CellTag 520 Stain is a visible fluorescent, non-specific cell stain that provides accurate normalization to cell number for In-Cell Western™ Assay applications.
The stain accumulates in both the nucleus and cytoplasm of permeabilized cells, and provides linear fluorescent signal across a wide range of cell types and cell numbers. CellTag 520 Stain is detected in the 520 nm channel. CellTag 520 Stain is applied to the cells during incubation with an IRDye® Secondary Antibodies (e.g., IRDye 680RD or IRDye 800CW), and enables accurate measurement of target protein levels with much higher throughput than Western blotting.
Manufacturer LI-COR Biosciences
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