Cyanine3 maleimide

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Cyanine3 maleimide

标签:Cyanine3, Cy3,Maleimides, Microscopy
货号 规格 价格 货期
11080 1 mg 110.00$ in stock
21080 5 mg 210.00$ in stock
41080 25 mg 410.00$ in stock
51080 50 mg 695.00$ in stock
61080 100 mg 1190.00$ in stock

Thiol mono-reactive Cyanine3 dye. This reagent can be used to attach Cyanine3 fluorophore (an analog of Cy3®) to proteins and peptides containing cysteine residues, as well as to other thiolated molecules (such as thiol-containing oligonucleotides).

Cystines should be reduced with TCEP (tris-carboxyethylphosphine) or other appropriate reductant prior to the labeling.

Labeling with Cyanine3 maleimide is selective, and efficient.

We recommend using water-soluble Sulfo-Cyanine3 maleimide for the labeling of antibodies and other sensitive proteins.

硫醇单反应性 Cyanine3 染料。 该试剂可用于将 Cyanine3 荧光团(Cy3® 的类似物)连接到含有半胱氨酸残基的蛋白质和肽以及其他硫醇化分子(例如含硫醇的寡核苷酸)上。

标记前应使用 TCEP(三羧乙基膦)或其他合适的还原剂还原胱氨酸。

用 Cyanine3 马来酰亚胺标记具有选择性且有效。

我们建议使用水溶性 Sulfo-Cyanine3 马来酰亚胺标记抗体和其他敏感蛋白。

Cy3 absorbance and emission spectra

Cyanine3 maleimide

Cyanine3 maleimide相关产品

Cyanine3 NHS ester

Amine-reactive Cyanine3 dye NHS ester.

胺反应性 Cy3 染料 NHS 酯。

Sulfo-Cyanine3 carboxylic acid

Sulfo-Cyanine3 free unactivated monofunctional carboxylic acid, water-soluble dye.

Sulfo-Cyanine3 不含未活化的单官能羧酸,水溶性染料。

Cyanine3 carboxylic acid

Free Cyanine3 carboxylic acid.

游离Cy3羧酸。

General properties

Appearance: red powder  红色粉末
Molecular weight: 666.56
Molecular formula: C36H43N4O3BF4
Solubility: well soluble in DMSO (0.50 M = 330 g/L), in DMF, dichloromethane, very poorly soluble in water (0.57 mM = 420 mg/L)
Quality control: NMR 1H, HPLC-MS (95%)
Storage conditions: Storage: 24 months after receival at -20°C in the dark. Transportation: at room temperature for up to 3 weeks. Avoid prolonged exposure to light. Desiccate.

储存:收到后 24 个月,在 -20°C 避光保存。 运输:在室温下长达 3 周。 避免长时间暴露在光线下。 干燥。

MSDS: Download
Product specifications

Spectral properties

Excitation/absorption maximum, nm: 555
ε, L⋅mol−1⋅cm−1: 150000
Emission maximum, nm: 570
Fluorescence quantum yield: 0.31
CF260: 0.04
CF280: 0.09

相关文献:

  1. Yang, M.; Zhang, L.; Sun, R.; Zhong, W.; Yang, Y.; Chen, C. Streptococcus pyogenes Cas9 displays biased one-dimensional diffusion on dsDNA to search for a target. bioRxiv, preprint. doi: 10.1101/754564
  2. Budiardjo, S.J.; Deay, J.J.; Calkins, A.L.; Wimalasena, V.K.; Montezano, D.; Biteen, J.S.; Slusky, J.S.G. Colicin E1 Fragments Potentiate Antibiotics by Plugging TolC. bioRxiv, preprint. doi: 10.1101/692251
  3. Mohale, M.; Gundampati, R.K.; Thallapuranam, S.; Heyes, C.D. Site-specific labeling and functional efficiencies of human fibroblast growth Factor-1 with a range of fluorescent dyes in the flexible N-Terminal region and a rigid β-turn region. Analytical Biochemistry, 2022, 640, 114524. doi: 10.1016/j.ab.2021.114524
  4. Bagert, J.D.; Mitchener, M.M.; Patriotis, A.L.; Dul, B.E.; Wojcik, F.; Nacev, B.A.; Feng, L.; Allis, C.D.; Muir, T.W. Oncohistone mutations enhance chromatin remodeling and alter cell fates. Nature Chemical Biology, 2021, 17(4), 403–411. doi: 10.1038/s41589-021-00738-1
Cy® is a trademark of GE Healthcare.