Name: iFluor® 514 Anti-mouse CD19 Antibody *1D3*
Brand: AAT Bioquest
SKU: 10194060
Availability: InStock

iFluor® 514 Anti-mouse CD19 Antibody

1D3

1D3 is an anti-mouse monoclonal antibody that is specific for the CD19 antigen. CD19 (sometimes referred to as B4) is a 95 kD transmembrane glycoprotein that is expressed on the surface of cells like B cells and stem cells. CD19 plays a role in essential cellular pathways, namely, the antigen receptor-mediated signaling pathway and B cell receptor signaling pathway. In addition, in some organisms, it is an enhancer of release of sequestered calcium ion into cytosol, is a promoter of protein kinase B signaling and is a positive regulator of phosphatidylinositol 3-kinase activity. From a research standpoint, it is of biological interest due to its association with vital macromolecules/ligands like CD225, CD81, PI3-kinase and fyn. CD19 is a very popular antibody target, with over 36000 publications in the last decade. CD19 has been widely used in costimulatory molecules and immunology research, commonly serving as a phenotypic marker for differentiating cell types in flow cytometric applications. This antibody was purified through affinity chromatography and conjugated to iFluor® 514 (ex/em = 510/527 nm). It is compatible with the 532 nm laser and 575/36 nm bandpass filter (for example, as in the Thermo Fisher Attune NxT).

Datasheet

COA

Catalog	Size	Price	Quantity
10194060	100 tests	Price
10194061	500 tests	Price

Conjugation

We provide custom conjugation services for this antibody (e.g. labeling of CD19 antibody with HRP). A list of available labels can be found in the table below:

Label Type	Available Labels
AF	AF350, AF488, AF555, AF594, AF647, AF680, AF700, AF750
Proteins	HRP, Alkaline Phosphatase, Streptavidin
Tandems	APC, APC/Cy7, APC/AF750, APC/iFluor™ 700, APC/iFluor™ 750, PE, PE/Cy5, PE/Cy7, PE/AF610, PE/AF700, PE/iFluor™ 594, PE/iFluor™ 647, PE/iFluor™ 700, PE/iFluor™ 750, PE/Texas Red®, PerCP, PerCP/Cy5.5
Small Molecules	Biotin
Traditional Dyes	FITC (fluorescein), TRITC, PacBlue, PacOrange, Cy3, Cy5
iFluor	350, 405, 430, 450, 488, 514, 532, 546, 555, 560, 568, 594, 610, 633, 647, 660, 670, 680, 700, 710, 750, 790, 800, 810, 820, 840, 860, A7
mFluor	UV375, UV460, Violet 450, Violet 500, Violet 510, Violet 540, Blue 570, Green 620, Red 700, Red 780

For additional information about custom conjugations, please consult our services page

here

Antibody properties

Other names	B4
Clone	1D3
Host	Rat
Isotype	IgG2a, kappa
Reactivity	Mouse
Application	Flow Cytometry (FACS), Fluorescence Imaging

Spectral properties

Absorbance (nm)	511
Correction factor (260 nm)	0.265
Correction factor (280 nm)	0.116
Extinction coefficient (cm ^-1 M ^-1)	75000 ¹
Excitation (nm)	511
Emission (nm)	527
Quantum yield	0.83 ¹

Usage and storage

Intended use

Research Use Only (RUO)

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Page updated on August 20, 2026