FastClick™ Digoxigenin (DIG) Alkyne
Ordering information
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Additional ordering information
Telephone | 1-800-990-8053 |
Fax | 1-800-609-2943 |
sales@aatbio.com | |
International | See distributors |
Bulk request | Inquire |
Custom size | Inquire |
Shipping | Standard overnight for United States, inquire for international |
Physical properties
Molecular weight | 870.15 |
Solvent | DMSO |
Storage, safety and handling
H-phrase | H303, H313, H333 |
Hazard symbol | XN |
Intended use | Research Use Only (RUO) |
R-phrase | R20, R21, R22 |
Storage | Freeze (< -15 °C); Minimize light exposure |
Alternative formats
FastClick™ Digoxigenin (DIG) Azide |
Overview | SDSProtocol |
See also: Click Chemistry
Molecular weight 870.15 |
FastClick™ Digoxigenin (DIG) Alkyne contains both the CAG moiety of FastClick (for assisting click efficiency) and DIG hapten (as the detection tag) for developing DIG-based probes. It readily reacts with an azido-containing biomolecule under extremely mild conditions. DIG is a commonly used hapten in biological detections similarly to other popular haptens such as 2,4-Dinitrophenol (DNP) and biotin. DIG conjugates and tags are widely used in fluorescence imaging, fluorescence in situ hybridization (FISH) and other nucleic acid detections. FastClick™ reagents have been developed by the scientists of AAT Bioquest for enhancing the yield and reaction speed of copper-catalyzed azide-alkyne cycloaddition (CuAAC) reaction. They contain a copper-chelating ligand that significantly stabilizes the Cu(I) oxidation state and thus accelerates the click reaction. They do not require the use of an external copper-chelator (such as the common THPTA or BTTAA). The high concentration of copper chelators is known to have a detrimental effect on DNA/RNA, thus causing biocompatibility issues. The introduction of a copper-chelating moiety at the reporter molecule allows for a dramatic raise of the effective Cu(I) concentration at the reaction site and thus accelerates the reaction. Under extremely mild conditions the FastClick™ azides and alkynes react much faster in high yield compared to the corresponding conventional CuAAC reactions. Click chemistry was developed by K. Barry Sharpless as a robust and specific method of ligating two molecules together. Two important characteristics make click chemistry attractive for assembling biomolecules. First, click reactions are bio-orthogonal, thus the click chemistry-functionalized biomolecules would not react with the natural biomolecules that lack a clickable functional group. Second, the reactions proceed with ease under mild conditions, such as at room temperature and in aqueous media.
Calculators
Common stock solution preparation
Table 1. Volume of DMSO needed to reconstitute specific mass of FastClick™ Digoxigenin (DIG) Alkyne to given concentration. Note that volume is only for preparing stock solution. Refer to sample experimental protocol for appropriate experimental/physiological buffers.
0.1 mg | 0.5 mg | 1 mg | 5 mg | 10 mg | |
1 mM | 114.923 µL | 574.614 µL | 1.149 mL | 5.746 mL | 11.492 mL |
5 mM | 22.985 µL | 114.923 µL | 229.845 µL | 1.149 mL | 2.298 mL |
10 mM | 11.492 µL | 57.461 µL | 114.923 µL | 574.614 µL | 1.149 mL |
Molarity calculator
Enter any two values (mass, volume, concentration) to calculate the third.
Mass (Calculate) | Molecular weight | Volume (Calculate) | Concentration (Calculate) | Moles | ||||
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Images
Figure 1. The reaction (Green Bar) of FastClick Cy5 Alkyne with coumarin azide occurs under extremely mild conditions (e.g., [Azide] = 0.02 mM, [Alkyne] = 0.02 mM, [CuSO4] = 0.02 mM, [Sodium Ascorbate] = 5 mM, in 100 mM HEPES) under which the common Cy5 alkyne does not effectively react with the coumarin azide substrate.
References
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