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AB317484

APC Anti-CD19 antibody [EPR5906]

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Rabbit Recombinant Monoclonal CD19 antibody - conjugated to APC. Suitable for IHC-P, ICC/IF, Flow Cyt (Intra) and reacts with Human samples.

View Alternative Names

CD19, B-lymphocyte antigen CD19, B-lymphocyte surface antigen B4, Differentiation antigen CD19, T-cell surface antigen Leu-12

5 Images
Flow Cytometry (Intracellular) - APC Anti-CD19 antibody [EPR5906] (AB317484)
  • Flow Cyt (Intra)

Supplier Data

Flow Cytometry (Intracellular) - APC Anti-CD19 antibody [EPR5906] (AB317484)

Flow cytometric analysis of 4% paraformaldehyde fixed 90% methanol permeabilized Jurkat (human T cell leukemia T lymphocyte from peripheral blood, Left) / Raji (human Burkitt's lymphoma B lymphocyte, Right) cells labelling CD19 with ab317484 at 1/5000 dilution (0.01ug) (Red) compared with a Rabbit IgG monoclonal [EPR25A] - Isotype Control (Allophycocyanin) (ab232814) (Black) isotype control and an unlabelled control (cells without incubation with primary antibody and secondary antibody) (Blue).

Negative control : Jurkat (PMID : 19147785)

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - APC Anti-CD19 antibody [EPR5906] (AB317484)
  • IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - APC Anti-CD19 antibody [EPR5906] (AB317484)

Immunohistochemical analysis of paraffin-embedded Human diffuse large tissue labeling CD19 with ab317484 at 1/100 (5.0 ug/ml) dilution.

Membranous staining on human diffuse large B-cell lymphoma. The section was incubated with ab317484 for 60 mins at room temperature (shown in red). Nuclear DNA was labeled with DAPI (shown in blue). The section was then mounted using Fluoromount®. The immunostaining was performed on a Leica Biosystems BOND RX instrument. Image was taken with a confocal microscope (Leica-Microsystems, TCS SP8). Counterstained with DAPI.

Heat mediated antigen retrieval was performed with Tris-EDTA buffer (pH 9.0, Epitope Retrieval Solution2) for 40 mins.

Immunocytochemistry/ Immunofluorescence - APC Anti-CD19 antibody [EPR5906] (AB317484)
  • ICC/IF

Supplier Data

Immunocytochemistry/ Immunofluorescence - APC Anti-CD19 antibody [EPR5906] (AB317484)

Immunofluorescent analysis of 80% Methanol-fixed, 0.1% TritonX-100 permeabilized Raji (human Burkitt's lymphoma B lymphocyte) cells labelling CD19 with ab317484 at 1/50 dilution (Magenta).

Confocal image showing membranous staining in Raji cells (shown in magenta). The counterstain was observed in green. Nuclear DNA was labeled with DAPI (shown in blue). Negative control : Jurkat (PMID : 19147785) Image was taken with a confocal microscope (Leica-Microsystems, TCS SP8).

ab195887 Anti-alpha Tubulin mouse monoclonal antibody - Microtubule Marker (Alexa Fluor® 488) was used to counterstain tubulin at 1/200 (2.5ug/ml) dilution (Green). The Nuclear counterstain was DAPI (Blue).

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - APC Anti-CD19 antibody [EPR5906] (AB317484)
  • IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - APC Anti-CD19 antibody [EPR5906] (AB317484)

Immunohistochemical analysis of paraffin-embedded Human skeletal muscl tissue labeling CD19 with ab317484 at 1/100 (5.0 ug/ml) dilution.

Negative control : no staining on human skeletal muscle. The section was incubated with ab317484 for 60 mins at room temperature (shown in red). Nuclear DNA was labeled with DAPI (shown in blue). The section was then mounted using Fluoromount®. The immunostaining was performed on a Leica Biosystems BOND RX instrument. Image was taken with a confocal microscope (Leica-Microsystems, TCS SP8). Counterstained with DAPI.

Heat mediated antigen retrieval was performed with Tris-EDTA buffer (pH 9.0, Epitope Retrieval Solution2) for 40 mins.

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - APC Anti-CD19 antibody [EPR5906] (AB317484)
  • IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - APC Anti-CD19 antibody [EPR5906] (AB317484)

Immunohistochemical analysis of paraffin-embedded Human tonsil tissue labeling CD19 with ab317484 at 1/100 (5.0 ug/ml) dilution.

Membranous staining on human tonsil.The section was incubated with ab317484 for 60 mins at room temperature (shown in red). Nuclear DNA was labeled with DAPI (shown in blue). The section was then mounted using Fluoromount®. The immunostaining was performed on a Leica Biosystems BOND RX instrument. Image was taken with a confocal microscope (Leica-Microsystems, TCS SP8). Counterstained with DAPI.

Heat mediated antigen retrieval was performed with Tris-EDTA buffer (pH 9.0, Epitope Retrieval Solution2) for 40 mins.

