Each lot of this antibody is quality control tested by intracellular immunofluorescent staining with flow cytometric analysis.?For flow cytometric staining, the suggested use of this reagent is ≤0.25 ?g per million cells in 100 ?l volume. It is recommended that the reagent be titrated for optimal performance for each application.

Additional reported applications (for the relevant formats) include: spatial biology (IBEX)^3,4.

Iterative Bleaching Extended multi-pleXity (IBEX) is a fluorescent imaging technique capable of highly-multiplexed spatial analysis. The method relies on cyclical bleaching of panels of fluorescent antibodies in order to image and analyze many markers over multiple cycles of staining, imaging, and, bleaching. It is a community-developed open-access method developed by the Center for Advanced Tissue Imaging (CAT-I) in the National Institute of Allergy and Infectious Diseases (NIAID, NIH).

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IRF4 is reported to be expressed exclusively in the immune system.

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