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Responsive fluorescence probe for detection of Hypochlorous acid in live cells and animals

Spectral Instruments Imaging

Jan 17, 2019

In this work, a new fluorescence probe, PQI, was developed for monitoring of the HOCl level in biological samples. The...

Improved differentiation of Retinal Organoids stem cells derived using rotating-wall vessels

Synthecon

Jan 15, 2019

Pluripotent stem cells can be differentiated into 3D retinal organoids, with major cell types self-patterning into a...

CT‐analyzer plug‐ins: ROI shrink‐wrap and primitive ROI

Bruker Biospin

Jan 7, 2019

The ROI shrink‐wrap gives the possibility to automatically generate a region‐of‐interest by adapting to the shape of...

Cellular stress induces erythrocyte assembly and promotes microangiopathy

Fluxion Biosciences

Dec 19, 2018

Microangiopathy with subsequent organ damage represents a major complication in several diseases. The mechanisms...

Jan 23, 2019

The need for ultra high field magnetic resonance imaging

Bruker Biospin

Dec 17, 2018

MRI  is a noninvasive imaging technology that is known for its superior soft tissue contrast and ability to provide...

Live-cell labeling of endogenous proteins with nanometer precision by transduced nanobodies

Etaluma

Dec 6, 2018

Accurate labeling of endogenous proteins for advanced light microscopy in living cells remains challenging. Nanobodies...

Squaraine fluorophore as a NIR-fluorescent probe for the in vivo detection of diagnostic enzymes

Spectral Instruments Imaging

Nov 19, 2018

An oligo(ethylene glycol)-functionalized squaraine fluorophore has been developed as an NIR-fluorescent probe that can...

Jan 23, 2019

The most advanced software for preclinical imaging research

Bruker Biospin

Nov 7, 2018

Modern imaging laboratories hosting PET/MR instruments profit from the fully integrated common imaging platform...

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Foot-and-mouth deseases virus research using IncuCyte ZOOM

Apr 21, 2016

Probing the molecular interactions within the foot-and-mouth disease virus (FMDV) RNA replication complex has been restricted in part by the lack of suitable reagents. Random insertional mutagenesis has proven an excellent method to reveal domains of proteins essential for virus replication as well as locations that can tolerate small genetic insertions. Such insertion sites can subsequently be adapted by the incorporation of commonly used epitope tags, facilitating their detection with commercially available reagents. In this study, we used random transposon-mediated mutagenesis to produce a library of 15 nt insertions in the FMDV nonstructural polyprotein. Using a replicon-based assay, we isolated multiple replication-competent as well as replication-defective insertions. We adapted the replication-competent insertion sites for the successful incorporation of epitope tags within FMDV non-structural proteins for use in a variety of downstream assays. Additionally, we showed that replication of some of the replication-defective insertion mutants could be rescued by co-transfection of a ‘helper’ replicon, demonstrating a novel use of random mutagenesis to identify intergenomic transcomplementation. Both the epitope tags and replication-defective insertions identified here will be valuable tools for probing interactions within picornavirus replication complexes.

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Related technologies: Real-time, label free cell analysis

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