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18846

Sigma-Aldrich

Atto 655 Phalloidin

suitable for fluorescence, ≥90.0% (sum of isomers, HPLC)

同義詞:

Atto 655 Phalloidin

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About This Item

分類程式碼代碼:
12352108
NACRES:
NA.32

化驗

≥90.0% (sum of isomers, HPLC)

形狀

solid

製造商/商標名

ATTO-TEC GmbH

透射率

254 nm
655 nm

螢光

λex 663 nm; λem 684 nm in 0.1 M phosphate pH 7.0

紫外吸收

λ: 651- 657 nm Amax

適合性

suitable for fluorescence

儲存溫度

−20°C

一般說明

Atto 655 belongs to a new generation of fluorescent labels. The dye is designed for application in the area of life science, e.g. labeling of DNA, RNA or proteins. Characteristic features of the label are strong absorption, good fluorescence quantum yield, excellent thermal and photo-stability, outstanding ozone resistance, very good water solubility, and very little triplet formation. Atto 655 is a zwitterionic dye with a net electrical charge of zero. The fluorescence is efficiently quenched by electron donors like guanine, tryptophan, etc.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.

應用

Fluorescent conjugates of phalloidin, rhodamine-phalloidin staining reagents, such as Phalloidin–Atto 655 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.

法律資訊

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

儲存類別代碼

11 - Combustible Solids

水污染物質分類(WGK)

WGK 3

閃點(°F)

Not applicable

閃點(°C)

Not applicable

個人防護裝備

Eyeshields, Gloves, type N95 (US)


分析證明 (COA)

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文章

Atto dyes are a series of fluorescent dyes that meet the critical needs of modern fluorescent technologies.

Atto 染料是一系列能滿足現代螢光技術關鍵需求的螢光染料。

我們的科學家團隊在所有研究領域都有豐富的經驗,包括生命科學、材料科學、化學合成、色譜、分析等.

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