title: madSTORM: a superresolution technique for large-scale multiplexing at single-molecule accuracy.
abstract: Investigation of heterogeneous cellular structures using single-molecule localization microscopy has been limited by poorly defined localization accuracy and inadequate multiplexing capacity. Using fluorescent nanodiamonds as fiducial markers, we define and achieve localization precision required for single-molecule accuracy in dSTORM images. Coupled with this advance, our new multiplexing strategy, madSTORM, allows accurate targeting of multiple molecules using sequential binding and elution of fluorescent antibodies. madSTORM is used on an activated T-cell to localize 25 epitopes, 14 of which are on components of the same multimolecular T-cell receptor complex. We obtain an average localization precision of 2.6 nm, alignment error of 2.0 nm, and <0.01% cross-talk. Combining these technical advances affords the ability to move beyond obtaining superresolved structures to defining spatial relationships among constituent molecules within structures. Probing the molecular topology of complex signaling cascades and other heterogeneous networks is feasible with madSTORM.
authors.affiliation: Laboratory of Cellular and Molecular Biology, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892.
authors.forename: Jason
authors.initials: J
authors.lastname: Yi
authors.affiliation: Laboratory of Cellular and Molecular Biology, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892.
authors.forename: Asit
authors.initials: A
authors.lastname: Manna
authors.affiliation: Laboratory of Cellular and Molecular Biology, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892.
authors.forename: Valarie A
authors.initials: VA
authors.lastname: Barr
authors.affiliation: Laboratory of Single Molecule Biophysics, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD 20892.
authors.forename: Jennifer
authors.initials: J
authors.lastname: Hong
authors.affiliation: Laboratory of Single Molecule Biophysics, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD 20892.
authors.forename: Keir C
authors.initials: KC
authors.lastname: Neuman
authors.affiliation: Laboratory of Cellular and Molecular Biology, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892 samelsonl@mail.nih.gov.
authors.forename: Lawrence E
authors.initials: LE
authors.lastname: Samelson
mesh_terms: D005455:Fluorescent Antibody Technique / Q000379:methods; D005456:Fluorescent Dyes / Q000737:chemistry; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D008856:Microscopy, Fluorescence / Q000379:methods*; D011948:Receptors, Antigen, T-Cell / Q000378:metabolism; D013223:Statistics as Topic / Q000379:methods
chemical_list: D005456:Fluorescent Dyes; D011948:Receptors, Antigen, T-Cell