Results 51 to 60 of about 670,128 (291)

Tau acetylation at K331 has limited impact on tau pathology in vivo

FEBS Letters, EarlyView.
We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto, Yukio Matsuba, Mika Takahashi, Takaomi C. Saido   +3 more
wiley   +1 more source

Amino acid uptake in Arabidopsis [PDF]

, 2008
Nitrogen (N) is essential for all living organisms and is considered to be the limiting factor for plant growth in many ecosystems. Although generally believed to rely on mineral N to fulfill their N needs, plants have also been found to access organic N
Svennerstam, Henrik
core  

Age-related changes of muscle and plasma amino acids in healthy children

, 2010
The aim of the study was to explore if changes in muscle and plasma amino acid concentrations developed during growth and differed from levels seen in adults.
Andersson, Kerstin,, Wernerman, Jan,, Hammarqvist, Folke,, Angsten, Gertrud,, Meurling, Staffan,   +4 more
core   +1 more source

Considerations on amino acid patterns in the natural felid diet: a review

Frontiers in Veterinary Science
Amino acids are essential for the growth, development, and reproduction of carnivores. This literature review summarizes the amino acid patterns of different raw diets including whole prey, body tissue and muscle for felids under human care.
Mengmeng Sun, Annelies De Cuyper, Ellen S. Dierenfeld, Geert P. J. Janssens   +3 more
doaj   +1 more source

Calpain small subunit homodimerization is robust and calcium‐independent

FEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy, Trina Dykstra‐MacPherson, Mathias A. Bell, Peter L. Davies, Ruby May A. Sullan   +4 more
wiley   +1 more source

Effects of Dietary L-Glutamine or L-Glutamine Plus L-Glutamic Acid Supplementation Programs on the Performance and Breast Meat Yield Uniformity of 42-d-Old Broilers

Brazilian Journal of Poultry Science, 2015
This study aimed at evaluating four dietary L-Glutamine (L-Gln) or L-Gln plus L-Glutamate (L-Glu) supplementation programs on the performance, breast yield, and uniformity of broilers. A total of 2,112 one-d-old male Cobb 500(r) broilers were distributed
V Ribeiro Jr, LFT Albino, HS Rostagno, MI Hannas, CLN Ribeiro, RA Vieira, WAG de Araújo, GBS Pessoa, RKG Messias, DL da Silva   +9 more
doaj   +1 more source

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

FEBS 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, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

Effect of oxygen tension on the amino acid utilisation of human embryonic stem cells

, 2014
Background/aims: human embryonic stem cells (hESCs) are a potential source of cells for treatment of many degenerative diseases, but in culture have a propensity to spontaneously differentiate, possibly due to suboptimal conditions. Culture at low oxygen
Christensen, David R., David R. Christensen, Calder, Philip C., Houghton, Franchesca D., Philip C. Calder, Franchesca D. Houghton   +5 more
core   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Utilization of Nutrients in a Crystalline Amino Acid Diet as Influenced by Certain Non-Essential Amino Acids

Poultry Science, 1959
Abstract In a previous report, Klain et al. (1959), it was shown that a mixture of crystalline amino acids simulating casein, supported excellent chick growth when the concentration of arginine was increased to 2.06 percent of the diet. Of equal significance was the improved gain-feed ratio that resulted when arginine was adequate.
G.J. Klain, H.M. Scott, B. Connor Johnson   +2 more
openaire   +1 more source