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MABF1647

Sigma-Aldrich

Anti-CD19 Antibody, FITC Conjugated, (human), clone SJ25C1

clone SJ25C1, from mouse, FITC conjugate

Synonym(s):

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

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About This Item

UNSPSC Code:
12352203
eCl@ss:
32160702

biological source

mouse

conjugate

FITC conjugate

antibody form

purified antibody

antibody product type

primary antibodies

clone

SJ25C1, monoclonal

species reactivity

human

technique(s)

flow cytometry: suitable

isotype

IgG1κ

UniProt accession no.

shipped in

wet ice

target post-translational modification

unmodified

Gene Information

human ... CD19(930)

General description

The SJ25C1 antibody reacts with human CD19, a 95 kDa glycoprotein which acts as a co-receptor, along with CD21 (CR2), CD81 (TAPA-1) and CD225 (Leu13), in support of the functional B cell receptor (BCR). This complex provides antigen-specific recognition and subsequent activation of B cells to proliferate and differentiate into antibody-secreting cells (plasma cells) or memory B cells, which are crucial for secondary antigen encounter. Upon activation and tyrosine phosphorylation, the CD19 molecule can provide an anchor for cytoplasmic signaling proteins such as GRB2, SOS or PLCG2. CD19 is a lineage-differentiation marker, as its expression is detectable at the earliest B cell stages, through development, and is finally lost upon transition to mature plasma cells.

The SJ25C1 antibody is widely used as a phenotypic marker for CD19 expression on B cells, as well as on dendritic cell subsets.

Immunogen

Immunogen information for this antibody is proprietary information.

Application

Research Category
Inflammation & Immunology
This mouse monoclonal Anti-CD19 (human), FITC, clone SJ25C1, Cat. No. MABF1647 is validated for use in Flow Cytometry, for the detection of CD19.

Quality

This monoclonal antibody was purified from tissue culture supernatant via affinity chromatography. The purified antibody was conjugated under optimal conditions, with unreacted dye removed from the preparation.

Evaluated by Flow Cytometry in human peripheral blood lymphocytes.

Flow Cytometry Analysis (FC): 0.5 μg of this antibody detected CD19 in one million human peripheral blood lymphocytes.

Physical form

Purified by size-exclusion chromatography
Purified mouse monoclonal in buffer containing 10 mM NaH2PO4, 150 mM NaCl, 0.09% NaN3, 0.1% gelatin, pH7.2.

Storage and Stability

Stable for 1 year at 2-8°C from date of receipt.
Handling Recommendations: Upon receipt and prior to removing the cap, centrifuge the vial and gently mix the solution. Aliquot into microcentrifuge tubes and store at -20°C. Avoid repeated freeze/thaw cycles, which may damage IgG and affect product performance.
Note: Variability in freezer temperatures below -20°C may cause glycerol containing solutions to become frozen during storage.

Other Notes

Concentration: Please refer to lot specific datasheet.

Disclaimer

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

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Storage Class Code

12 - Non Combustible Liquids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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