Thermo Fisher Scientific CD19 Monoclonal Antibody (LT19), PE

Applications

Tested Dilution

Publications

Flow Cytometry (Flow)

20 µL x 100 µL whole blood or 10^6 cells

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Product Specifications

Species Reactivity

Human

Host/Isotype

Mouse / IgG1

Class

Monoclonal

Type

Antibody

Clone

LT19

Immunogen

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View immunogen .st0{fill:#FFFFFF;} .st1{fill:#1E8AE7;}

Conjugate

PE PE PE

View additional formats

• Unconjugated
• APC
• Biotin
• FITC
• PerCP
• Request custom conjugation

Excitation/Emission Max

565/576 nm View spectra

Form

Liquid

Purification

Size-exclusion chromatography

Storage buffer

PBS, pH 7.4, with 0.2% BSA

Contains

15mM sodium azide

Storage conditions

4° C, store in dark, DO NOT FREEZE!

Shipping conditions

Ambient (domestic); Wet ice (international)

RRID

AB_1071436

Product Specific Information

This antibody reacts with an extracellular epitope of CD19 (B4), a 95 kDa type I transmembrane glycoprotein (immunoglobulin superfamily) expressed on B lymphocytes and follicular dendritic cells; it is lost on plasma cells.

Target Information

CD19 is a member of the immunoglobulin superfamily and has two Ig like domains. The CD19 molecule is expressed on 100% of the peripheral B cells as defined by expression of kappa or lambda light chains. CD19 appears to be expressed on myeloid leukemia cells, particularly those of monocytic lineage. Leukemia phenotype studies have demonstrated that the earliest and broadest B cell restricted antigen is the CD19 antigen. The receptor for CD19 is an important functional regulator of normal and malignant B cell proliferation, and is expressed in all B cell precursor leukemias. Lymphocytes proliferate and differentiate in response to various concentrations of different antigens. The ability of the B cell to respond in a specific, yet sensitive manner to the various antigens is achieved with the use of low-affinity antigen receptors. CD19 is a cell surface molecule which assembles with the antigen receptor of B lymphocytes in order to decrease the threshold for antigen receptor-dependent stimulation. Besides being a signal-amplifying coreceptor for the B cell receptor (BCR), CD19 can also signal independently of BCR co-ligation and is a central regulatory component upon which multiple signaling pathways converge. Mutation of the CD19 gene results in hypogammaglobulinemia, whereas CD19 overexpression causes B cell hyperactivity.

For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.