Results 81 to 90 of about 836,536 (329)
tRNA Core Hypothesis for the Transition from the RNA World to the Ribonucleoprotein World
Life, 2016 Herein we present the tRNA core hypothesis, which emphasizes the central role of tRNAs molecules in the origin and evolution of fundamental biological processes.
Savio T. de Farias +2 more
doaj +1 more source
Tag mechanism as a strategy for the RNA replicase to resist parasites in the RNA world. [PDF]
PLoS ONE, 2017 The idea that life may have started with an "RNA world" is attractive. Wherein, a crucial event (perhaps at the very beginning of the scenario) should have been the emergence of a ribozyme that catalyzes its own replication, i.e., an RNA replicase ...
Sanmao Wu +6 more
doaj +1 more source
FEBS Letters, EarlyView.This perspective highlights emerging insights into how the circadian transcription factor CLOCK:BMAL1 regulates chromatin architecture, cooperates with other transcription factors, and coordinates enhancer dynamics. We propose an updated framework for how circadian transcription factors operate within dynamic and multifactorial chromatin landscapes ...
Xinyu Y. Nie, Jerome S. Menet
wiley +1 more source
Twenty years of "Lipid World": a fertile partnership with David Deamer [PDF]
, 2019 "The Lipid World" was published in 2001, stemming from a highly effective collaboration with David Deamer during a sabbatical year 20 years ago at the Weizmann Institute of Science in Israel.
Kahana, Amit +2 more
core +1 more source
How Amino Acids and Peptides Shaped the RNA World
Life, 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 +1 more source
Real‐time assay of ribonucleotide reductase activity with a fluorescent RNA aptamer
FEBS Letters, EarlyView.Ribonucleotide reductases (RNR) synthesize DNA building blocks de novo, making them crucial in DNA replication and drug targeting. FLARE introduces the first single‐tube real‐time coupled RNR assay, which enables isothermal tracking of RNR activity at nanomolar enzyme levels and allows the reconstruction of allosteric regulatory patterns and rapid ...
Jacopo De Capitani +4 more
wiley +1 more source
The RNA world: hypotheses, facts and experimental results. [PDF]
, 2005 A biochemical world that would have existed before the contemporary DNA-RNA-Protein world, and baptized in 1986 "The RNA World" by Walter Gilbert, such a world had already been proposed during the preceding decades by Carl Woese, Francis Crick and Leslie
Haenni, Anne-Lise +1 more
core +1 more source
Viroids: Survivors from the RNA World? [PDF]
, 2014 Because RNA can be a carrier of genetic information and a biocatalyst, there is a consensus that it emerged before DNA and proteins, which eventually assumed these roles and relegated RNA to intermediate functions.
Flores, Ricardo +3 more
core +1 more source
Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing
FEBS Letters, EarlyView.Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley +1 more source
RNA interference: It's a small RNA world [PDF]
Current Biology, 2001 Short RNAs regulate gene expression in many species. Some are generated from any double-stranded RNA and degrade complementary RNAs; others are encoded by genes and repress specific mRNAs. Both, it turns out, are processed and handled by similar proteins. These pathways offer a glimpse into a world of small RNAs.
openaire +2 more sources