Z-Cy3 Thiol
S-nitrosothiol reactive zwitterionic and pI balancing Cy3 dye (Z-Cy3 dye). This reagent can be used to attach Cy3 fluorophore to proteins and peptides containing S-nitrosothiol modified cysteine residues.
Highlights:
- Highly water-soluble due to cysteic acid group
- Titratable amine group balances protein pI by compensating for the loss of a cysteine side chain upon labeling
- Enhanced detection sensitivity, compared to traditional CyDyes
- Thiol (-SH) functionality
From the laboratories of Edward A. Dratz, PhD, and Paul A. Grieco, PhD, Montana State University.
Part of The Investigator's Annexe program.
S-nitrosothiol reactive zwitterionic and pI balancing Cy3 dye (Z-Cy3 dye). This reagent can be used to attach Cy3 fluorophore to proteins and peptides containing S-nitrosothiol modified cysteine residues.
Highlights:
- Highly water-soluble due to cysteic acid group
- Titratable amine group balances protein pI by compensating for the loss of a cysteine side chain upon labeling
- Enhanced detection sensitivity, compared to traditional CyDyes
- Thiol (-SH) functionality
From the laboratories of Edward A. Dratz, PhD, and Paul A. Grieco, PhD, Montana State University.
Part of The Investigator's Annexe program.
| Product Type: | Small Molecule |
| Name: | Z-Cy3 Thiol |
| Chemical Formula: | C42H59N5O6S2 |
| Molecular Weight: | 794.1 |
| Format: | Dark red powder |
| Purity: | 95+% (NMR, HPLC) |
| Solubility: | Good in water and polar organic solvents |
| Spectral Information: | Excitation maximum: 549nmExtinction at max excitation: 69,000Emission maximum: 564nmFluorescence quantum yield: 0.12 |
| Storage: | -20C. Protect from light. Dessicate. |
| Shipped: | Cold packs |
Application Notes
Suggested amount: 2nmol/50ug protein.
2D DIGE Examples
2D gel of total soluble protein from Sulfolobus solfataricus labeled with Z-CyDyes. Each dye was used to label the protein sample separately. Dye labeled protein samples were combined and run on the same gel. After separation, the gel was scanned with 100 ?m steps using the following laser excitation/band-pass filter combinations: 488/520 nm for Z-Cy2 (left), 532/580 nm for Z-Cy3 (middle), and 633/670 nm for Z-Cy5 (right). Images show the relatively crowded central region of the gel (pI 4?9 and 15?150 kDa), revealing well-defined spots with all three dyes.
Adapted from: Epstein MG, et al. Bioconjug Chem. 2013 Sep 18;24(9):1552-61.
Comparison of Total Spot Number
Total number of spots detected from a gel using Z-Cy2, ZCy3, and Z-Cy5 and from a matched gel using CyDye DIGE Fluor minimal Cy2, Cy3, and Cy5 purchased from GE Healthcare. The protein samples labeled and experimental protocols were the same for both gels and all dyes. Progenesis SameSpots software detects more spots when Z-CyDyes are used in comparison to CyDyes.
Adapted from: Epstein MG, et al. Bioconjug Chem. 2013 Sep 18;24(9):1552-61.
Looking for a different Z-Cy Dye? Check out our other Z-Cy Dyes!
- Epstein MG, Reeves BD, Maaty WS, Fouchard D, Dratz EA, Bothner B, Grieco PA. Enhanced sensitivity employing zwitterionic and pI balancing dyes (Z-CyDyes) optimized for 2D-gel electrophoresis based on side chain modifications of CyDye fluorophores. New tools for use in proteomics and diagnostics. Bioconjug Chem. 2013 Sep 18;24(9):1552-61.
- Reeves BD, Joshi N, Campanello GC, Hilmer JK, Chetia L, Vance JA, Reinschmidt JN, Miller CG, Giedroc DP, Dratz EA, Singel DJ, Grieco PA. Conversion of S-phenylsulfonylcysteine residues to mixed disulfides at pH 4.0: utility in protein thiol blocking and in protein-S-nitrosothiol detection. Org Biomol Chem. 2014 Jul 2.
If you publish research with this product, please let us know so we can cite your paper.
