Beyond DNA: New Probes for PAINT Super-resolution Microscopy
Overview
Affiliations
In the last decade, point accumulation for imaging in nanoscale topography (PAINT) has emerged as a versatile tool for single-molecule localization microscopy (SMLM). Currently, DNA-PAINT is the most widely used, in which a transient stochastically binding DNA docking-imaging pair is used to reconstruct specific characteristics of biological or synthetic materials on a single-molecule level. Slowly, the need for PAINT probes that are not dependent on DNA has emerged. These probes can be based on (i) endogenous interactions, (ii) engineered binders, (iii) fusion proteins, or (iv) synthetic molecules and provide complementary applications for SMLM. Therefore, researchers have been expanding the PAINT toolbox with new probes. In this review, we provide an overview of the currently existing probes that go beyond DNA and their applications and challenges.
Multiplexed Lectin-PAINT super-resolution microscopy enables cell glycotyping.
Tholen M, Riera R, Izquierdo-Lozano C, Albertazzi L Commun Biol. 2025; 8(1):267.
PMID: 39979385 PMC: 11842763. DOI: 10.1038/s42003-025-07626-7.
Single-molecule orientation-localization microscopy: Applications and approaches.
Zhang O, Lew M Q Rev Biophys. 2024; 57:e17.
PMID: 39710866 PMC: 11771422. DOI: 10.1017/S0033583524000167.
Zulueta Diaz Y, Arnspang E Front Mol Biosci. 2024; 11:1455153.
PMID: 39290992 PMC: 11405310. DOI: 10.3389/fmolb.2024.1455153.
Self-Blinking Thioflavin T for Super-resolution Imaging.
Yang Q, Hosseini E, Yao P, Putz S, Gelleri M, Bonn M J Phys Chem Lett. 2024; 15(30):7591-7596.
PMID: 39028951 PMC: 11299178. DOI: 10.1021/acs.jpclett.4c00195.
Deep learning-enabled fast DNA-PAINT imaging in cells.
Zhu M, Zhang L, Jin L, Chen Y, Yang H, Ji B Biophys Rep. 2024; 9(4):177-187.
PMID: 38516619 PMC: 10951475. DOI: 10.52601/bpr.2023.230014.