Results 171 to 180 of about 494,091 (299)

‘Guide and Prejudice’— How Argonautes recognize targets across domains of life

FEBS Letters, EarlyView.
Argonaute proteins use short nucleic‐acid guides to locate and regulate specific targets across all domains of life. Despite striking diversity—from human gene silencing to bacterial immune defence—all Argonautes share a conserved three‐stage recognition logic: guide‐directed sampling, progressive target pairing with a conformational checkpoint and ...
Jack P. K. Bravo
wiley   +1 more source

Modulation of the rumen microbiome and metabolism in dairy cows by altering the concentrate feeding pattern and the inclusion of <i>Saccharomyces cerevisiae</i> yeast. [PDF]

Front Microbiomes
Snelling TJ, Johnson CA, Warren HE, Taylor-Pickard J, Huntington JA, Sinclair LA.   +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, Jacob J. Whittaker, Dirk J. Slotboom, Albert Guskov   +3 more
wiley   +1 more source

Effects of <i>Acacia cyanophylla</i>-condensed tannin supply on growth performance, carcass characteristics and meat quality of fat-tailed Barbarine lambs studied under grazing conditions or in a feedlot. [PDF]

Arch Anim Breed
Yagoubi Y, Atti N, Smeti S, Abidi J, Mahouachi M.   +4 more
europepmc   +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

Effects of yeast, tannin, and amylolytic enzyme combinations in high-concentrate diets on feed intake, nutrient digestibility, and serum metabolites in Lambs. [PDF]

Trop Anim Health Prod
Vilaça LEG, Schultz EB, de Oliveira MR, Oliveira KA, Siqueira MTS, Ribeiro PHC, Júnior GLM.   +6 more
europepmc   +1 more source

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

Application of Mössbauer Spectroscopy to the Study of Iron Phase States in Products of Magnetization Roasting of Ferruginous Manganese Ore and Concentrate. [PDF]

Materials (Basel)
Baisanov A, Baisanov S, Vorobkalo N, Akuov A, Samuratov Y, Mussina I.   +5 more
europepmc   +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

Assessment of metal removal, biomass activity and RO concentrate treatment in an MBR-RO system

, 2012
Simos Malamis, Prokopis Demetriou, Evina Katsou, Katsou, E, Loizidou, M, Maria Loizidou, Takopoulos, K, Demetriou, P, Malamis, S, Konstantinos Takopoulos   +9 more
core   +1 more source