AI Article Synopsis
- Scientists are studying a special protein from a tiny animal called the tardigrade to learn how it can survive tough conditions and use that knowledge for medicine and space research.
- The protein, named Dsup, helps protect DNA from damage caused by harmful things, like radiation.
- Researchers discovered that Dsup has a flexible structure and can sort of "hug" DNA in a loose way, which helps keep it safe.
Article Abstract
Studies of proteins, found in one of the most stress-resistant animals tardigrade Ramazzottius varieornatus, aim to reveal molecular principles of extreme tolerance to various types of stress and developing applications based on them for medicine, biotechnology, pharmacy, and space research. Tardigrade DNA/RNA-binding damage suppressor protein (Dsup) reduces DNA damage caused by reactive oxygen spices (ROS) produced upon irradiation and oxidative stresses in Dsup-expressing transgenic organisms. This work is focused on the determination of structural features of Dsup protein and Dsup-DNA complex, which refines details of protective mechanism. For the first time, intrinsically disordered nature of Dsup protein with highly flexible structure was experimentally proven and characterized by the combination of small angle X-ray scattering (SAXS) technique, circular dichroism spectroscopy, and computational methods. Low resolution models of Dsup protein and an ensemble of conformations were presented. In addition, we have shown that Dsup forms fuzzy complex with DNA.
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Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11447161 | PMC |
| http://dx.doi.org/10.1038/s41598-024-74335-2 | DOI Listing |
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