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49429

Sigma-Aldrich

Phalloidin–Atto 532

suitable for fluorescence, ≥90.0% (HPLC)

Sinónimos:

Atto 532–Phalloidin

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About This Item

Código UNSPSC:
12352108
NACRES:
NA.32

Ensayo

≥90.0% (HPLC)

fabricante / nombre comercial

ATTO-TEC GmbH

λ

in acetonitrile: water (1:9) (with 0.01% trifluoroacetic acid)

Absorción UV

λ: 534-540 nm Amax

idoneidad

suitable for fluorescence

temp. de almacenamiento

−20°C

Descripción general

Atto 532 is a novel fluorescent label related to the well-known dye Rhodamine 6G. 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, high fluorescence quantum yield, high thermal and photo-stability, excellent water solubility, and very little triplet formation. After coupling to a substrate Atto 532 Phalloidin carries a net electrical charge of -1. 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.

Aplicación

Fluorescent conjugates of phalloidin, rhodamine-phalloidin staining reagents, such as Phalloidin–Atto 532 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.

Información legal

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

Código de clase de almacenamiento

11 - Combustible Solids

Clase de riesgo para el agua (WGK)

WGK 3

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable

Equipo de protección personal

Eyeshields, Gloves, type N95 (US)

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Certificados de análisis (COA)

Lot/Batch Number
BCCL7603
BCCL5711
BCCH4070
BCCH2994
BCCD4326

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α-Amanitin from Amanita phalloides, ≥85% (HPLC), powder

Sigma-Aldrich

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α-Amanitin

J E Bowe et al.
Diabetologia, 56(4), 783-791 (2013-01-25)
Glucose plays two distinct roles in regulating insulin secretion from beta cells--an initiatory role, and a permissive role enabling receptor-operated secretagogues to potentiate glucose-induced insulin secretion. The molecular mechanisms underlying the permissive effects of glucose on receptor-operated insulin secretion remain
Models of the collective behavior of proteins in cells: tubulin, actin and motor proteins.
Tuszynski JA, Brown JA, Sept D.
J. Biol. Physics, 29, 401-428 (2003)
Magdalena Izdebska et al.
Acta histochemica, 115(5), 487-495 (2013-01-15)
Quantum dots (QDs) are fluorescent nanocrystals whose unique properties are fundamentally different from organic fluorophores. Moreover, their cores display sufficient electron density to be visible under transmission electron microscopy (TEM). Here, we report a technique for phalloidin-based TEM detection of
Aditi Prabhakar et al.
Biochemistry, 58(48), 4842-4856 (2019-11-12)
Transmembrane mucin-type glycoproteins can regulate signal transduction pathways. In yeast, signaling mucins regulate mitogen-activated protein kinase (MAPK) pathways that induce cell differentiation to filamentous growth (fMAPK pathway) and the response to osmotic stress (HOG pathway). To explore regulatory aspects of
Technical Review. Types of Imaging-Direct STORM.
Jensen, E.; Crossman, D. J.
The Anatomical Record, 297(12), 2227-2231 (2014)
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