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66939

Sigma-Aldrich

Phalloidin–Atto 425

suitable for fluorescence, ≥90% (HPLC)

Synonyme(s) :

Atto 425–Phalloidin

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About This Item

Code UNSPSC :
12352116
Nomenclature NACRES :
NA.32

Niveau de qualité

100

Pureté

≥90% (HPLC)

Fabricant/nom de marque

ATTO-TEC GmbH

λ

in methanol

Absorption UV

λ: 429-435 nm Amax

Adéquation

suitable for fluorescence

Température de stockage

−20°C

Description générale

Atto 425 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 strong absorption, 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 425 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.

Informations légales

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

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

Eyeshields, Gloves, type N95 (US)

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Louise R Page
Evolution & development, 4(3), 212-222 (2002-06-11)
Results of this study on two species of vetigastropods contradict the long-standing hypothesis, originally proposed by Garstang (1929), that the larval retractor muscles power the morphogenetic movement of ontogenetic torsion in all basal gastropods. In the trochid Calliostoma ligatum and
Rosangela Invernizzi et al.
Oncology, 75(3-4), 237-244 (2008-10-16)
Pegfilgrastim is a covalent conjugate of filgrastim and polyethylene glycol that has proved to be effective in supporting myelopoiesis during chemotherapy. Since very limited information is available on the biological effects of pegfilgrastim on neutrophils exposed to chemotherapy, we analyzed
Takahiro Shimizu et al.
Cell calcium, 45(3), 226-232 (2008-12-03)
We demonstrate here that the transient receptor potential melastatin subfamily channel, TRPM4, controls migration of bone marrow-derived mast cells (BMMCs), triggered by dinitrophenylated human serum albumin (DNP-HSA) or stem cell factor (SCF). Wild-type BMMCs migrate after stimulation with DNP-HSA or
Fluoreszierende Rhodamine und fluorogene Carbopyronine fur die STED-Mikroskopie lebender Zellen.
Butkevich, Alexey N.; et al.
Angewandte Chemie (International Edition in English), 128(10), 3350-3355 (2016)
Direct observation of the nanoscale dynamics of membrane lipids in a living cell. Nature.
Eggeling, C.; et al.
Nature, 457, 1159-1162 (2009)
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Atto dyes are a series of fluorescent dyes that meet the critical needs of modern fluorescent technologies.

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