Results 81 to 90 of about 2,456,397 (363)

A stepwise emergence of evolution in the RNA world

open access: yesFEBS Letters, EarlyView.
How did biological evolution emerge from chemical reactions? This perspective proposes a gradual scenario of self‐organization among RNA molecules, where catalytic feedback on random mixtures plays the central role. Short oligomers cross‐ligate, and self‐assembly enables heritable variations. An event of template‐externalization marks the transition to
Philippe Nghe
wiley   +1 more source

The relevance of non-formal Biology Olympiad training for upper secondary school students

open access: yesLUMAT, 2018
Science competitions, such as the International Biology Olympiad, are non-formal education targeted to upper secondary school students with high abilities.
Justus Mutanen, Maija Aksela
doaj   +1 more source

Shared Transcriptional Machinery at Homologous Alleles Leads to Reduced Transcription in Early Drosophila Embryos

open access: yesFrontiers in Cell and Developmental Biology, 2022
The mechanism by which transcriptional machinery is recruited to enhancers and promoters to regulate gene expression is one of the most challenging and extensively studied questions in modern biology.
Hao Deng, Bomyi Lim
doaj   +1 more source

FRET‐MC: A fluorescence melting competition assay for studying G4 structures in vitro

open access: yesBiopolymers, 2020
G‐quadruplexes (G4) play crucial roles in biology, analytical chemistry and nanotechnology. The stability of G4 structures is impacted by the number of G‐quartets, the length and positions of loops, flanking motifs, as well as additional structural ...
Yu Luo, A. Granzhan, D. Verga, J. Mergny
semanticscholar   +1 more source

Female Fighting and Host Competition Among Four Sympatric Species of \u3ci\u3eMelittobia\u3c/i\u3e (Hymenoptera: Eulophidae) [PDF]

open access: yes, 2018
Melittobia is a genus of parasitic wasps well known for high levels of inbreeding and violent male combat. Casual observations of groups of sisters of M.
Deyrup, Leif D, Matthews, Robert W
core   +2 more sources

Cyclic nucleotide signaling as a drug target in retinitis pigmentosa

open access: yesFEBS Letters, EarlyView.
Disruptions in cGMP and cAMP signaling can contribute to retinal dysfunction and photoreceptor loss in retinitis pigmentosa. This perspective examines the mechanisms and evaluates emerging evidence on targeting these pathways as a potential therapeutic strategy to slow or prevent retinal degeneration.
Katri Vainionpää   +2 more
wiley   +1 more source

The forestecology R package for fitting and assessing neighborhood models of the effect of interspecific competition on the growth of trees

open access: yesEcology and Evolution, 2021
Neighborhood competition models are powerful tools to measure the effect of interspecific competition. Statistical methods to ease the application of these models are currently lacking.
Albert Y. Kim   +2 more
doaj   +1 more source

Computational structure‐based drug design: Predicting target flexibility [PDF]

open access: yes, 2018
The role of molecular modeling in drug design has experienced a significant revamp in the last decade. The increase in computational resources and molecular models, along with software developments, is finally introducing a competitive advantage in early
Ding X.   +4 more
core   +2 more sources

The anabolic steroid stanozolol is a potent inhibitor of human MutT homolog 1

open access: yesFEBS Letters, EarlyView.
MutT homolog 1 (MTH1) is a member of the NUDIX superfamily of enzymes and is an anticancer drug target. We show that stanozolol (Stz), an anabolic steroid, is an unexpected nanomolar inhibitor of MTH1. The X‐ray crystal structure of the human MTH1–Stz complex reveals a unique binding scaffold that could be utilized for future inhibitor development ...
Emma Scaletti Hutchinson   +7 more
wiley   +1 more source

ERBIN limits epithelial cell plasticity via suppression of TGF‐β signaling

open access: yesFEBS Letters, EarlyView.
In breast and lung cancer patients, low ERBIN expression correlates with poor clinical outcomes. Here, we show that ERBIN inhibits TGF‐β‐induced epithelial‐to‐mesenchymal transition in NMuMG breast and A549 lung adenocarcinoma cell lines. ERBIN suppresses TGF‐β/SMAD signaling and reduces TGF‐β‐induced ERK phosphorylation.
Chao Li   +3 more
wiley   +1 more source

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