Results 71 to 80 of about 1,342,535 (334)

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

open access: yesFEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva   +10 more
wiley   +1 more source

A Quantitative Framework for Identifying Patterns of Route-Use in Animal Movement Data

open access: yesFrontiers in Ecology and Evolution, 2022
Animal movement along repeatedly used, “habitual” routes could emerge from a variety of cognitive mechanisms, as well as in response to a diverse set of environmental features.
Shauhin E. Alavi   +17 more
doaj   +1 more source

Energy Landscapes Shape Animal Movement Ecology

open access: yesThe American Naturalist, 2013
The metabolic costs of animal movement have been studied extensively under laboratory conditions, although frequently these are a poor approximation of the costs of operating in the natural, heterogeneous environment. Construction of "energy landscapes," which relate animal locality to the cost of transport, can clarify whether, to what extent, and how
Shepard, Emily L. C.   +5 more
openaire   +5 more sources

Structural biology of ferritin nanocages

open access: yesFEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Density‐dependent space use affects interpretation of camera trap detection rates

open access: yesEcology and Evolution, 2019
Camera traps (CTs) are an increasingly popular tool for wildlife survey and monitoring. Estimating relative abundance in unmarked species is often done using detection rate as an index of relative abundance, which assumes that detection rate has a ...
Kate Broadley   +3 more
doaj   +1 more source

Hidden Markov models: Pitfalls and opportunities in ecology

open access: yesMethods in Ecology and Evolution, 2023
Hidden Markov models (HMMs) and their extensions are attractive methods for analysing ecological data where noisy, multivariate measurements are made of a hidden, ecological process, and where this hidden process is represented by a sequence of discrete ...
Richard Glennie   +5 more
doaj   +1 more source

Animal movements in fire‐prone landscapes

open access: yesBiological Reviews, 2018
ABSTRACTMovement is a trait of fundamental importance in ecosystems subject to frequent disturbances, such as fire‐prone ecosystems. Despite this, the role of movement in facilitating responses to fire has received little attention. Herein, we consider how animal movement interacts with fire history to shape species distributions.
Dale G. Nimmo   +26 more
openaire   +4 more sources

C57BL/6 life span study: age-related declines in muscle power production and contractile velocity [PDF]

open access: yes, 2015
Quantification of key outcome measures in animal models of aging is an important step preceding intervention testing. One such measurement, skeletal muscle power generation (force * velocity), is critical for dynamic movement.
Graber, Ted G.   +4 more
core   +2 more sources

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

open access: yesFEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa   +5 more
wiley   +1 more source

Maximum-entropy description of animal movement

open access: yesPhysical Review E, 2015
6 ...
Fleming, Chris H.   +2 more
openaire   +5 more sources

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