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Prior to 2015, I had a casual relationship, at best, with targeting RNA. The bulk of my nearly three decades of experience up to that point was with drugging protein targets using a variety of modalities, but principally smallmolecules. Welcome to the RNA world.
A few years ago, at Arrakis Therapeutics, we set out to conquer a strange new territory, drugging RNA structures with smallmolecules. In fact, it was these early pharmaceutical successes that gave us the confidence that we would ultimately succeed in systematically drugging a wide range of RNA structures.
We are moving rapidly toward escape velocity in our RNA expedition at Arrakis. For those of you joining us for the first time, it’s worth a quick look back at why we decided to go all-in on the RNA world, why people thought we were crazy, and why we know we’re not. Our terra firma is small-molecule medicines.
Since our company’s founding in 2015, we have taken the long view and been singularly focused on building an extremely flexible and broadly applicable platform that can develop a host of RNA‑targeted smallmolecules (rSMs) to deliver precision medicines for dozens of targets that have been out of reach for conventional approaches.
Back in 2015, I felt compelled to set out in a new direction in drug discovery. However, in June I happened to attend the Gordon Research Conference on Chemical Biology and High-throughput Chemistry where I saw a session on smallmolecules and RNA. I was in my third year as VP of Chemistry for Celgene. This is a thing?
Arrakis has gone through many significant transitions since its founding in 2015. Or should I say back to retirement, as he was comfortably relaxing at home back in 2016 when Jen Petter lured him back into the fray with the siren call of developing a new class of RNA-targeted small-molecule medicines here at Arrakis.
When doctors sequenced the DNA and RNA found in Alice’s blood and synovial fluid—the liquid that surrounds and lubricates joints—they found abnormally low levels of genes encoding iron-storing proteins and high levels of epidermal growth factor receptor RNA. But DNA alone is not always enough to identify a pathogen.
The researchers first compared the editing efficiency of different versions of IscB when coupled with 'ωRNA,' which guides the enzyme to the right spot on the DNA. A particular variant, named IscB*-ωRNA*, had the highest editing efficiency across multiple different sites in the genome. Read more in Nature Methods.
The researchers first compared the editing efficiency of different versions of IscB when coupled with 'ωRNA,' which guides the enzyme to the right spot on the DNA. A particular variant, named IscB*-ωRNA*, had the highest editing efficiency across multiple different sites in the genome. Read more in Nature Methods.
Their solution was to fuse hairpins, little loops made from RNA or DNA, at various positions along the DNA strand that was being sequenced. In 2015, Oxford Nanopore spun off another company, Metrichor , to provide base-calling algorithms through a web interface.
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