Publications by authors named "J A Shepard"

Background: Biotechnologies that utilize microorganisms as production hosts for lipid synthesis will enable an efficient and sustainable solution to produce lipids, decreasing reliance on traditional routes for production (either petrochemical or plant-derived) and supporting a circular bioeconomy. To realize this goal, continuous biomanufacturing processes must be developed to maximize productivity and minimize costs compared to traditional batch fermentation processes.

Results: Here, we utilized biofilms of the marine bacterium, Marinobacter atlanticus, to produce wax esters from succinate (i.

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Phospholipase C gamma 2 (PLCγ2) plays important roles in cell signaling downstream of various membrane receptors. PLCγ2 contains a multidomain inhibitory region critical for its regulation, while it has remained unclear how these domains contribute to PLCγ2 activity modulation. Here we determined three structures of human PLCγ2 in autoinhibited states, which reveal dynamic interactions at the autoinhibition interface, involving the conformational flexibility of the Src homology 3 (SH3) domain in the inhibitory region, and its previously unknown interaction with a carboxyl-terminal helical domain in the core region.

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Article Synopsis
  • Clesrovimab is a new monoclonal antibody designed to prevent respiratory syncytial virus (RSV) disease in infants, tested in a study with 183 healthy infants aged 2 weeks to 8 months.
  • The study found that Clesrovimab was well tolerated, with the most common side effect being irritability, and it demonstrated a long half-life of 44.9 days, along with improved serum neutralizing antibodies over time.
  • Infants who received Clesrovimab had lower rates of RSV-related illnesses compared to those given a placebo, indicating its potential effectiveness for further development in clinical trials.
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Outbreaks in the US of highly pathogenic avian influenza virus (H5N1) in dairy cows have been occurring for months creating new possibilities for direct contact between the virus and humans. Eisfeld examined the pathogenicity and transmissibility of a bovine HPAI H5N1 virus isolated from New Mexico in a series of and assays. They found the virus has a dual human- and avian virus-like receptor-binding specificity as measured in a solid phase glycan binding assay.

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