Phalloidin Labeling Probes
Phalloidin Labeling Probes
Invitrogen™

Phalloidin Labeling Probes

Achieve precise and reliable F-actin staining with fluorescent and biotinylated phalloidins. Phalloidin conjugates are widely used in imaging applications to selectively label F-actin in a variety of sample types including fixed and permeabilized cells, tissue sections, and cell-free experiments.
製品番号(カタログ番号)励起波長域染色剤タイプ
A30106Orange555/565 nmAlexa Fluor Plus 555
A22281Blue346⁄442Alexa Fluor™ 350
A30104Violet405/450Alexa Fluor™ Plus 405
A12379Green495⁄518Alexa Fluor™ 488
O7466Green496⁄520Oregon Green™ 488
F432Green496⁄516FITC(フルオレセイン)
A22282Yellow531⁄554Alexa Fluor™ 532
R415Red-orange540⁄565TRITC(テトラメチルローダミンイソチオシアン酸塩)
A22283Orange556⁄570Alexa Fluor™ 546
A34055Orange555⁄565Alexa Fluor™ 555
B3475Red558⁄569BODIPY™
A12380Orange-red578⁄600Alexa Fluor™ 568
A12381Red581⁄609Alexa Fluor™ 594
T7471Red591⁄608Texas Red™
A22284Far-red632⁄647Alexa Fluor™ 633
A34054Far-red633⁄647Alexa Fluor™ 635
A22287Far-red650⁄668Alexa Fluor™ 647
A30107Far-red650/668 nmAlexa Fluor Plus 647
A22285Near-infrared663⁄690Alexa Fluor™ 660
A22286Near-infrared679⁄702Alexa Fluor™ 680
A30105Near-infrared758/784Alexa Fluor™ Plus 750
B7474NoneNoneビオチン-XX
P3457NoneNonePhalloidin (unlabeled)
製品番号(カタログ番号) A30106
価格(JPY)
133,300
Each
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色:
Orange
励起波長域:
555/565 nm
染色剤タイプ:
Alexa Fluor Plus 555
Fluorescent and biotinylated phalloidins are water soluble and bind to filamentous actin (F-actin) with nanomolar affinity, making them convenient probes for labeling, identifying, and quantifying F-actin in cryopreserved tissue sections, fixed and permeabilized cells, and cell-free experiments. Phalloidin conjugates bind similarly to actin from various species, including plants and animals, enabling staining of the cytoskeleton in a wide range of samples.

A variety of phalloidin conjugates for filamentous (F-actin) staining are available, including fluorescent Alexa Fluor and Alexa Fluor Plus phalloidins, along with phalloidins conjugated to classic fluorescent dyes such as BODIPY, fluorescein, and rhodamine. Phalloidin staining is spectrally compatible with other fluorescent stains used in cellular analyses such as GFP/RFP, Qdot nanocrystals, and other Alexa Fluor conjugates and antibodies. Biotin‐XX Phalloidin can be used to visualize actin filaments via fluorescent streptavidin tags or standard enzyme-mediated avidin/streptavidin techniques such as in electron microscopy. Unlabeled phalloidin is available for use as a control in blocking F‐actin staining or in promoting polymerization.

Phalloidin conjugates bind to both large and small actin filaments with similar affinity in a 1:1 stoichiometry between phallotoxin and actin subunits. They do not bind G-actin monomers.

Alexa Fluor and Alexa Fluor Plus phalloidin conjugates for F-actin staining

Fluorescent Alexa Fluor dye conjugates of phalloidin are popular F-actin stains, offering color choices across the full spectral range. These phalloidin conjugates provide researchers with fluorescent probes that are superior in brightness and photostability compared to other spectrally similar conjugates.

Alexa Fluor Plus Phalloidin conjugates retain the same specificity for actin but offer 3-5 times greater sensitivity and brightness compared to the corresponding Alexa Fluor Phalloidin conjugate. This increased brightness is beneficial for challenging F-actin imaging, such as the super‐resolution microscopy methods SIM and STORM, and for reliable staining of actin stress fibers.

