FITC-labeled ODN 2216 (sodium) is a human-specific TLR9 (toll-like receptor 9) ligand or agonist. FITC-labeled ODN 2216 (sodium) can be used to evaluate CpG ODN cellular uptake and localization by confocal laser-scanning microscopy (excitation 495 nm, emission 520 nm) or flow cytometry.
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