Fig. 16From: A genetically encoded toolkit of functionalized nanobodies against fluorescent proteins for visualizing and manipulating intracellular signallingInducible crosslinking of RFP-tagged and GFP-tagged proteins with GNb-FKBP and RNb-FRB. a Schematic of the nanobody fusions used, with rapamycin shown as a blue sphere. b, c HeLa cells co-expressing GNb-FKBP, RNb-FRB, TOM20-GFP and mCh-Sec61β were imaged using TIRFM. A representative cell (n = 3) is shown before (b) and after (c) treatment with rapamycin (100 nM, 10 min). Scale bars 10 μm (main images) and 2.5 μm (enlargements of boxed areas)Back to article page