The hottest Sequencing Substack posts right now

And their main takeaways
Category
Top Science Topics
ASeq Newsletter • 36 implied HN points • 04 Sep 23
  1. The MiSeq is one of Illumina's longest read sequencers.
  2. Illumina released the MiSeq to compete with Ion Torrent sales.
  3. The MiSeq is the oldest next-gen sequencer in the market, released in 2011.
ASeq Newsletter • 21 implied HN points • 21 Feb 24
  1. The acquisition of Solexa by Illumina involved strategic financial decisions and a combination of technology strengths to create a successful sequencing platform.
  2. There were missed opportunities and challenges due to financial constraints and differing viewpoints among key players in the sequencing technology industry.
  3. The early 2000s marked a period of significant innovation and the emergence of next-generation sequencing technologies, with various companies maneuvering to establish themselves in the market.
ASeq Newsletter • 21 implied HN points • 17 Feb 24
  1. PPMSeq is a duplex sequencing technique that ensures high accuracy reads by reading both forward and reverse strands of a double-stranded sequence.
  2. Ultima's PPMSeq works by amplifying both strands on the same bead and utilizing a tag to identify their presence, with errors causing radical dephasing which is taken care of by downstream software.
  3. Approaches to implementing PPMSeq on Ultima's platform involve reading both strands in both directions simultaneously or keeping the product on beads in the same orientation, each with its own challenges and considerations.
ASeq Newsletter • 29 implied HN points • 14 Sep 23
  1. PacBio's raw accuracy has only slightly improved over 4 generations of instruments.
  2. Fundamental issues, like polymerase kinetics, may be limiting the accuracy of PacBio sequencing.
  3. PacBio has prioritized longer read lengths over accuracy, using cyclic consensus sequencing for improved results.
ASeq Newsletter • 7 implied HN points • 18 Dec 24
  1. PacBio faced challenges in the stock market but still aims to provide high-quality clinical genomic sequencing. They are seen as a strong competitor in the long-read space despite financial struggles.
  2. Oxford Nanopore has been active in raising funds but has dealt with internal issues and departures of significant team members. Profitability remains an elusive goal for both them and PacBio.
  3. New competitors are emerging in the long-read sequencing market, including Roche and BGI, who are exploring nanopore sequencing technology. This could shake up the landscape for current players.
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ASeq Newsletter • 21 implied HN points • 13 Aug 23
  1. Singular Genomics is struggling with low share price and few instrument sales.
  2. Proposed solution is to develop a cheap MiSeq-class sequencer to target the lower end of the market.
  3. By focusing on cost-effective instrument with minimal field support, the company aims to attract small labs and researchers.
ASeq Newsletter • 7 implied HN points • 18 Mar 24
  1. PacBio's market cap drops below $1B, making it potentially attractive for acquisition.
  2. Despite some positives like new instruments and competitive specs, PacBio faces challenges in gaining traction for long-read sequencing in clinical settings.
  3. The majority of PacBio's IP expires in 2029, raising concerns that competitors could enter the market in the near future.
ASeq Newsletter • 7 implied HN points • 12 Mar 24
  1. Protein sequencing can potentially be easier than expected with nanopore technology, allowing for detection of PTMs and obtaining unique fingerprints from proteins.
  2. Proteomics differs from DNA sequencing in that it allows for estimating protein abundance and identifying PTMs in samples, possibly through aligning multiple protein traces.
  3. Challenges in proteomics applications with nanopore platforms include achieving the necessary dynamic range for accurate measurements, which may require advancements in technology.
ASeq Newsletter • 0 implied HN points • 31 Oct 24
  1. Universal Sequencing Technology is gaining attention again after being quiet for a while. People are curious about their progress and what they are focusing on now.
  2. They seem to have shifted their focus from single molecule sequencing to developing various sample preparation kits. This shows they are adapting to changes in the field.
  3. This update may be particularly interesting for those who follow advancements in sequencing technology and want to know about new tools or methods in the industry.
ASeq Newsletter • 0 implied HN points • 09 Jun 25
  1. The PromethION flowcell has an average output of about 84Gb per run. This is important for understanding how much data you can expect.
  2. In comparison, the PacBio flowcell seems to produce higher quality data with around 120-150Gb. This could make it a better option for some users.
  3. Cost per gigabyte is lower for PacBio, making it potentially more affordable when analyzing large amounts of data.
ASeq Newsletter • 0 implied HN points • 28 Nov 25
  1. The old Roswell company appears to be rebooting as SemiConBio with a new CEO (Mike Aicher) and a small team still active, which is surprising given expectations they were out of cash.
  2. Recent successful demonstrations of DNA expansion by companies like Roche could lower the technical bar for solid‑state readout technologies, making such sensors more attractive as alternatives to bilayer nanopores.
  3. SemiConBio’s specific sequencing approach probably isn’t a direct fit for reading expanded DNA, but some of its components or techniques might be repurposed to build a high‑speed, solid‑state readout.