Results 91 to 100 of about 63,770 (296)

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

Evaluation of approaches to control of Maedi-Visna disease of sheep using a Markov chain simulation model for a range of typical British Flocks [PDF]

An epidemiological model is described that closely mimicked results of a published serological study of natural transmission of Maedi-Visna virus in a low ground flock of sheep.
Stott, Alistair W., Milne, Catherine E., Gunn, George J.   +2 more
core  

Eradication of scrapie with selective breeding: are we nearly there? [PDF]

, 2010
Background Following EU decision 2003/100/EC Member States have recently implemented sheep breeding programmes to reduce the prevalence of sheep with TSE susceptible prion genotypes.
Bossers, A., Fred G van Zijderveld, Melchior, M.B., Bossers Alex, Windig, J.J., Davidse, A., Melchior Marielle B, Alex Bossers, Thomas J Hagenaars, Jack J Windig, Windig Jack J, Aart Davidse, Hagenaars, T.H.J., van Zijderveld, F.G., Marielle B Melchior, Zijderveld, F.G., van, Hagenaars Thomas J, Davidse Aart, van Zijderveld Fred G   +18 more
core   +1 more source

Whitefly-transmitted disease complex of the Desert Southwest

California Agriculture, 1982
Crop losses caused by whitefly-transmitted agents could change the agriculture of the desert.
J Duffus, R Flock
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

Longitudinal survey investigating vectors and reservoirs for Campylobacter colonization of chickens on a New Zealand broiler poultry farm

Applied and Environmental Microbiology
This longitudinal survey followed the life cycle of a New Zealand broiler flock to investigate sources of flock colonization by Campylobacter. Samples were collected at frequent intervals from potential Campylobacter reservoirs and sources, transmission ...
Joanne M. Kingsbury, Nigel French, Anne Midwinter, Rebecca Lucas, Maree Callander, Cody P. Hird, Samantha Smith, Kerry Mulqueen, Roy Biggs, Patrick J. Biggs   +9 more
doaj   +1 more source

L‐aspartate oxidase provides new insights into fumarate reduction in anaerobic darkness in Synechocystis sp. PCC6803

FEBS Letters, EarlyView.
Synechocystis strains deficient in succinate dehydrogenase (SDH) secrete more succinate than the WT under dark anaerobic conditions, supporting that SDH then primarily acts as SDH, not as a fumarate reductase. L‐aspartate oxidase (Laspo) from Synechocystis is functional under anaerobic conditions, reducing fumarate to succinate.
Kateryna Kukil, Jeffrey A. Hawkes, Cecilia Blikstad, Pia Lindberg   +3 more
wiley   +1 more source

Le projet européen Flock-Reprod

, 2014
National ...
Pellicer-Rubio, Maria-Teresa, Freret, Sandrine, Boissard, Karine, Tuauden, Mathilde, Fatet, Alice   +4 more
core   +1 more source

Stability and Vulnerability of Bird Flocking Behaviour: A Mathematical Analysis

Hayati Journal of Biosciences, 2019
Given a large number of birds in the flock, we mathematically investigate the mechanism the birds move in a collective behavior. We assume that each bird is able to know its position and velocity of other birds within a radius of communication.
Bayu Erfianto, Intan Muchtadi-Alamsyah
doaj   +1 more source

Leucine‐rich glioma inactivated 1 (LGI1) is a ganglioside‐binding protein

FEBS Letters, EarlyView.
Neuronal hyperexcitability associated with a decrease/absence of the extracellular protein LGI1 has been suggested to be primarily due to the downregulation of Kv1 channel expression. The molecular mechanisms underlying this decrease have not yet been elucidated.
Kévin Debreux, Christian Lévêque, Fodil Azzaz, Marion Sangiardi, Sarosh R Irani, Michael Seagar, Jacques Fantini, Oussama El Far   +7 more
wiley   +1 more source