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Biotin-Janelia Fluor® Conjugates

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Biotin-Janelia Fluor® Conjugates

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Multifunctional Biotin- and Drug-Janelia Fluor® Conjugates

Overview 

Biotin-Janelia Fluor® conjugates are cell-permeable, fluorescent ligands designed for affinity purification using the HaloTag platform with easy confirmation using imaging. Drug-JF compounds can elicit the translocation of proteins to defined subcellular regions.

Key Benefits

  • Live-Cell Compatible
    Rhodamine scaffolds ensure efficient intracellular labeling.
  • Bright and Fluorogenic
    Enhanced brightness upon HaloTag binding enables high-contrast imaging.
  • Outperforms Commercial Biotin Ligands
    Streptavidin-compatible biotin moiety allows pulldown of HaloTag-tagged compartments with superior capture compared to existing biotin-HaloTag ligands.
  • Allows Targeted Translocation of Proteins
    Drug-JF conjugates facilitate targeted translocation of proteins to different subcellular regions.

Spotlight Ligands

  • JF646-biotin: Bright far-red fluorogenic probe; excellent for mitochondrial capture
  • JF635-biotin: Red-shifted probe with high labeling efficiency
  • JF608-biotin: Balanced option for multi-organelle imaging
  • JF549-biotin: Limited to cell-surface due to poor permeability

Applications

  • Biotin-JF646: Bright far-red fluorogenic probe; excellent for mitochondrial capture
  • Biotin-JF635: Far-red probe with high fluorogenicity and low background
  • Biotin-JF608: An alternative color that is useful in cells and in vivo
  • JQ1-JF635: Drives translocation of BRD4 to different subcellular regions

Reference: bioRxiv 2022; doi: https://doi.org/10.1101/2022.07.02.498544

IP Coverage: US Patent Application 18/390,289

Janelia Tech ID: 2023-001
 

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