Results 81 to 90 of about 87,851 (209)

Translophagy—A potential link between autophagy impairment and translational errors

FEBS Letters, EarlyView.
Neurodegenerative diseases are characterised by the accumulation of abnormal proteins and protein aggregates, but their origin often remains unknown. We propose that selective autophagy removes damaged protein‐making machinery, preventing errors during protein synthesis.
Mykola V. Korolchuk, Gailing Ma, Robin Antrobus, Diego Manni, Marco Trevisan‐Herraz, Mustafa Khwaja, Max Brown, Gavin D. Richardson, Masaaki Komatsu, Daniel Erskine, Viktor I. Korolchuk, Tetsushi Kataura   +11 more
wiley   +1 more source

The Potential of Manor Gardens for Natural Habitats Conservation

Journal of Landscape Ecology, 2019
Historical gardens established around manors form an integral part of the European cultural landscape. Recent studies have revealed that manor gardens may serve as local hotspots of biodiversity and provide cultural ecosystem services within urban areas ...
Šantrůčková Markéta, Demková Katarína, Dostálek Jiří, Frantík Tomáš   +3 more
doaj   +1 more source

Structural and biochemical analysis of a B12 superbinder

FEBS Letters, EarlyView.
BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices, Jacob J. Whittaker, Dirk J. Slotboom, Albert Guskov   +3 more
wiley   +1 more source

Indices of human impacts on landscapes: How do they reflect the proportions of natural habitats?

Open Life Sciences
Human activities significantly influence landscapes, altering natural habitats and ecosystem services. This study examines the relationship between human impacts, measured by the hemeroby index and coefficient of anthropogenic impact (CAI´), and the ...
Šantrůčková Markéta, Demková Katarína, Frantík Tomáš, Dostálek Jiří   +3 more
doaj   +1 more source

Structures of mycobacterial 3‐methylcrotonyl‐CoA carboxylase reveal carrier‐domain translocation between catalytic sites

FEBS Letters, EarlyView.
Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav, Bogdan I. Florea, Sebastian Geibel   +2 more
wiley   +1 more source

Land use in the tropical karst - the case of Peruaçu, Januària and Jaiba; SE Brazil. [PDF]

International Journal of Speleology, 1999
The karstic regions of the municipalities of Peruaçu, Januària and Jaiba present a variety of soil uses which are a function of the organization of the karstic relief.
Kohler Heinz Charles, dos Anjos Ferreira Pinto Sergio, de Abreu Joao Francisco   +2 more
doaj  

From junk to function — How weak selection in eukaryotes builds new parts and drives genomic complexity

FEBS Letters, EarlyView.
How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley   +1 more source

The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation

FEBS Letters, EarlyView.
Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge, Vivian Pogenberg, Alexander Baumgart, Bente Siebels, Hartmut Schlüter, Michael Hecht‐Bucher, Aymelt Itzen   +6 more
wiley   +1 more source

Biological Activity of Mountain Soils of the Western Caucasus after Deforestation

Лесной журнал
A study of a set of indicators characterizing the ecological state of forest soils in the mountains of the North-Western Caucasus under broad-leaved and mixed forests has been conducted.
Aslan K. Shkhapatsev, Kamil Sh. Kazeev, Yuliya S. Kozun’, Vasily P. Soldatov, Anastasia N. Fedorenko, Valeria V. Vilkova   +5 more
doaj   +1 more source

Chemical variability of water and sediment over time and along a mountain river subjected to natural and human impact

Knowledge and Management of Aquatic Ecosystems, 2018
We studied the variability of physico-chemical parameters in water, and heavy metal contents in water and sediment over time and along the Carpathian Biała Tarnowska River (southern Poland) and related them to catchment geology, human impact and the ...
Szarek-Gwiazda Ewa, Mazurkiewicz-Boroń Grażyna, Gwiazda Robert, Urban Jan   +3 more
doaj   +1 more source