Render Target: SSR
Render Timestamp:
5/28/2026, 1:43:57 PM EDT
5/28/2026, 5:43:57 PM UTC
Commit: 7ed46ecc04b401f23a28df741b5078df405d23e4
Cell Signaling Technology Logo - Extra Large
View Featured Offers >>
1% for the planet logo
  1. Home /
  2. Products /
  3. Antibodies /
  4. CD19

CD19 Antibodies

You can find the right CD19 antibody for your scientific research with our 24 antibodies developed in Rabbit and Rat. These antibodies are validated for detecting CD19 in All Expected Species samples using techniques like Flow Cytometry (Fixed/Permeabilized), Flow Cytometry (Live), Western Blotting, Immunoprecipitation, IHC Leica Bond, Immunohistochemistry (Paraffin), Immunofluorescence (Immunocytochemistry) and Single Cell Analysis - InTraSeq™ 3'. Our CD19 antibodies have been cited in 162 publications and have 58 product images.

Target Information

Functions as coreceptor for the B-cell antigen receptor complex (BCR) on B-lymphocytes. Decreases the threshold for activation of downstream signaling pathways and for triggering B-cell responses to antigens. Activates signaling pathways that lead to the activation of phosphatidylinositol 3-kinase and the mobilization of intracellular Ca(2+) stores. Is not required for early steps during B cell differentiation in the blood marrow. Required for normal differentiation of B-1 cells. Required for normal B cell differentiation and proliferation in response to antigen challenges. Required for normal levels of serum immunoglobulins, and for production of high-affinity antibodies in response to antigen challenge. Detected on marginal zone and germinal center B cells in lymph nodes (PubMed:2463100). Detected on blood B cells (at protein level) (PubMed:2463100, PubMed:16672701). 2 alternatively spliced human isoforms have been reported. Note: This description may include information from UniProtKB.

Alternate Names

AW495831; B-lymphocyte antigen CD19; B-lymphocyte surface antigen B4; B4; CD19; Cd19; CD19 antigen; CD19 molecule; CVID3; Differentiation antigen CD19; MGC12802; T-cell surface antigen Leu-12

CD19 Antibody Products

24 Products
Product #
Product Name
Applications
Reactivity
Clonality
1-24 of 24
Application Key:
WB - Western
IHC - Immunohistochemistry
IF - Immunofluorescence
F - Flow Cytometry
ChIP - Chromatin Immunoprecipitation
ELISA+ - ELISA and/or ELISA-like Assays
Species Cross-Reactivity Key:
H-Human M-Mouse R-Rat Hm-Hamster Mk-Monkey Vir-Virus Mi-Mink C-Chicken Dm-D. melanogaster X-Xenopus Z-Zebrafish B-Bovine Dg-Dog Pg-Pig Sc-S. cerevisiae Ce-C. elegans Hr-Horse GP-Guinea Pig Rab-Rabbit All-All Species Expected

Why CST

Cell Signaling Technology is trusted by the global scientific research community. Our highly cited antibodies offer unrivaled specificity and reproducibility. Learn more about why researchers choose CST:

Our Approach/Process Product Performance Guarantee Our Tech Support Promise

Contact

Don’t see an antibody for your specific needs? Browse more products, learn more about our services or get in touch with us:

Browse All Products Custom Conjugation Services Contact Us