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Invitrogen
CD19 Monoclonal Antibody (6D5)
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Product Details
MA1-80359
Applications
Tested Dilution
Publications
Product Specifications
Species Reactivity
Mouse
Published species
Mouse
Host/Isotype
Rat
/ IgG2a
Class
Monoclonal
Type
Antibody
Clone
6D5
Immunogen
Human K562 cell line transfected with murine CD19
Conjugate
Form
Liquid
Concentration
1 mg/mL
Amount
100 µg
Purification
Protein G
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
Product Specific Information
For FACS analysis, use 10 µL of the suggested working dilution to label 1x10^6 cells in 100 µL.
Rat anti Mouse CD19 antibody, clone 6D5 recognizes the murine CD19 cell surface antigen, a 95kDa glycoprotein expressed by B lymphocytes. Clone 6D5 has been shown to recognize the same epitope as clone ID3 in cross-competition assays.
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.
Bioinformatics
Protein Aliases: B-lymphocyte antigen CD19; CD19; Differentiation antigen CD19; Leu-12
Gene Aliases: AW495831; Cd19
UniProt ID: (Mouse) P25918
Entrez Gene ID: (Mouse) 12478
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Performance Guarantee
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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