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  1. Giant Viruses Are Ancient Living OrganismsA new study of giant viruses supports the idea that viruses are ancient living organisms and not inanimate molecular remnants run amok, as some scientists have argued. The study may reshape the universal family tree, adding a fourth major branch to the three that most scientists agree represent the fundamental domains of life.The researchers used a relatively new method to peer into the distant past. Rather than comparing genetic sequences, which are unstable and change rapidly over time, they looked for evidence of past events in the three-dimensional, structural domains of proteins. These structural motifs, called folds, are relatively stable molecular fossils that – like the fossils of human or animal bones – offer clues to ancient evolutionary events, says Univ. of Illinois crop sciences and Institute for Genomic Biology professor Gustavo Caetano-Anollés, who led the analysis.Read more: http://www.laboratoryequipment.com/news/2012/09/giant-viruses-are-ancient-living-organisms

    Giant Viruses Are Ancient Living Organisms

    A new study of giant viruses supports the idea that viruses are ancient living organisms and not inanimate molecular remnants run amok, as some scientists have argued. The study may reshape the universal family tree, adding a fourth major branch to the three that most scientists agree represent the fundamental domains of life.

    The researchers used a relatively new method to peer into the distant past. Rather than comparing genetic sequences, which are unstable and change rapidly over time, they looked for evidence of past events in the three-dimensional, structural domains of proteins. These structural motifs, called folds, are relatively stable molecular fossils that – like the fossils of human or animal bones – offer clues to ancient evolutionary events, says Univ. of Illinois crop sciences and Institute for Genomic Biology professor Gustavo Caetano-Anollés, who led the analysis.

    Read more: http://www.laboratoryequipment.com/news/2012/09/giant-viruses-are-ancient-living-organisms

  2. 85 Notes
    1. skulls-and-crowns said: [YES GOOD]
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    12. othartryggvassen reblogged this from oldmanyellsatcloud and added:
      hhhhhghghghdf i’m not surprised by this in the least, i’ve always had a feeling as we keep coming up with new info that...
    13. oldmanyellsatcloud reblogged this from laboratoryequipment and added:
      I’d have clarified that with a “may”, but given the depth of the protein folding connections here? It’s a pretty safe...
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