Key facts

Host species

Rabbit

Clonality

Monoclonal

Clone number

EPR5906

Isotype

IgG

Conjugation

APC

Excitation/Emission

Ex: 650nm, Em: 660nm

Carrier free

No

Reacts with

Human

Applications

ICC/IF, IHC-P, Flow Cyt (Intra)

applications

Immunogen

The exact immunogen used to generate this antibody is proprietary information.

Reactivity data

{ "title": "Reactivity Data", "filters": { "stats": ["", "Species", "Dilution Info", "Notes"], "tabs": { "all-applications": {"fullname" : "All Applications", "shortname": "All Applications"}, "IHCP" : {"fullname" : "Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections)", "shortname":"IHC-P"}, "ICCIF" : {"fullname" : "Immunocytochemistry/ Immunofluorescence", "shortname":"ICC/IF"}, "FlowCytIntra" : {"fullname" : "Flow Cytometry (Intracellular)", "shortname":"Flow Cyt (Intra)"} }, "product-promise": { "all": "all", "testedAndGuaranteed": "tested", "guaranteed": "expected", "predicted": "predicted", "notRecommended": "not-recommended" } }, "values": { "Human": { "IHCP-species-checked": "testedAndGuaranteed", "IHCP-species-dilution-info": "1/100", "IHCP-species-notes": "<p></p>", "ICCIF-species-checked": "testedAndGuaranteed", "ICCIF-species-dilution-info": "1/50", "ICCIF-species-notes": "<p></p>", "FlowCytIntra-species-checked": "testedAndGuaranteed", "FlowCytIntra-species-dilution-info": "1/5000", "FlowCytIntra-species-notes": "<p></p>" } } }

Product details

Patented technology
Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMAb® patents.

What are the advantages of a recombinant monoclonal antibody?
This product is a recombinant monoclonal antibody, which offers several advantages including:

  • - High batch-to-batch consistency and reproducibility
  • - Improved sensitivity and specificity
  • - Long-term security of supply
  • - Animal-free batch production

For more information, read more on recombinant antibodies.

Properties and storage information

Form
Liquid
Purification technique
Affinity purification Protein A
Storage buffer
pH: 7.4 Preservative: 0.02% Sodium azide Constituents: 98% PBS, 1% BSA
Shipped at conditions
Blue Ice
Appropriate short-term storage duration
1-2 weeks
Appropriate short-term storage conditions
+4°C
Appropriate long-term storage conditions
+4°C
Aliquoting information
Upon delivery aliquot
Storage information
Avoid freeze / thaw cycle|Store in the dark

Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

CD19 is a transmembrane protein also known as B4 or B-lymphocyte antigen CD19 with an approximate molecular weight of 95 kDa. It is expressed on the surface of B cells throughout their development from pro-B cells to mature B cells. CD19 functions mechanically as a coreceptor enhancing the sensitivity of B cell receptor (BCR) signaling. This protein plays a significant role in promoting the activation and proliferation of B cells by lowering the threshold for antigen receptor engagement.
Biological function summary

CD19 acts as an essential player in B cell signaling. CD19 integrates signals from the BCR with other coreceptors acting as a signaling hub. It participates in forming a signaling complex that includes proteins like CD21 and CD81 which further amplifies BCR-mediated signaling. This complex plays a critical role in B cell activation differentiation and survival ensuring that immune responses are efficiently mounted against pathogens.

Pathways

The CD19 protein fits into key immune response pathways such as the BCR signaling pathway and the PI3K-Akt signaling pathway. CD19 collaborates with other proteins like CD21 CD81 and PI3K within these pathways. Its interaction in the PI3K-Akt pathway for instance supports critical processes including B cell activation and homeostasis contributing to the adaptive immune response.

CD19 is connected to B cell malignancies and autoimmune diseases. B cell acute lymphoblastic leukemia (ALL) often shows aberrant CD19 expression making it a valuable target for therapeutic interventions like anti-CD19 monoclonal antibodies. Additionally overexpression or mutations of CD19 may contribute to autoimmune diseases by disrupting normal B cell regulation. CD19's connection with proteins like CD22 and CD20 in these pathological contexts highlights its relevance in developing targeted therapies.

Product protocols

For this product, it's our understanding that no specific protocols are required. You can visit:

Target data

Functions as a coreceptor for the B-cell antigen receptor complex (BCR) on B-lymphocytes (PubMed : 29523808). Decreases the threshold for activation of downstream signaling pathways and for triggering B-cell responses to antigens (PubMed : 1373518, PubMed : 16672701, PubMed : 2463100). Activates signaling pathways that lead to the activation of phosphatidylinositol 3-kinase and the mobilization of intracellular Ca(2+) stores (PubMed : 12387743, PubMed : 16672701, PubMed : 9317126, PubMed : 9382888). Is not required for early steps during B cell differentiation in the blood marrow (PubMed : 9317126). Required for normal differentiation of B-1 cells (By similarity). Required for normal B cell differentiation and proliferation in response to antigen challenges (PubMed : 1373518, PubMed : 2463100). Required for normal levels of serum immunoglobulins, and for production of high-affinity antibodies in response to antigen challenge (PubMed : 12387743, PubMed : 16672701, PubMed : 9317126).
See full target information CD19

Product promise

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