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Biological Activity for DFHO
DFHO is a mimic of red fluorescent protein (RFP) fluorophore for imaging RNA in living cells. DFHO fluorescence is activated by binding to Corn aptamer (Kd = 70 nM) or Squash aptamer (Kd = 54 nM). Excitation/emission maxima (λ) = 505/545 nm; extinction coefficient = 29000 M-1 cm-1.
Technical Data for DFHO
|Storage||Store at -20°C|
The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.
Tocris products are intended for laboratory research use only, unless stated otherwise.
Solubility Data for DFHO
|Solvent||Max Conc. mg/mL||Max Conc. mM|
Preparing Stock Solutions for DFHO
The following data is based on the product molecular weight 281.22. Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.
|Concentration / Solvent Volume / Mass||1 mg||5 mg||10 mg|
|1 mM||3.56 mL||17.78 mL||35.56 mL|
|5 mM||0.71 mL||3.56 mL||7.11 mL|
|10 mM||0.36 mL||1.78 mL||3.56 mL|
|50 mM||0.07 mL||0.36 mL||0.71 mL|
References for DFHO
References are publications that support the biological activity of the product.
Song et al (2017) Imaging RNA polymerase III transcription using a photostable RNA-fluorophore complex. Nat.Chem.Biol. 13 1187 PMID: 28945233
Warner et al (2017) A homodimer interface without base pairs in an RNA mimic of red fluorescent protein. Nat.Chem.Biol. 13 1195 PMID: 28945234
Dey et al (2022) Repurposing an adenine riboswitch into a fluorogenic imaging and sensing tag. Nat.Chem.Biol. 18 180 PMID: 34937909
Truong et al (2022) The fluorescent aptamer Squash extensively repurposes the adenine riboswitch fold. Nat.Chem.Biol. 18 191 PMID: 34937911
If you know of a relevant reference for DFHO, please let us know.
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Citations for DFHO
Citations are publications that use Tocris products.
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Literature in this Area
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Fluorescent Probes and Dyes Research Product Guide
This product guide provides a background to the use of Fluorescent Probes and Dyes, as well as a comprehensive list of our
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