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Bio-Rad ddPCR Supermix for Residual DNA Quantification

Bio-Rad has launched droplet digital PCR (ddPCR) supermix for residual DNA quantification. The supermix provides a highly precise and sensitive method for directly measuring host cell DNA (HCD) that contaminates biopharmaceutical products. Inefficiencies in purifying active molecules from host cells can lead to impurities — including DNA — that routinely contaminate the product. Reaction partitioning and end-point analysis makes ddPCR technology less susceptible to PCR inhibition than qPCR. The technology also simplifies HCD quantification by eliminating the need for a standard curve for determining target DNA concentration because it allows direct counting of the number of target molecules. Using ddPCR and the new supermix, researchers can eliminate the DNA extraction step and directly measure residual HCD, said Bio-Rad in a statement.

The Scan

UK Funds to Stay Ahead of Variants

The UK has announced a further £29.3 million to stay on top of SARS-CoV-2 variants, the Guardian reports.

Push for Access

In a letter, researchers in India seek easier access to COVID-19 data, Science reports.

Not as Cold

Late-stage trial results are expected soon for an RNA-based vaccine that could help meet global demand as it does not require very cold storage, the New York Times writes.

Genome Research Papers on Microbes' Effects on Host Transfer RNA, Honeybee Evolution, Single-Cell Histones

In Genome Research this week: influence of microbes on transfer RNA patterns, evolutionary relationships of honeybees, and more.