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Invitrogen
CD19 Monoclonal Antibody (LC1), eBioscience™
Application
FIGURE: 1 / 11
CD19 Antibody (14-0190-82) in IHC (P)
Immunohistochemical analysis of CD19 was performed using formalin-fixed paraffin-embedded mouse thymus and mouse brain tissue sections. To expose the target protein, heat-induced epitope retrieval was performed on de-paraffinized sections using eBioscience™ IHC Antigen Retrieval Solution - High pH (10X) (Product # 00-4956-58) diluted to 1X solution in water in a decloaking chamber at 110 degree Celsius for ... View More
Product Details
14-0190-82
Applications
Tested Dilution
Publications
Product Specifications
Species Reactivity
Human,
Mouse
Host/Isotype
Mouse
/ IgG1, kappa
Class
Monoclonal
Type
Antibody
Clone
LC1
Conjugate
Unconjugated
Form
Liquid
Concentration
0.5 mg/mL
Purification
Affinity chromatography
Storage buffer
PBS, pH 7.2
Contains
0.09% sodium azide
Storage conditions
4°C
Shipping conditions
Ambient (domestic); Wet ice (international)
RRID
AB_11219274
Product Specific Information
Description: The LC1 monoclonal antibody reacts with human CD19, a 95 kDa transmembrane glycoprotein. CD19 is expressed by B cells during all stages of development excluding the terminally differentiated plasma cells. Follicular dendritic cells also express CD19. Together CD21, CD81, Leu13, MHC class II, and CD19 form a multi-molecular complex that associates with BCR. Signaling through CD19 induces tyrosine phosphorylation, calcium flux and proliferation of B cells. The antibody recognizes a sequence near the carboxy terminus.
Applications Reported: This LC1 antibody has been reported for use in western blotting and immunohistochemical staining of formalin-fixed paraffin embedded tissue sections.
Applications Tested: This LC1 antibody has been tested by western blot and can be used at less than or equal to 5 µg/mL. This antibody has also been tested by immunohistochemistry on FFPE human tonsil using high pH antigen retrieval at less than or equal to 10 µg/mL. It is recommended that the antibody be carefully titrated for optimal performance in the assay of interest.
Purity: Greater than 90%, as determined by SDS-PAGE.
Aggregation: Less than 10%, as determined by HPLC.
Filtration: 0.2 µm post-manufacturing filtered.
Target Information
CD19 is a member of the immunoglobulin superfamily, characterized by two Ig-like domains, and is expressed on B cells throughout all stages of development, excluding terminally differentiated plasma cells. It is also expressed on follicular dendritic cells and has been observed on myeloid leukemia cells, particularly those of monocytic lineage. CD19 is considered the earliest and broadest B cell-restricted antigen, and its expression is found in all B cell precursor leukemias. CD19 forms a multimolecular complex with CD21, CD81, Leu13, MHC class II, and the B cell receptor (BCR), playing a crucial role in B cell signaling. As a signal-amplifying coreceptor for the BCR, CD19 lowers the threshold for antigen receptor-dependent stimulation, allowing B cells to respond specifically and sensitively to various antigens through low-affinity antigen receptors. Signaling through CD19 induces tyrosine phosphorylation, calcium flux, and proliferation of B cells. Beyond its role as a BCR coreceptor, CD19 can also signal independently of BCR co-ligation, serving as a central regulatory component upon which multiple signaling pathways converge. This makes CD19 an important functional regulator of both normal and malignant B cell proliferation. Mutations in the CD19 gene can result in hypogammaglobulinemia, a condition characterized by low levels of immunoglobulins, while CD19 overexpression can lead to B cell hyperactivity. CD19 is expressed on 100% of peripheral B cells, as defined by the expression of kappa or lambda light chains, underscoring its significance in B cell function and immune regulation.
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
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If an Invitrogen™ antibody doesn't perform as described on our website or datasheet,we'll replace the product at no cost to you, or provide you with a credit for a future purchase.*
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