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Inosine could be a potential route to the first RNA and the origin of life on Earth Harvard University, December 3, 2018, https://phys.org/news/2018-12-inosine-potential-route-rna-life.html The paper is: Seohyun Chris Kim, Derek K. O’Flaherty, Lijun Zhou, Victor S. Lelyveld, and Jack W. Szostak, 2018, Inosine, but none of the 8-oxo-purines, is a plausible component of a primordial version of RNA. PNAS published ahead of print December 3, 2018 https://doi.org/10.1073/pnas.1814367115 Yours, Paul H.
here Norio Kitadai,Shigenori Maruyama: Origins of building blocks of life: A review* Geoscience Frontiers,(9)-2018 Some prior knowledge of organic geochemistry might be helpful,but is not required for understanding this About 5,6 MB * it is what it say on the tin:a reasonably long comprehensive view of the state of the art
Oxytropidoceras posted a topic in Fossil NewsScientists identify protein that may have existed when life began The primordial peptide may have appeared 4 billion years ago Rutgers University, August 30, 2018 https://www.sciencedaily.com/releases/2018/08/180830180101.htm “The Primordial Protein” Could have Emerged Spontaneously on Earth–Scientists Close in on How Life Began, Daily Galaxy https://dailygalaxy.com/2018/08/the-primordial-protein-could-have-emerged-spontaneously-on-earth-scientists-close-in-on-how-life-began/ J. Dongun Kim, Douglas H. Pike, Alexei M. Tyryshkin, G. V. T. Swapna, Hagai Raanan, Gaetano T. Montelione, Vikas Nanda, Paul G. Falkowski. Minimal Heterochiral de Novo Designed 4Fe–4S Binding Peptide Capable of Robust Electron Transfer. Journal of the American Chemical Society, 2018; DOI: 10.1021/jacs.8b07553 https://pubs.acs.org/doi/10.1021/jacs.8b07553 https://www.ncbi.nlm.nih.gov/pubmed/30141918 Yours, Paul H.
Oxytropidoceras posted a topic in Fossil NewsWhy Extraterrestrial Life May Be More Unlikely Than Scientists Thought https://www.eurekalert.org/pub_releases/2018-04/ras-pop040318.php https://www.telegraph.co.uk/news/2018/04/05/alien-life-may-unlikely-previously-thought-according-new-study/ https://www.livescience.com/62248-extraterrestrial-life-phosphorus.html Phil Cigan https://www.researchgate.net/scientific-contributions/2058521845_Phil_Cigan An unrelated, but interesting article is: The Scientific Paper Is Obsolete. Here’s what’s next. James Somer, The Atlantic, April 5, 2018 https://www.theatlantic.com/science/archive/2018/04/the-scientific-paper-is-obsolete/556676/ Yours, Paul H.