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Super-Resolution Imaging Conditions for enhanced Yellow Fluorescent Protein (eYFP) Demonstrated on DNA Origami Nanorulers
Photostability is one of the crucial properties of a fluorophore which strongly influences the quality of single molecule-based super-resolution imaging. Enhanced yellow fluorescent protein (eYFP) is one of the most widely used versions of fluorescent proteins in modern cell biology exhibiting fast...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4571581/ https://www.ncbi.nlm.nih.gov/pubmed/26373229 http://dx.doi.org/10.1038/srep14075 |
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author | Jusuk, Ija Vietz, Carolin Raab, Mario Dammeyer, Thorben Tinnefeld, Philip |
author_facet | Jusuk, Ija Vietz, Carolin Raab, Mario Dammeyer, Thorben Tinnefeld, Philip |
author_sort | Jusuk, Ija |
collection | PubMed |
description | Photostability is one of the crucial properties of a fluorophore which strongly influences the quality of single molecule-based super-resolution imaging. Enhanced yellow fluorescent protein (eYFP) is one of the most widely used versions of fluorescent proteins in modern cell biology exhibiting fast intrinsic blinking and reversible photoactivation by UV light. Here, we developed an assay for studying photostabilization of single eYFP molecules with respect to fast blinking and demonstrated a 6-fold enhanced photostability of single eYFP molecules with a beneficial influence on the blinking kinetics under oxygen removal and addition of aliphatic thiols (dSTORM-buffer). Conjugation to single stranded DNA and immobilization via DNA hybridization on a DNA origami 12 helix bundle in aqueous solution allowed photophyiscal studies of eYFP at the single-molecule level and at close to physiological conditions. The benefit of improved photophysical properties for localization-based super-resolution microscopy is demonstrated and quantitatively characterized by imaging 12 helix bundle DNA origami nanorulers with binding sites at designed distances of 160 and 100 nm and by imaging microtubules in fixed mammalian Vero cells. |
format | Online Article Text |
id | pubmed-4571581 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-45715812015-09-28 Super-Resolution Imaging Conditions for enhanced Yellow Fluorescent Protein (eYFP) Demonstrated on DNA Origami Nanorulers Jusuk, Ija Vietz, Carolin Raab, Mario Dammeyer, Thorben Tinnefeld, Philip Sci Rep Article Photostability is one of the crucial properties of a fluorophore which strongly influences the quality of single molecule-based super-resolution imaging. Enhanced yellow fluorescent protein (eYFP) is one of the most widely used versions of fluorescent proteins in modern cell biology exhibiting fast intrinsic blinking and reversible photoactivation by UV light. Here, we developed an assay for studying photostabilization of single eYFP molecules with respect to fast blinking and demonstrated a 6-fold enhanced photostability of single eYFP molecules with a beneficial influence on the blinking kinetics under oxygen removal and addition of aliphatic thiols (dSTORM-buffer). Conjugation to single stranded DNA and immobilization via DNA hybridization on a DNA origami 12 helix bundle in aqueous solution allowed photophyiscal studies of eYFP at the single-molecule level and at close to physiological conditions. The benefit of improved photophysical properties for localization-based super-resolution microscopy is demonstrated and quantitatively characterized by imaging 12 helix bundle DNA origami nanorulers with binding sites at designed distances of 160 and 100 nm and by imaging microtubules in fixed mammalian Vero cells. Nature Publishing Group 2015-09-16 /pmc/articles/PMC4571581/ /pubmed/26373229 http://dx.doi.org/10.1038/srep14075 Text en Copyright © 2015, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Jusuk, Ija Vietz, Carolin Raab, Mario Dammeyer, Thorben Tinnefeld, Philip Super-Resolution Imaging Conditions for enhanced Yellow Fluorescent Protein (eYFP) Demonstrated on DNA Origami Nanorulers |
title | Super-Resolution Imaging Conditions for enhanced Yellow Fluorescent Protein (eYFP) Demonstrated on DNA Origami Nanorulers |
title_full | Super-Resolution Imaging Conditions for enhanced Yellow Fluorescent Protein (eYFP) Demonstrated on DNA Origami Nanorulers |
title_fullStr | Super-Resolution Imaging Conditions for enhanced Yellow Fluorescent Protein (eYFP) Demonstrated on DNA Origami Nanorulers |
title_full_unstemmed | Super-Resolution Imaging Conditions for enhanced Yellow Fluorescent Protein (eYFP) Demonstrated on DNA Origami Nanorulers |
title_short | Super-Resolution Imaging Conditions for enhanced Yellow Fluorescent Protein (eYFP) Demonstrated on DNA Origami Nanorulers |
title_sort | super-resolution imaging conditions for enhanced yellow fluorescent protein (eyfp) demonstrated on dna origami nanorulers |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4571581/ https://www.ncbi.nlm.nih.gov/pubmed/26373229 http://dx.doi.org/10.1038/srep14075 |
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