Zobrazeno 1 - 10
of 282
pro vyhledávání: '"Leslie E. Orgel"'
Publikováno v:
J Chem Technol Biotechnol
When [32P]-labeled DNA is adsorbed on colloidal gold from a 130 mmol dm−3 solution of KH2PO4, it can subsequently be eluted with cold DNA without undergoing detectable degradation. Similarly, DNA can be incubated in solution in the presence or abse
Autor:
Leslie E Orgel
Publikováno v:
PLoS Biology, Vol 6, Iss 1, p e18 (2008)
Externí odkaz:
https://doaj.org/article/12a66ee59b3a46019da0759c160d41c9
Autor:
Leslie E., Orgel1 (AUTHOR) orgel@salk.edu
Publikováno v:
Critical Reviews in Biochemistry & Molecular Biology. Mar/Apr2004, Vol. 39 Issue 2, p99-123. 25p.
Publikováno v:
Science. 325:73-77
Adaptable DNA Analogs The defining feature of DNA as a genetic blueprint is its capacity for self-replication. In the cell, however, the replication process requires the assistance of multiple elaborate enzymes. How then at the origin of life could D
Publikováno v:
Journal of Molecular Evolution. 64:15-32
Methionine sulfoxide reductases, enzymes that reverse the oxidation of methionine residues, have been described in a wide range of species. The reduction of the diastereoisomers of oxidized methionine is catalyzed by two different monomeric methionin
Publikováno v:
Science. 306:283-286
Almost all discussions of prebiotic chemistry assume that amino acids, nucleotides, and possibly other monomers were first formed on the Earth or brought to it in comets and meteorites, and then condensed nonenzymatically to form oligomeric products.
Autor:
Leslie E. Orgel
Publikováno v:
Origins of Life and Evolution of the Biosphere. 34:361-369
Recent studies support an earlier suggestion that, if adenine was formed prebiotically on the primitive earth, eutectic freezing of hydrogen cyanide solutions is likely to have been important. Here we revisit the suggestion that the synthesis of aden
Autor:
Leslie E. Orgel
Publikováno v:
Origins of Life and Evolution of the Biosphere. 33:211-218
It is now generally accepted that our familiar biological world was preceded by an RNA world in which ribosome-catalyzed, nucleic-acid coded protein synthesis played no part. If the RNA world was the first biological world there is little that one ca
Autor:
Leslie E. Orgel, Aubrey R. Hill
Publikováno v:
Origins of Life and Evolution of the Biosphere. 32:99-102
Adenine is formed in about 18% yield whenHCN tetramer is heated with ammonium formate at 110 °C. Theprebiotic significance of this reaction is discussed.