research Use Only and CANNOT be used in the treatment or diagnosis of disease.

The product has been developed for the detection of transduced T cells that are engineered to express CD19-specific chimeric antigen receptors (CAR) on the cell surface, which recognize human CD19 antigen.The product is an antigen based detection reagent conjugated to biotin. It contains a recombinantly expressed fusion protein consisting of the human CD19 extracellular domains and a specifically mutated human IgG1 Fc region.The engineered CD19 CAR T cells can be detected via the recognition of the CD19 protein, and identified by flow cytometry via anti-biotin fluorochromes. The mutated human IgG1 Fc region of the CD19 CAR Detection Reagent abolishes their binding to Fcγ receptors. This allows for background-free analysis and eliminates the need for additional blocking steps, such as using a FcR blocking reagent.

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Specifications

Target
CD19

Application
FC

Storage
Store protected from light at 2-8 °C.

Application Notes
FC: 1:50

Diseases
Acute leukemia, B-Cell lymphoma

Conjugation
Biotin

Size
0.1 mL

Host Species
Human

Species Reactivity
Human

Form
Liquid

Target

Target Introduction
B-lymphocyte antigen CD19 is also known as CD19 (Cluster of Differentiation 19), is a single-pass type I membrane protein which contains two Ig-like C2-type (immunoglobulin-like) domains. CD19 is expressed on follicular dendritic cells and B cells. In fact, it is present on B cells from earliest recognizable B-lineage cells during development to B-cell blasts but is lost on maturation to plasma cells. It primarily acts as a B cell co-receptor in conjunction with CD21 and CD81. Upon activation, the cytoplasmic tail of CD19 becomes phosphorylated, which leads to binding by Src-family kinases and recruitment of PI-3 kinase. As on T cells, several surface molecules form the antigen receptor and form a complex on B lymphocytes. The (almost) B cell-specific CD19 phosphoglycoprotein is one of these molecules. The others are CD21 and CD81. These surface immunoglobulin (sIg)-associated molecules facilitate signal transduction. On living B cells, anti-immunoglobulin antibody mimicking exogenous antigen causes CD19 to bind to sIg and internalize with it. The reverse process has not been demonstrated, suggesting that formation of this receptor complex is antigen-induced. This molecular association has been confirmed by chemical studies. Mutations in CD19 are associated with severe immunodeficiency syndromes characterized by diminished antibody production. CD19 has been shown to interact with: CD81, CD82, Complement receptor 2, and VAV2.

Target Alternative Names
CD19 Molecule

Entrez Gene ID
930

UniProt ID
P15391-1

Related Resources

Overview of CD19-Targeted CAR Cell Therapies

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For research use only. Not intended for any clinical use. No products from Creative Biolabs may be resold, modified for resale or used to manufacture commercial products without prior written approval from Creative Biolabs.