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DNA Barcodes Could Streamline Search for New Drugs to Combat Cancer

NIH Director's Blog: Drug Discovery

Instead of the black, printed stripes of the Universal Product Codes (UPCs) that we see on everything from package deliveries to clothing tags, they used short, unique snippets of DNA to label cells. DNA barcoding has already empowered single-cell analysis, including for nerve cells in the brain. PRISM consists of two key components.

DNA 52
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Cave Coronavirus in Wuhan Lab Seeded COVID – The Truth Has Always Been Out There, in the Genetics

PLOS: DNA Science

The virus SARS-CoV-2 emerged in Wuhan, home of a premiere research institute that focuses on viruses. Experiments at the Wuhan facility were done at the lowest two of the four standard biosafety levels, which were established at the dawn of recombinant DNA research in the 1970s. An altered virus could have escaped. Coincidence?

Virus 52
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Why I’m Not Worried that ChatGPT Will Replace Me as a Biology Textbook Author

PLOS: DNA Science

As genetics morphed into genomics, artificial intelligence stepped in, layering the combinatorial information of comparative genomics onto DNA sequences. Train an algorithm on the DNA sequences of a known disease-causing gene, then search for identical or highly similar sequences in cells from other individuals to assist diagnosis.

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Models of Life

Codon

mRNA was the intermediate stage between DNA and protein, a dynamic entity that shifted depending on the second-to-second needs of the cell, able to point out if a cell was cancerous or stressed, what kind of cell it was, and so on. Collections of mRNA have been understood as a proxy for cell states for decades.

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Genomic Sequencing Paves the Way for Better Antiviral Treatments

PerkinElmer

From this data, scientists have begun to try to classify different subtypes and create phylogenetic trees of the virus to understand how the viral genome is evolving as it spreads across the globe. The question as to whether these genome variations lead to different strains of the novel virus (i.e. Why and how do viruses evolve?

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Viral Vectors 101: An Introduction to AAV

addgene Blog

Adeno-associated virus (AAV) is a single stranded, Parvoviridae DNA virus, packaged in a non-enveloped icosahedral capsid, that can be used to express genes of interest in cell and animal models. This post was contributed by guest blogger Didem Goz Ayturk with edits and updates from Addgenies Karen Guerin and Susanna Stroik.

Virus 58
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Analytical Testing Considerations for Gene Therapy Products

The Premier Consulting Blog

For gene therapy vectors, this testing encompasses production cell lines, master and working cell banks (MCB, WCB), and virus banks. Depending on the gene therapy vector, microbial systems may be employed to produce vector DNA (such as in adeno associated virus (AAV)), in which case there may be bacterial cell banks and plasmid banks.