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Product Watch: Sep 1, 2011

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Life Technologies said this week that it is now offering a Protein Thermal Shift application for Applied Biosystems real-time PCR systems.

The application, which PCR Insider first reported on in November (PCR Insider, 11/4/10), enables analysis of protein thermal stability, as well as 384-well-format high-throughput screening of ligand-protein binding for drug discovery; optimization of buffer conditions that promote protein stability for production and crystallization; and the effect of mutations or modifications on a protein's thermal stability, Life Tech said.

The company added that the protein thermal shift assay can improve the success rates of protein purification and crystallization and reduce the cost of drug discovery.

The assay is easy to set up and run, Life Tech said, with the entire workflow typically taking from a half hour to two hours for 96 to 384 samples per plate, depending on the system and run conditions.


Exiqon this week launched a pair of Focus microRNA PCR panels for sensitive and specific quantification of miRNAs in serum/plasma and cancer samples.

The new panels are available in 96- and 384-well formats based on Exiqon's MiRcury LNA Universal RT microRNA PCR system, which allows reliable miRNA profiling with one picogram of total RNA and no pre-amplification.

The Focus panels for serum/plasma are the result of a genome-wide qPCR analysis of more than 2,000 healthy individuals and patients with myriad diseases, Exiqon said. The company identified a total of 175 microRNAs with particular relevance for serum/plasma analysis.

The Focus panels for cancer are based on a genome-wide qPCR analysis of more than 5,000 cancer biopsies from more than 27 different cancer types. This resulted in the identification of 88 miRNAs relevant for any cancer research program, Exiqon said.

The Scan

Two J&J Doses

Johnson & Johnson says two doses of its SARS-CoV-2 vaccine provides increased protection against symptomatic COVID-19, CNN reports.

Pfizer-BioNTech Vaccine Response in Kids

The Pfizer-BioNTech SARS-CoV-2 vaccine in a lower-dose format appears to generate an immune response among children, according to the Washington Post.

Chicken Changes to Prevent Disease

The Guardian writes that researchers are looking at gene editing chickens to help prevent future pandemics.

PNAS Papers on Siberian Dog Ancestry, Insect Reproduction, Hippocampal Neurogenesis

In PNAS this week: ancestry and admixture among Siberian dogs, hormone role in fruit fly reproduction, and more.