Biology
Scientific paper
Aug 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001esasp.496..177c&link_type=abstract
In: Exo-/astro-biology. Proceedings of the First European Workshop, 21 - 23 May 2001, ESRIN, Frascati, Italy. Eds.: P. Ehrenfreu
Biology
Protein Folding, Life Detector
Scientific paper
The structure of DNA, discovered by Watson and Crick, led to the explanation of one of the fundamental principles of life on Earth, namely, the preservation of the genetic information from one generation to the next. Another principle that followed is summarized in "DNA makes RNA and RNA makes protein". It is now clear that proteins are the true machines of life and the perspective of this work is that the understanding of how proteins works may shed some light on how life arose and how it can be detected. First, the current ideas about protein folding and function are reviewed. A possible inconsistency in present models of protein folding is resolved by resorting to quantum vibrational excited states and the consequences of the presence of the latter to the detection of microscopic living organisms is discussed.
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