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Broad-MIT Seminars in Chemical Biology: Phil Holliger

Broad Institute

Although this ancestral replicase appears to have been lost, key aspects of RNA-catalyzed RNA replication can be studied by proxy with the use of modern RNA enzymes (ribozymes) generated by in vitro evolution. However, none of these RPRs was capable of self-replication.

RNA 52
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A Protein Printer

Codon

All cells make proteins in two steps: DNA is transcribed into messenger RNA, which is then translated into protein. It is the untouchable foundation of molecular biology. The ribosome is a molecular printer that threads ‘beads’ onto a protein string. This is simple. And we want to subvert this.

RNA 71
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Johns Hopkins Researchers Identify CRISPR Dimmer

The Pharma Data

In the paper, researchers from Johns Hopkins University and elsewhere found a natural long-form transactivating CRISPR RNA (tracr-L) in Streptococcus pyogenes that functions to downregulate its endogenous CRISPR-Cas9 system. But altering the tracr-L with genetic engineering to make it function more like a guide RNA increased CRISPR-Cas9 cuts.

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A Protein Printer

Codon

All cells make proteins in two steps: DNA is transcribed into messenger RNA, which is then translated into protein. It is the untouchable foundation of molecular biology. The ribosome is a molecular printer that threads ‘beads’ onto a protein string. This is simple. And we want to subvert this.

RNA 52
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Enhancing gene therapy with Circio

Drug Target Review

What are the key findings of Circio’s in vivo proof-of-concept for its circVec circular RNA platform technology compared to conventional mRNA-based expression with DNA vectors? Circular RNA (circRNA) has two major advantages versus mRNA in a vector-expression context.

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Breaking the Speed Limit on Cell Division

Codon

Kamal Nahas highlights the biological limits on cell division speed and explores how we might engineer cells to grow faster. coli to clone DNA, engineering this microbe to divide more quickly would greatly accelerate research. Proteins are colored blue and RNA molecules are colored orange and yellow.

DNA 80
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Women in Stem with Joanne Kanaan

Drug Target Review

When choosing my bachelor’s degree, the choice was between pursuing a career in biology or in computer science. Biology won that battle, and I pursued a bachelor’s and master’s degree in biochemistry and molecular biology. I had my first scientific encyclopaedia around the age of seven.