Results 81 to 90 of about 5,976,385 (321)

A new family of diverse skin peptides from the microhylid frog genus phrynomantis [PDF]

open access: yes, 2020
A wide range of frogs produce skin poisons composed of bioactive peptides for defence against pathogens, parasites and predators. While several frog families have been thoroughly screened for skin-secreted peptides, others, like the Microhylidae, have ...
Ballet, Steven   +7 more
core   +1 more source

Evolutionarily divergent DUF4465 domains have a common vitamin B12‐binding function

open access: yesFEBS Open Bio, EarlyView.
We show that DUF4465 family proteins, widespread across bacteria from gut microbiomes, hydrothermal vents, and soil, share a common vitamin B12‐binding function. These augmented β‐jellyroll proteins bind vitamin B12 via extended loops. Our findings establish sequence‐diverse DUF4465 proteins as a widespread class of B12‐binding proteins, highlighting ...
Charlea Clarke   +4 more
wiley   +1 more source

Common Ancestry Is a Poor Predictor of Competitive Traits in Freshwater Green Algae. [PDF]

open access: yesPLoS ONE, 2015
Phytoplankton species traits have been used to successfully predict the outcome of competition, but these traits are notoriously laborious to measure. If these traits display a phylogenetic signal, phylogenetic distance (PD) can be used as a proxy for ...
Anita Narwani   +6 more
doaj   +1 more source

Phylogenetic Signals in Protein Data

open access: yes, 2021
Structural biology has seen major advances over the past decade. In the area of protein structure prediction we have seen significant increase in accuracy with the discovery of coevolutionary signals in a multiple sequence alignment (MSA). Unlike methods which fold proteins using molecular dynamic (MD) simulations, these coevolutionary methods make use
openaire   +1 more source

Phylogenetic signal and functional categories in Proteobacteria genomes [PDF]

open access: yesBMC Evolutionary Biology, 2007
Abstract Background A comprehensive evolutionary analysis of bacterial genomes implies to identify the hallmark of vertical and non-vertical signals and to discriminate them from the presence of mere phylogenetic noise. In this report we have addressed the impact of factors like the universal distribution of the genes,
Comas, Iñaki   +2 more
openaire   +3 more sources

Phylogenetic and physiological signals in metazoan fossil biomolecules [PDF]

open access: yesScience Advances, 2020
Fossilization yields stable polymers diagnostic of tissue type, biomineralization, and the place of animals in the tree of life.
Jasmina Wiemann   +2 more
openaire   +2 more sources

Evaluation of the Dual Impact of Nanotechnologies on Health and Environment Through Alternative Bridging Models

open access: yesAdvanced Healthcare Materials, EarlyView.
This review explores how alternative invertebrate and small‐vertebrate models advance the evaluation of nanomaterials across medicine and environmental science. By bridging cellular and organismal levels, these models enable integrated assessment of toxicity, biodistribution, and therapeutic performance.
Marie Celine Lefevre   +3 more
wiley   +1 more source

A global test for phylogenetic signal in shifts in flowering time under climate change

open access: yes, 2017
Shifts in the timing of flowering are a conspicuous biological signal of climate change. These shifts have been documented across the globe for diverse communities. Although many species are flowering earlier, others have exhibited no shifts or delays in
Nicole E. Rafferty, P. Nabity
semanticscholar   +1 more source

Gene tree reconciliation: new developments in Bayesian concordance analysis with BUCKy [PDF]

open access: yes, 2010
When phylogenetic trees inferred from different genes are incongruent, several methods are available to reconcile gene trees and extract the shared phylogenetic information from the sequence data. Bayesian Concordance Analysis, implemented in BUCKy, aims
Bret R. Larget   +3 more
core   +1 more source

Metabolism And The Rise Of Fungus Cultivation By Ants [PDF]

open access: yes, 2014
Most ant colonies are comprised of workers that cooperate to harvest resources and feed developing larvae. Around 50 million years ago (MYA), ants of the attine lineage adopted an alternative strategy, harvesting resources used as compost to produce ...
Kaspari, Michael   +5 more
core   +1 more source

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