Results 51 to 60 of about 6,253,377 (301)

Fast Thermocycling in Custom Microfluidic Cartridge for Rapid Single-Molecule Droplet PCR

open access: yesSensors, 2023
The microfluidic droplet polymerase chain reaction (PCR), which enables simultaneous DNA amplification in numerous droplets, has led to the discovery of various applications that were previously deemed unattainable.
Hirokazu Takahara   +2 more
doaj   +1 more source

A flow extension tethered particle motion assay for single-molecule proteolysis [PDF]

open access: yesBiochemistry, 2019
Abstract Regulated proteolysis of signaling proteins under mechanical tension enables cells to communicate with their environment in a variety of developmental and physiologic contexts. The role of force in inducing proteolytic sensitivity has been explored using magnetic tweezers at the single-molecule level with bead-tethered assays ...
Andrew A. Drabek   +2 more
openaire   +3 more sources

Multiplex Single-Molecule DNA Barcoding Using an Oligonucleotide Ligation Assay [PDF]

open access: yesBiophysical Journal, 2018
Detection of specific nucleic acid sequences is invaluable in biological studies such as genetic disease diagnostics and genome profiling. Here we developed a highly sensitive and specific detection method that combines an advanced oligonucleotide ligation assay (OLA) with multicolor single-molecule fluorescence.
Severins, Ivo   +2 more
openaire   +2 more sources

Protocol for effective surface passivation for single-molecule studies of chromatin and topoisomerase II

open access: yesSTAR Protocols
Summary: For single-molecule studies requiring surface anchoring of biomolecules, poorly passivated surfaces can result in alterations of biomolecule structure and function that lead to artifacts.
Tung T. Le   +5 more
doaj   +1 more source

Direct experimental observation of blue-light-induced conformational change and intermolecular interactions of cryptochrome

open access: yesCommunications Biology, 2022
Refined structures, protein-docking analysis and single molecule assays provides insights into light-induced conformational changes in the cryptochrome CraCRY.
Pei Li   +10 more
doaj   +1 more source

A Single‐Molecule Liposome Assay for Membrane Permeabilization

open access: yesAngewandte Chemie
Abstract Cell membrane disruption is associated with numerous diseases and underlies the activity of various antimicrobial agents. The rapid screening of compounds capable of disrupting or permeabilizing biological membranes is essential to the search for new therapeutic drugs.
Bąk, Krzysztof M.   +9 more
openaire   +2 more sources

Single Molecule Fluorescence Assay of Alpha Synuclein Dimerization [PDF]

open access: yesBiophysical Journal, 2015
The aggregation of α-Synuclein (α-Syn) is linked to Parkinson's disease. The mechanism of early aggregation steps and the effect of pathogenic single-point mutations remain elusive. We report here a single molecule fluorescence study of α-Syn dimerization and the effect of pathological single point mutations.
Lv, Zhengjian   +6 more
openaire   +1 more source

Multiplexed Small Molecule Ligand Binding Assays by Affinity Labeling and DNA Sequence Analysis [PDF]

open access: yes, 2021
Small molecule binding assays to target proteins are a core component of drug discovery and development. While a number of assay formats are available, significant drawbacks still remain in cost, sensitivity, and throughput.
Krusemark, Casey J.   +3 more
core   +1 more source

Protocol to quantify mechanical properties of cells using optical tweezers

open access: yesSTAR Protocols
Summary: Mechanical properties of cells determine their ability to deform when subjected to force, which is crucial in many biological processes. Here, we present a protocol to quantify these properties on living cells by applying piconewton-range forces
Wessel S. Rodenburg, Jorine M. Eeftens
doaj   +1 more source

A Toolbox for Site-Specific Labeling of RecQ Helicase With a Single Fluorophore Used in the Single-Molecule Assay

open access: yesFrontiers in Molecular Biosciences, 2020
Fluorescently labeled proteins can improve the detection sensitivity and have been widely used in a variety of biological measurements. In single-molecule assays, site-specific labeling of proteins enables the visualization of molecular interactions ...
Fang-Yuan Teng   +13 more
doaj   +1 more source

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