Document Type

Dataset

Publication Date

2018

Abstract

Sequential labeling and imaging in super-resolution fluorescence microscopy allows the imaging of multiple structures in the same cell using a single fluorophore species. In this work, we describe a method based on DNA strand displacement that can be used to quickly and easily perform the labeling and removal of the fluorophores during each sequence. Labeling for a particular structure is achieved by hybridization of site-specific antibody-bound ssDNA with a complimentary dye-labeled strand. After imaging, the dye is removed using toehold-mediated strand displacement, in which an invader strand competes off the dye-labeled strand than can be subsequently washed away. We demonstrate the concept using sequential dSTORM super-resolution for multiplex imaging of subcellular structures.

Comments

Fig2: Data validating rapid kinetics of strand displacement and low residual cross-talk fluorescence after invader treatment.

Fig3: Data containing image stacks from six total rounds of sequential imaging of sub-cellular structures in HeLa cell.

Fig2A-Clathrin.mat (38744 kB)
Fig2A-Tubulin.mat (34259 kB)
Fig2B-Clathrin.h5 (8053132 kB)
Fig2B-Tubulin.h5 (7820612 kB)
Fig2C-Clathrin.h5 (6779574 kB)
Fig2C-Tubulin.h5 (6833279 kB)
Fig3A-Clathrin-Round1.h5 (3404137 kB)
Fig3A-Clathrin-Round2.h5 (3371627 kB)
Fig3A-Clathrin-Round3.h5 (3381532 kB)
Fig3A-Tubulin-Round1.h5 (3452554 kB)
Fig3A-Tubulin-Round2.h5 (3461398 kB)
Fig3A-Tubulin-Round3.h5 (3432711 kB)

DOI

doi:10.25827/cs2a-dh13

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