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The Genetic Roots of Adolescent Scoliosis
Scientists at the RIKEN Center for Integrative Medical Sciences in collaboration with Keio University in Japan have discovered a gene that is linked to susceptibility of Scoliosis.
Diagnostic Test Developed for Enterovirus D68
researchers at Washington University School of Medicine in St. Louis have developed a diagnostic test to quickly detect enterovirus D68 (EV-D68), a respiratory virus that caused unusually severe illness in children last year.
Simple Technology Makes CRISPR Gene Editing Cheaper
University of California, Berkeley, researchers have discovered a much cheaper and easier way to target a hot new gene editing tool, CRISPR-Cas9, to cut or label DNA.
RNAi Screening Trends
Understand current trends and learn which application areas are expected to gain in popularity over the next few years.
HPV Genomes Show Greater Diversity Than Expected in Cancer Patients
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Rapidly Detecting Drug-Resistant HepC
A nested PCR-based assay has been shown to rapidly and accurately detect drug-resistant strains of the hepatitis C virus.
Researchers Seek Water Test for Invasive Species Detection
Detecting invasive lake and river species using just a water sample would be a dream come true for wildlife managers and regulators in the state and University of Maine researchers may soon make this an inexpensive reality.
New Cell Structure Finding Might Lead to Novel Cancer Therapies
University of Warwick scientists in the U.K. say they have discovered a cell structure which could help researchers understand why some cancers develop.
Ebola Assays Compared in Head-to-Head Analysis
A newly published study has attempted to rigorously evaluate a few of the assays recently granted Emergency Use Authorization by the US Food and Drug Administration to test for Ebola Zaire virus.
Profiling DNA Viruses in Arctic Lakes
The Arctic's freshwater lakes contain viral communities composed of DNA viruses from lineages that are largely distinct from those described elsewhere, a new study suggests.
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Sequence-Specific DNA Assay
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Molecular Devices

Measurement of specific DNA sequences can be achieved using the Threshold® System. Biotinylated and fluoresceinated oligonucleotide probes specific to the target sequence to be measured are used with the Immuno Ligand Assay (ILA) kit components. The probes are chosen so that they both anneal to the same strand of the target, adjacent to each other. DNA samples to be measured are digested with an appropriate restriction enzyme to liberate the target sequence on a small DNA fragment. The digested DNA is denatured in the presence of an excess of the biotinylated and fluoresceinated probes. The probes and denatured target are allowed to anneal, generating probe-target hybrids. These probe-target hybrids are captured on the biotinylated Threshold sticks using the ILA capture reagent (streptavidin) which binds to the biotinylated probe. The captured probe-target hybrids are then detected and quantitated using the ILA enzyme reagent (antifluorescein- urease conjugate) which binds to the fluoresceinated probe. This application note is intended as a guide and does not represent a validation of this assay, nor necessarily the optimal performance parameters for all probe and target DNA combinations.




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