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APC Anti-human CD19 Antibody
HIB19
HIB19 is an anti-human monoclonal antibody that recognizes the CD19 antigen. CD19 (also known as CVID3) is a 95 kD glycoprotein that is located on the surface of cells like stem cells, dendritic cells and B cells. In certain organisms, CD19 promotes release of sequestered calcium ion into cytosol, plays a role in the upregulation of phosphatidylinositol 3-kinase activity and acts to positively regulate protein kinase B signaling. In addition, it is a member of critical cellular pathways, for example, the antigen receptor-mediated signaling pathway and B cell receptor signaling pathway. From a research standpoint, it is of biological interest due to its association with key macromolecules/ligands such as lyn. CD19 is a very popular antibody target, with over 36000 publications in the last decade. CD19 is often used in flow cytometry applications as a phenotypic marker for differentiation of cell types, specifically in the study of immunology and costimulatory molecules. This antibody was purified through affinity chromatography and conjugated to APC (ex/em = 651/660 nm). It is compatible with the 642 nm laser and 664/20 nm bandpass filter (for example, as in the Luminex Guava easyCyte).
(Top) Spectral emission profiles generated using four spatially offset lasers (355 nm, 405 nm, 488 nm, and 640 nm). Each laser produced a distinct emission pattern, and their combination yielded the composite spectral signature. (Bottom) Flow cytometry analysis of whole blood stained with APC Anti-human CD19 Antibody (HIB19). The fluorescence signal was monitored using an Cytek Aurora flow cytometer in the specific R1-A channel.
(Top) Spectral emission profiles generated using four spatially offset lasers (355 nm, 405 nm, 488 nm, and 640 nm). Each laser produced a distinct emission pattern, and their combination yielded the composite spectral signature. (Bottom) Flow cytometry analysis of whole blood stained with APC Anti-human CD19 Antibody (HIB19). The fluorescence signal was monitored using an Cytek Aurora flow cytometer in the specific R1-A channel.
datasheet
Datasheet
sds
SDS
COA
CatalogSize
Price
Quantity
101921C025 tests
Price
101921C1100 tests
Price
101921C2500 tests
Price
 
Physical properties
Molecular weightN/A
Solventwater
Antibody properties
Other namesB4
CloneHIB19
HostMouse
ReactivityHuman
Spectral properties
Correction factor (280 nm)0.195
Extinction coefficient (cm -1 M -1)
730000
Excitation (nm)651
Emission (nm)660
Storage, safety and handling
H-phraseH303, H313, H333
Hazard symbolXN
Intended useResearch Use Only (RUO)
R-phraseR20, R21, R22
StorageRefrigerated (2-8 °C); Minimize light exposure
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Page updated on May 6, 2026