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bioRxivBiochemistryPreprint

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

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

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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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