Left-handed DNA for efficient highly multiplexed imaging at single-protein resolution
- Eduard M. Unterauer
- Eva-Maria Schentarra
- Isabelle Pachmayr
- Taisha Tashrin
- Jisoo Kwon
- Sebastian Strauss
- Kristina Jevdokimenko
- Rafal Kowalewski
- Felipe Opazo
- Eugenio F. Fornasiero
- Luciano A. Masullo
- Ralf Jungmann
2025-10-02
Multiplexed super-resolution microscopy enables spatial proteomics at single-protein resolution, but current methods often depend on secondary labels, complicating implementation and limiting throughput. We introduce a streamlined approach that combines speed-optimized DNA-PAINT sequences with their mirror-image analogs (left-handed DNA), enabling rapid and efficient 12-plex imaging. Validated on synthetic and cellular benchmarks, our method maps dense neuronal interactomes in 3D with 15 nm spatial resolution across a 200 × 200 µm 2 field of view.