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94149

Sigma-Aldrich

Atto 647N-Streptavidin

BioReagent, suitable for fluorescence

Sinónimos:

Streptavidin-Atto 647N

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About This Item

UNSPSC Code:
12161900
NACRES:
NA.25

product line

BioReagent

Quality Level

100

form

powder

manufacturer/tradename

ATTO-TEC GmbH

λ

in ethanol (with 0.1% trifluoroacetic acid)

UV absorption

λ: 650.0-656.0 nm Amax

suitability

corresponds for gel electrophoresis
suitable for fluorescence

storage temp.

−20°C

General description

Atto 647N is a new generation fluorescent dye dedicated towards the red spectral region. It is a cationic dye and carries a net electrical charge of +1 post substrate coupling reaction. Streptavidin, isolated from Streptomyces avidinii, is a tetrameric protein of 4 x 13.2 kDa which binds very tightly to the small molecule biotin. The dissociation constant of the complex is extremely small (Kd ≈ 10-15 M), ranking among the strongest non-covalent interactions. Atto streptavidin conjugates are readily soluble in water.

Application

Atto 647N-Streptavidin is designed for application in the area of life science, e.g., labeling of DNA, RNA or proteins. Atto streptavidin conjugates may be used as secondary detection reagents in flow cytometry, immunoassays, blot analysis, and histochemical applications. Atto 647N -Streptavidin is suitable for multiplex analysis, including multicolor imaging.

Features and Benefits

Atto 647N- Streptavidin has the following benefits-

  • Highly photostable. Strong absorption.
  • Excellent fluorescent quantum yield.
  • Highly resistant to ozone degradation.
  • Minimal triplet formation.

Analysis Note

dye-to-protein ratio ≥1.5

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Busque Certificados de análisis (COA) introduciendo el número de lote del producto. Los números de lote se encuentran en la etiqueta del producto después de las palabras «Lot» o «Batch»

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Spatially resolved two-color diffusion measurements in human skin applied to transdermal liposome penetration
Brewer J, et al.
The Journal of Investigative Dermatology, 133(5), 1260-1268 (2013)
John A Bogovic et al.
PloS one, 15(12), e0236495-e0236495 (2021-01-01)
The fruit fly Drosophila melanogaster is an important model organism for neuroscience with a wide array of genetic tools that enable the mapping of individual neurons and neural subtypes. Brain templates are essential for comparative biological studies because they enable
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)
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)
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