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Posts tagged with "Biological News"

  • Biological News

    Free-Floating Mitochondria

    Here’s a weird one for you – one of those papers that, if it holds up, will make us all wonder about just how much we really know about cell biology. It’s from the IRCM at Montpellier, along with another INSERM lab (Gustav Roussey) and a lab at the Jacques Monod Institute at the Univ. Read More
  • Biological News

    Unscrambled Eggs

    This is a rather eerie result. Two researchers at Stanford report that the often-used model system of Xenopus frog eggs have self-organizing properties. Extracts from homogenized eggs had already been known to be more functional than one might have predicted (the paper has a number of references to such studies), but this paper finds that… Read More
  • Biological News

    Bacteria Behind Yet Another Disease

    There are a lot of things in human medicine that make sense broadly, but not in detail. We understand why a thing could happen, but not exactly how it happens. A case in point in alcoholic liver disease. It makes perfect sense that longterm alcohol abuse would damage the liver – it’s the front line… Read More
  • Biological News

    Tight Junctions and Condensates

    All of us in the business talk about the blood-brain barrier, but. . .no, I’m not going to end this sentence with “. . .none of us do anything about it”, because how it should end is “very few of us really stop to think about what it is”. What makes this (and similar structures) Read More
  • Analytical Chemistry

    Balancing Protons

    Catalytically active proteins come in many varieties, and you can classify them in many ways. When you look closely at their structures, one such scheme might be the “solid” ones versus the “delicately balanced” ones. In the first category would be things like carbonic anhydrase or acetylcholinesterase: they do their jobs mo… Read More
  • Analytical Chemistry

    Tiny Proteins

    Here’s another for the “things we just didn’t realize” file. This article is a nice look at “miniproteins” (also known as micropeptides), small but extremely important species that we’ve mostly missed out on due to both our equipment and our own biases in looking at the data. Other recent overviews are here… Read More
  • Biological News

    One Amino Acid Can Be Enough

    You know, we’re all mutants. No, not just those of us reading (or writing!) this web site, I mean all of us. We all have regions of our genome that are highly variable, of course – the sequences (often based on number of repeat markers) that are used in forensic DNA analysis or the mitochondrial… Read More
  • Biological News

    Resisting Protein Degradation: The Cells Fight Back

    With all the work going into targeted protein degradation now (recent review), we’re discovering a lot of things about it that weren’t apparent at first. To pick an obvious one, these things have several steps in their mechanism (binding to the target protein, binding to a ubiquitin ligase to form a ternary complex, ubiquitination of… Read More
  • Biological News

    The 2019 Medicine Nobel

    So we have the first prize of the 2019 Nobel season, Medicine/Physiology for William Kaelin Jr. (Dana-Farber), Peter Ratcliffe (Oxford), and Gregg Semenza (Johns Hopkins), for their work in cellular adaptation to oxygen levels. This was not one of the outcomes that was in the top of the betting range, but it sure wasn’t in the… Read More
  • Biological News

    N-Acetyl Cysteine: A Warning Shot

    I’ve highlighted several articles here over the years that cast doubt (to say the least) on the popular belief that Antioxidants Are Always Good For You. These other views do not seem to have penetrated the public consciousness yet, though, to judge by the way that foods and supplements are advertised. Today brings another example… Read More
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