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CD19 Antibody (PA5-27442) in ICC/IF
CD19 Polyclonal Antibody detects CD19 protein at cell membrane by immunofluorescent analysis. Sample: Raji cells were fixed in 4% paraformaldehyde at RT for 15 min. Green: CD19 stained by CD19 Polyclonal Antibody (Product # PA5-27442) diluted at 1:500. Blue: Fluoroshield with DAPI .
Product Details
PA5-27442
Applications
Tested Dilution
Publications
Product Specifications
Species Reactivity
Human,
Mouse
Host/Isotype
Rabbit
/ IgG
Class
Polyclonal
Type
Antibody
Immunogen
Recombinant fragment corresponding to a region within amino acids 282 and 556 of Human CD19
Conjugate
Form
Liquid
Concentration
0.21 mg/mL
Purification
Antigen affinity chromatography
Storage buffer
PBS, pH 7, with 20% glycerol, 1% BSA
Contains
0.025% ProClin 300
Storage conditions
Store at 4°C short term. For long term storage, store at -20°C, avoiding freeze/thaw cycles.
Shipping conditions
Wet ice
RRID
AB_2544918
Product Specific Information
Recommended positive controls: Raji, mouse leukocyte.
Predicted reactivity: Pig (86%), Bovine (82%).
Store product as a concentrated solution. Centrifuge briefly prior to opening the vial.
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.
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Bioinformatics
Protein Aliases: B-lymphocyte antigen CD19; B-lymphocyte surface antigen B4; CD19; Differentiation antigen CD19; Leu-12; T-cell surface antigen Leu-12
Gene Aliases: AW495831; B4; CD19; CVID3
UniProt ID: (Human) P15391, (Mouse) P25918
Entrez Gene ID: (Human) 930, (Mouse) 12478
chromosome breakage
B cell receptor signaling pathway
positive regulation of release of sequestered calcium ion into cytosol
cellular defense response
cell surface receptor signaling pathway
regulation of phosphatidylinositol 3-kinase signaling
phosphatidylinositol phosphorylation
phosphatidylinositol-mediated signaling
regulation of immune response
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