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Phalloidin–Atto 590

suitable for fluorescence, ≥90% (HPCE)



≥90% (HPCE)



mol wt

Mw 1473 g/mol




λex 594 nm; λem 624 nm in 0.1 M phosphate pH 7.0


suitable for fluorescence

storage temp.


General description

Atto 590 is a novel fluorescent label that belongs to the class of Rhodamine dyes. It shows a strong absorption, high fluorescence quantum yield, high thermal and photostability, and a very little triplet formation. Atto 590 consists of a mixture of two isomers with practically identical optical absorption and emission 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. Fluorescent conjugates of phalloidin 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-d-dihydroxyleucine) is accessible for chemical modifications without appreciable loss of affinity for actin.

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Storage Class Code

13 - Non Combustible Solids



Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

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Certificate of Origin

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Meng-Hao Pan et al.
Biology of reproduction, 102(6), 1203-1212 (2020-03-14)
Formin-like 3 (FMNL3) is a member of the formin-likes (FMNLs), which belong to the formin family. As an F-actin nucleator, FMNL3 is essential for several cellular functions, such as polarity control, invasion, and migration. However, the roles of FMNL3 during
Qiao-Chu Wang et al.
Theriogenology, 144, 132-138 (2020-01-16)
N-WASP is the mammalian ortholog of WASP which is an actin nucleation promoting factor and has been reported to regulate actin nucleation and polymerization for multiple cell activities. However, the expression and functions of N-WASP in porcine oocytes are still
Yu Zhang et al.
Journal of cellular physiology, 234(10), 18513-18523 (2019-03-27)
Cytoskeleton which includes microtubule and actin filaments plays important roles during mammalian oocyte maturation. In the present study, we showed that protein kinase C mu (PKC mu) was one potential key molecule which affected cytoskeleton dynamics in mouse oocytes. Our
Yu Zhang et al.
Aging, 10(12), 3736-3744 (2018-12-18)
Protein kinase D (PKD) subfamily which includes PKD1, PKD2 and PKD3 is a novel family of serine/threonine kinases. PKD has been widely implicated in the regulation of multiple physiological effects including immune responses, apoptosis and cell proliferation. However, the roles
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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