Journal
SMALL METHODS
Volume 5, Issue 5, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/smtd.202001180
Keywords
biomarker sensing platforms; click-chemistry; high-stability; histone-like nucleoid-structuring proteins; protein-deoxyribonucleic acid interactions; tethered particle motion
Funding
- European Union's Horizon 2020 research and innovation programme [796345]
- National Sciences and Engineering Research Council of Canada [RGPIN-2019-06520]
- Marie Curie Actions (MSCA) [796345] Funding Source: Marie Curie Actions (MSCA)
Ask authors/readers for more resources
An ultrastable and highly dense single-molecule assay has been developed for observing protein-DNA interactions, which is stable at high temperatures, compatible with Mg2+, and enables the study of sequence and temperature-dependent effects on DNA binding. This improved assay can be applied to accelerate existing single-molecule biosensing applications.
An ultrastable, highly dense single-molecule assay ideal for observing protein-DNA interactions is demonstrated. Stable click tethered particle motion leverages next generation click-chemistry to achieve an ultrahigh density of surface tethered reporter particles, and has low non-specific interactions, is stable at elevated temperatures to at least 45 degrees C, and is compatible with Mg2+, an important ionic component of many regulatory protein-DNA interactions. Prepared samples remain stable, with little degradation, for >6 months in physiological buffers. These improvements enable the authors to study previously inaccessible sequence and temperature-dependent effects on DNA binding by the bacterial protein, histone-like nucleoid-structuring protein, a global transcriptional regulator found in Escherichia coli. This greatly improved assay can directly be translated to accelerate existing tethered particle-based, single-molecule biosensing applications.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available