Robust evaluation of intermolecular FRET using a large Stokes shift fluorophore as a donor

Fluorescence (or Förster) resonance energy transfer (FRET) is a straightforward and sensitive technique to evaluate molecular interactions. However, most of the popular FRET pairs suffer cross-excitation of the acceptor, which could lead to false positives. To overcome this problem, we selected a la...

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Publié dans:BioTechniques. - 1993. - 65(2018), 4 vom: 02. Okt., Seite 211-218
Auteur principal: Santana-Calvo, Carmen (Auteur)
Autres auteurs: Romero, Francisco, López-González, Ignacio, Nishigaki, Takuya
Format: Article en ligne
Langue:English
Publié: 2018
Accès à la collection:BioTechniques
Sujets:Journal Article Research Support, Non-U.S. Gov't binding assay fluorescent protein intermolecular FRET large Stokes shift Fluorescent Dyes Guanine Nucleotide Exchange Factors Luminescent Proteins RAPGEF3 protein, human plus... Cyclic AMP E0399OZS9N
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520 |a Fluorescence (or Förster) resonance energy transfer (FRET) is a straightforward and sensitive technique to evaluate molecular interactions. However, most of the popular FRET pairs suffer cross-excitation of the acceptor, which could lead to false positives. To overcome this problem, we selected a large Stokes shift (LSS) fluorophore as a FRET donor. As a successful example, we employed a new FRET pair mAmetrine (an LSS yellow fluorescence protein)/DY-547 (a cyanine derivative) to substitute CFP/fluorescein that we previously employed to study molecular interactions between cyclic nucleotide-binding domains and cyclic nucleotides. The new FRET pair is practically free of cross-excitation of the acceptor. Namely, a change in the fluorescence spectral shape implies evidence of FRET without other control experiments 
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700 1 |a Nishigaki, Takuya  |e verfasserin  |4 aut 
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