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50556

Sigma-Aldrich

Phalloidin–Atto 390

BioReagent, suitable for fluorescence, ≥90% (HPLC)

Synonym(s):

Atto 390–Phalloidin

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About This Item

UNSPSC Code:
12352116
NACRES:
NA.32

product line

BioReagent

Assay

≥90% (HPLC)

manufacturer/tradename

ATTO-TEC GmbH

λ

in methanol

UV absorption

λ: 382-388 nm Amax

suitability

suitable for fluorescence

storage temp.

−20°C

General description

Atto 390 Phalloidin is a novel fluorescent label with a coumarin structure. The dye is intended for application in the area of life science, e.g. labeling of DNA, RNA or proteins. Characteristic features of the label are high fluorescence quantum yield, large Stokes-shift, good photostability and low molecular weight.Phalloidin is a fungal toxin isolated from the poisonous mushroom Amanita phalloides. Its toxicity is attributed to the ability to bind F actin in liver and muscle cells. As a result of binding phalloidin, actin filaments become strongly stabilized. Phalloidin has been found to bind only to polymeric and oligomeric forms of actin, and not to monomeric actin. The dissociation constant of the actin-phalloidin complex has been determined to be on the order of 3 x 10–8. Phalloidin differs from amanitin in rapidity of action; at high dose levels, death of mice or rats occurs within 1 or 2 hours.

Application

Fluorescent conjugates of phalloidin, rhodamine-phalloidin staining reagents, such as Phalloidin–Atto 390 are used to label actin filaments for histological applications. Some structural features of phalloidin are required for the binding to actin. However, the side chain of amino acid 7 (g-dihydroxyleucine) is accessible for chemical modifications without appreciable loss of affinity for actin.

Legal Information

This product is for Research use only. In case of intended commercialization, please contact the IP-holder (ATTO-TEC GmbH, Germany) for licensing.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Y Ren et al.
Archives of biochemistry and biophysics, 323(1), 205-214 (1995-10-20)
Prostaglandin H synthase-1 is an integral endoplasmic reticulum membrane protein which catalyzes a key control step in prostaglandin biosynthesis. The overall arrangement of the prostaglandin H synthase-1 polypeptide with respect to the endoplasmic reticulum membrane was examined in transiently transfected
Chloé Clouzeau et al.
Molecular vision, 18, 851-863 (2012-04-25)
Benzalkonium chloride (BAK), the most commonly used preservative in eye drops, is known to induce ocular irritation symptoms and dry eye in long-term treated patients and animal models. As tear film hyperosmolarity is diagnostic of some types of dry eye
Małgorzata Maksymowicz et al.
Cell communication and signaling : CCS, 18(1), 176-176 (2020-11-06)
Lymphotoxin β receptor (LTβR) is a member of tumor necrosis factor receptor (TNFR) superfamily which regulates the immune response. At the cellular level, upon ligand binding, the receptor activates the pro-inflammatory NF-κB and AP-1 pathways. Yet, the intracellular distribution of
Fluorescence lifetime imaging with pulsed diode laser enabled stimulated emission.
Ge, J.; Kuang, C.; Lee, SS.; Kao, FJ
Optics Express, 20(27), 28216-28216 (2012)
Analysis of replication factories in human cells by super-resolution light microscopy.
Cseresnyes, Z.; et al.
BMC Cell Biology, 10(1), 88-88 (2009)
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