Results 51 to 60 of about 292,607 (304)
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
Key steps from the “RNA World” to the “DNA World”
BIO Web of Conferences, 2014 In the « RNA World » hypothesis of the origin of life, RNAs are assumed to be the central macromolecules able to self-replicate, conserve information and catalyze the reactions necessary for a primitive metabolism and many enzymatic cofactors may be ...
Renard B.-L. +3 more
doaj +1 more source
Biology Direct, 2010 Background Understanding the origin of protein synthesis has been notoriously difficult. We have taken as a starting premise Wolf and Koonin's view that "evolution of the translation system is envisaged to occur in a compartmentalized ensemble of ...
Tate Warren, Bernhardt Harold
doaj +1 more source
One-Pot Formation of Pairing Proto-RNA Nucleotides and Their Supramolecular Assemblies
Life, 2023 Most contemporary theories for the chemical origins of life include the prebiotic synthesis of informational polymers, including strong interpretations of the RNA World hypothesis.
Tyler P. Roche +4 more
doaj +1 more source
Primordial RNA Replication and Applications in PCR Technology [PDF]
, 2013 The emergence of self-replication and information transmission in life's origin remains unexplained despite extensive research on the topic. A hypothesis explaining the transition from a simple organic world to a complex RNA world is offered here based ...
Palasek, Stan
core
Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation
FEBS Letters, EarlyView.Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe +3 more
wiley +1 more source
Verification of chemical evolution of RNA under hydrothermal environments on the primitive Earth
BIO Web of Conferences, 2015 The RNA World hypothesis proposes that primitive forms of life used polymers resembling RNA both as catalysts and as carriers of genetic information. It has also been suggested that the origin of life occurred in hydrothermal conditions, but this implies
Kawamura Kunio +4 more
doaj +1 more source
Molecular trade-offs in RNA ligases affected the modular emergence of complex ribozymes at the origin of life [PDF]
Royal Society Open Science, 2017 In the RNA world hypothesis complex, self-replicating ribozymes were essential. For the emergence of an RNA world, less is known about the early processes that accounted for the formation of complex, long catalysts from small passively formed molecules ...
Nisha Dhar +3 more
doaj +1 more source
A Unifying Scenario on the Origin and Evolution of Cellular and Viral Domains [PDF]
, 2009 The cellular theory on the nature of life has been one of the first major advancements in biology. Viruses, however, are the most abundant life forms, and their exclusion from mainstream biology and the Tree of Life (TOL) is a major paradox in biology ...
Claudiu I. Bandea
core +1 more source
The origins and physical roots of life’s dual – metabolic and genetic – nature [PDF]
, 2017 This review paper aims at a better understanding of the origin and physical foundation of life’s dual – metabolic and genetic – nature. First, I give a concise ‘top-down’ survey of the origin of life, i.e., backwards in time from extant DNA/RNA/protein ...
De Tiège, Alexis
core +2 more sources