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Exchangeable HaloTag Ligands (xHTLs) for multi-modal super-resolution fluorescence microscopy

Kompa, J.; Bruins, J.; Glogger, M.; Wilhelm, J.; Frei, M. S.; Tarnawski, M.; d'Este, E.; Heilemann, M.; Hiblot, J.; Johnsson, K.

2022-06-20 biochemistry
10.1101/2022.06.20.496706 bioRxiv
Show abstract

We introduce exchangeable ligands for fluorescence labeling of HaloTag7 as an alternative to covalently bound probes. The exchangeable ligands open up new possibilities in imaging for a widely used labeling approach, including applications in points accumulation for imaging in nanoscale topography (PAINT), MINFLUX and live-cell, multi-frame stimulated emission depletion (STED) microscopy. We furthermore introduce orthogonal pairs of exchangeable ligands and HaloTags for dual-color PAINT and STED microscopy. Graphical Abstract O_FIG O_LINKSMALLFIG WIDTH=200 HEIGHT=142 SRC="FIGDIR/small/496706v1_ufig1.gif" ALT="Figure 1"> View larger version (63K): org.highwire.dtl.DTLVardef@1e7d689org.highwire.dtl.DTLVardef@1b5db18org.highwire.dtl.DTLVardef@433efaorg.highwire.dtl.DTLVardef@dbbd61_HPS_FORMAT_FIGEXP M_FIG C_FIG

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