Phalloidin-iFluor 555 Reagent

Product details

Phalloidin-iFluor 555 Reagent (equivalent to Alexa Fluor^® 555-labeled phalloidin) selectively binds to F-actins. It can be detected with a fluorescent microscope at Ex/Em = 556/574 nm.

Each 300 test product includes 1 vial containing 30 µg of iFluor 555-dye-conjugated-phalloidin in 30 µL. We recommend using this at a 1:1000 dilution, see protocol booklet for more instructions.

Phalloidin conjugates are convenient probes for labeling, identifying and quantifying animal or plant actin filaments in formaldehyde-fixed and permeabilized tissue sections, cell cultures or cell-free experiments. They can also be used in paraffin-embedded samples that have been de-paraffinized.

Staining fixed cell or tissue samples with phalloidin conjugates is very simple; it requires a single 20-90 min incubation with the phalloidin, followed by 3 short wash steps. Phalloidin staining can be combined with antibody-based staining by adding the phalloidin conjugate during either the primary or secondary antibody incubation step.

When used in unfixed samples, phalloidin binding leads to a decrease in the disassociation rate of actin subunits from the ends of actin filaments, essentially stabilizing actin filaments through the prevention of filament depolymerisation.

Phalloidin-iFluor 555 Reagent Protocol Summary

- Prepare samples in microplate wells
- Remove liquid from samples in the plate
- Add Phalloidin-iFluor 555 (100 µL/well)
- Stain the cells at room temperature for 20 to 90 minutes
- Wash the cells
- Examine the specimen under microscope with TRITC filter

How other researchers are using

Phalloidin-iFluor 555 Reagent has been used in a variety of sample type including:
- Rabbit corneas ¹
- Human Mesodermal Progenitor Cells ²
- Humanumbilical vein endothelial cell line ³

References:
¹ - Song E et al. 2024; ² - Stцberl N et al. 2023; ³ - Songjang W et al. 2023.

Related and recommended products

Review other popular phalloidin dye conjugates, including Phalloidin-iFluor 488 (ab176753), Phalloidin-iFluor 647 (ab176759), Phalloidin-iFluor 594 (ab176757), and Rhodamine Phalloidin (ab235138), search the website to see all phallodin conjugates, or read the phalloidin staining protocol.

Reagent Preparation

Before opening, briefly centrifuge the small vial at low speed to ensure all contents are collected at the bottom and to prevent loss of material.