Results 11 to 20 of about 370,027 (271)

An alternative to the RNA World Hypothesis

open access: gold, 2011
The RNA world hypothesis for the origin of life is widely accepted in spite of the complexity of RNA synthesis. An alternative hypothesis is advanced for the origin and evolution of protein and nucleic acid synthesis. At an early stage synthesis of poly-(
Brian R. Francis
openalex   +3 more sources

Towards an RNA/Peptides World by the Direct RNA Template Mechanism: The Emergence of Membrane-Stabilizing Peptides in RNA-Based Protocells

open access: yesLife, 2023
How functional peptides may have arisen is a significant problem for the scenario of the RNA world. An attractive idea, the direct RNA template (DRT) hypothesis, proposes that RNA molecules can bind amino acids specifically and promote the synthesis of ...
Yu Shi, Chunwu Yu, Wentao Ma
doaj   +2 more sources

A Faster Triphosphorylation Ribozyme. [PDF]

open access: yesPLoS ONE, 2015
In support of the RNA world hypothesis, previous studies identified trimetaphosphate (Tmp) as a plausible energy source for RNA world organisms. In one of these studies, catalytic RNAs (ribozymes) that catalyze the triphosphorylation of RNA 5'-hydroxyl ...
Gregory F Dolan   +2 more
doaj   +7 more sources

RNA Synthesis by in Vitro Selected Ribozymes for Recreating an RNA World

open access: yesLife, 2015
The RNA world hypothesis states that during an early stage of life, RNA molecules functioned as genome and as the only genome-encoded catalyst. This hypothesis is supported by several lines of evidence, one of which is the in vitro selection of catalytic
Lyssa L. Martin   +2 more
doaj   +2 more sources

The RNA World: 4,000,000,050 years old

open access: yesLife, 2015
The RNA World is now some four billion years behind us, but only recently turned 50 as a human hypothesis. [...]
Niles Lehman
doaj   +2 more sources

The RNA-DNA world and the emergence of DNA-encoded heritable traits

open access: yesRNA Biology
The RNA world hypothesis confers a central role to RNA molecules in information encoding and catalysis. Even though evidence in support of this hypothesis has accumulated from both experiments and computational modelling, the transition from an RNA world
Suvam Roy, Supratim Sengupta
doaj   +2 more sources

Origin & influence of autocatalytic reaction networks at the advent of the RNA world

open access: yesRNA Biology
Research on the origin of life investigates the transition from abiotic chemistry to the emergence of biology, with the ‘RNA world hypothesis’ as the leading theory. RNA’s dual role in storage and catalysis suggests its importance in this narrative.
Stephen A. Zorc, Raktim N. Roy
doaj   +2 more sources

How Amino Acids and Peptides Shaped the RNA World

open access: yesLife, 2015
The “RNA world” hypothesis is seen as one of the main contenders for a viable theory on the origin of life. Relatively small RNAs have catalytic power, RNA is everywhere in present-day life, the ribosome is seen as a ribozyme, and rRNA and tRNA are ...
Peter T.S. van der Gulik, Dave Speijer
doaj   +2 more sources

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