Results 101 to 110 of about 2,872,047 (257)
A decade of study on the condition of western Cuban coral reefs, with low human impact. [PDF]
PeerJ, 2023 Caballero-Aragón H +5 more
europepmc +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 +3 more
wiley +1 more source
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 +2 more
wiley +1 more source
AnimalsCoexisting with large carnivores in human-dominated European landscapes is a highly relevant and current challenge. Over the last two centuries, the wolf (Canis lupus) population in Europe has experienced a significant decline, primarily due to direct ...
Luca Fardone +4 more
doaj +1 more source
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
Revista Chilena de Historia Natural, 2000 Despite Chile has been one of the pioneering countries in studies of human impact on marine communities, and despite the enormous economic and social significance that the marine environment has for the country, the development of marine conservation ...
MIRIAM FERNANDEZ +7 more
doaj
Valuing Human Impact of Natural Disasters: A Review of Methods. [PDF]
Int J Environ Res Public Health, 2022 Kharb A +5 more
europepmc +1 more source
The impact of schistosomiasis on human nutrition
Parasitology, 1993 SUMMARYThis article reviews studies that examine the negative effects of urinary and intestinal schistosomiasis on the following nutritional parameters in humans: urinary and faecal blood and iron loss, anaemia and haemoglobin levels, proteinuria, child growth and adult protein-energy status, physical fitness, physical activity, appetite and ...
openaire +2 more sources
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 +6 more
wiley +1 more source
Microbial diversity and proxy species for human impact in Italian karst caves. [PDF]
Sci Rep, 2023 Biagioli F +9 more
europepmc +1 more source