Features of phalloidin probes

  • High specificity—binds selectively to F-actin, which allows for precise labeling of actin filaments in fixed cells and cryopreserved tissues
  • Strong affinity—nanomolar binding affinity for F-actin, which ensures stable and reliable actin staining
  • Extensive fluorescent conjugate options—over twenty conjugated varieties of phalloidin
  • Compatibility with fixed samples—typically used with fixed cells and tissues, making them suitable for actin staining in detailed structural studies, immunofluorescence staining, and IHC applications
  • Multiplexing capability—the wide availability of phalloidin conjugates enables their use in combination with other fluorescent probes and antibodies for multiplex imaging. Biotinylated phalloidin can be made use of in downstream streptavidin steps.
  • Quantitative analysis—can be used for quantitative analysis of F-actin distribution and density within cells, aiding in the study of cytoskeletal dynamics. The unlabeled phalloidin can be titrated as a control.
  • Ease of use—staining is straightforward and quick
  • Excellent stability—exhibit good photostability, which is essential for prolonged imaging sessions and time-lapse studies
  • Wide applicability—used for a range of applications, including studying cell morphology, motility, and the effects of drugs on the actin cytoskeleton
研究用にのみ使用できます。診断用には使用いただけません。
仕様
Orange
染色剤タイプAlexa Fluor Plus 555
励起波長域555/565 nm
使用対象 (装置)Fluorescence Microscope, Flow Cytometer, Confocal Microscope, Compatible with TRITC/RFP filter set
製品ラインAlexa Fluor
数量各 1
出荷条件室温または湿氷に対応
標識タイプAlexa Fluor色素
製品タイプファロイジン
SubCellular Localizationアクチン
Unit SizeEach
組成および保存条件
300ユニット/スライド用に十分な原材料が入ったバイアル1本入りです。
受け取り後、≤–20°Cで保存してください。乾燥した状態で、遮光して保護してください。
指示どおりに保管することで、製品の状態は1年以上安定します。

よくあるご質問(FAQ)

Can I combine Click-iT or Click-iT Plus reactions with phalloidin conjugates used for actin staining?

We do not recommend using phalloidin conjugates for staining actin in combination with traditional Click-iT or Click-iT Plus reactions since phalloidin is extremely sensitive to the presence of copper.

For staining actin in combination with traditional Click-iT or Click-iT Plus reactions, we recommend using anti-α-actin antibodies for staining actin in the cytoskeleton. You can find a list of our actin antibodies here.

Another option would be to use the Click-iT Plus Alexa Fluor Picolyl Azide Toolkit (Cat. Nos. C10641, C10642, C10643). These Click-iT Plus toolkits provide Copper and Copper protectant separately which makes it easier to titrate the copper concentration to obtain optimal labeling with minimal copper-mediated damage. You may need to optimize the click reaction with the lowest possible concentration of copper and then perform the phalloidin staining.

Find additional tips, troubleshooting help, and resources within our Cell Analysis Support Center.

I am labeling cultured cells with phalloidin and not seeing any labeling. What could cause this?

If the F-actin is depolymerized, phalloidin will not bind. Any processing steps or any treatments/compound that can promote depolymerization would impact phalloidin binding. Also, any compounds that also bind to F-actin (without depolymerization) may affect phalloidin binding.

Find additional tips, troubleshooting help, and resources within our Cell Analysis Support Center.

Is there any difference between the Alexa Fluor phalloidin products and the Alexa Fluor Plus phalloidin products?

No. They differ only in the dyes attached to the phalloidin. The phalloidin has the same structure in all of the products.

Find additional tips, troubleshooting help, and resources within our Cell Analysis Support Center.

Is there any difference between the Alexa Fluor phalloidin products and the Alexa Fluor &34;Plus&34; phalloidin products?

No. They differ only in the dyes attached to the phalloidin. The phalloidin has the same structure in all of the products.

Find additional tips, troubleshooting help, and resources within our Cell Analysis Support Center.

I'm trying to label my paraffin sections for F-actin with a phalloidin conjugate, but I'm not seeing any signal. Why?

When cells and tissues are treated with solvents such as xylene or acetone (for example during deparaffinization of tissue sections), it affects the F-actin in a way that prevents phalloidins from binding. Phalloidin may be used with cryosections, which are not typically washed with organic solvents, or anti-actin antibodies may be used.

Find additional tips, troubleshooting help, and resources within our Cell Analysis Support Center.