Thermo Fisher Scientific CD19 Monoclonal Antibody (LE-CD19)

Applications

Tested Dilution

Publications

Western Blot (WB)

-

View 1 publication 1 publication

Immunohistochemistry (Paraffin) (IHC (P))

1:100-1:200

-

Flow Cytometry (Flow)

Assay-dependent

-

ELISA (ELISA)

Assay-dependent

-

Product Specifications

Species Reactivity

Human

Published species

Human

Host/Isotype

Mouse / IgG1

Class

Monoclonal

Type

Antibody

Clone

LE-CD19

Immunogen

CD19 peptide CGPDPAWGGGGRMGTWSTR (C-Terminus) coupled to KLH (aa 539-556). if (typeof window.$mangular === undefined || !window.$mangular) { window.$mangular = {}; } $mangular.antigenJson = \[{targetFamily:CD19,uniProtId:P15391-1,ncbiNodeId:9606,antigenRange:539-556,antigenLength:556,antigenImageFileName:MA1-81724_CD19_P15391-1_House_mouse.svg,antigenImageFileNamePDP:MA1-81724_CD19_P15391-1_House_mouse_PDP.jpeg,sortOrder:1}\]; $mangular.isB2BCMGT = false; $mangular.isEpitopesModalImageMultiSizeEnabled = true;

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Conjugate

Unconjugated Unconjugated Unconjugated

Form

Liquid

Concentration

1 mg/mL

Purification

Protein A

Storage buffer

PBS, pH 7.4

Contains

0.09% sodium azide

Storage conditions

Store at 4°C short term. For long term storage, store at -20°C, avoiding freeze/thaw cycles.

Shipping conditions

Ambient (domestic); Wet ice (international)

RRID

AB_927780

Product Specific Information

Membrane permeabilization is required for flow cytometry applications. For FACS analysis, use 10 µL of the suggested working dilution to label 1x10^6 cells in 100 µL. A suggested positive control for immunohistochemical applications is tonsil.

Mouse anti Human CD19 antibody, clone LE-CD19 recognizes an epitope within the C-terminal cytoplasmic tail sequence of human CD19, a single pass type I transmembrane glycoprotein containing two C2 type Ig-like domains in the N-terminal extracellular region and four potential phosphorylation sites for tyrosine together with a single serine in the cytoplasmic region.

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.