Results 81 to 90 of about 254,425 (304)

Deep Learning‐Driven Discovery and Engineering of an Efficient PETase for Depolymerization and Detoxification of PET Microplastics Under Physiological Conditions

open access: yesAdvanced Science, EarlyView.
A deep learning–driven pipeline mining 246 million protein sequences uncovers AhPETase, an evolutionarily distinct PET hydrolase. Engineered variant AhPETaseM1 degrades post‐consumer PET microplastics under physiological conditions and reverses microplasticinduced cytotoxicity in human lung and colon cells, establishing enzymatic microplastic ...
Yuxuan Wang   +9 more
wiley   +1 more source

Drought Stress Mediated Changes in Food Crops: Mechanisms and Remediation Strategies

open access: yesAdvanced Science, EarlyView.
This work presents a multi‐scale framework for flavonoid‐mediated drought tolerance in staple food crops, integrating ROS redox regulation, antioxidant defense, rhizosphere microbial interactions, and sustainable agronomic practices. This interdisciplinary model provides core insights to develop climate‐resilient cropping systems and enhance global ...
Xiaoyi Duan   +5 more
wiley   +1 more source

Phenylalanine-stimulated secretion of cholecystokinin is calcium dependent

open access: yes, 1995
The secretion of cholecystokinin was examined in STC-1 cells, an intestinal cholecystokinin (CCK)-secreting cell line. Exposure to the amino acid L-phenylalanine increased release of CCK by 135%, 180%, and 251% of control levels after 15-min treatments ...
H. Wong   +10 more
core   +1 more source

Herbivory‐Induced Stomatal Opening Triggers the Dispersal of an Invasive Insect Herbivore

open access: yesAdvanced Science, EarlyView.
The invasive leafminer Phthorimaea absoluta uniquely manipulates plant defenses by inducing stomatal opening in tomato. This response, mediated by the stomatal regulator IQM1, enhances the release of the repellent volatile benzaldehyde. This volatile triggers the dispersal of adult moths, facilitates colonization of new hosts, and leads to rapid ...
Limin Chen   +10 more
wiley   +1 more source

Leg phenylalanine and leucine kinetics.

open access: yes, 2015
Values are expressed as means ± SEM. Phenylalanine and leucine kinetics (ηmol·min-1·100 mL leg volume-1) expressed as (total) leg Ra, leg Rd, transport into (FM,A) and from the muscle (FV,M), a–v shunting (FV,A), release from proteolysis (FM,0 ...
Astrid M. Horstman (824503)   +9 more
core   +1 more source

The Mitogen‐Activated Protein Kinase GhNTF3 Modulates the Arbuscular Mycorrhizal Symbiosis‐Immunity Trade‐Off in Cotton by Regulating Salicylic Acid Biosynthesis

open access: yesAdvanced Science, EarlyView.
AM symbiosis induces GhWAK13 to promote fungal colonization. GhNTF3 negatively regulates symbiosis by promoting SA biosynthesis. GhWAK13 sequesters GhNTF3 at the membrane, limiting its nuclear translocation and relieving SA‐mediated suppression. Under Verticillium stress, GhNTF3 enters the nucleus and interacts with GhJAZ6 to activate SA signaling ...
Shuangjie Jia   +10 more
wiley   +1 more source

METABOLISM OF PHENYLPROPANOID COMPOUNDS IN SALVIA: I. BIOSYNTHESIS OF PHENYLALANINE AND TYROSINE

open access: yes, 1959
C14-Labelled shikimic acid, L-phenylalanine, D-phenylalanine, L-tyrosine, and cinnamic acid were fed separately to leafy cuttings of salvia. After a metabolic period of 24 hours the free and bound phenylalanine, tyrosine, and glutamic acid were isolated ...
A. C. Neish, D. R. McCalla
core   +1 more source

Highly‐Time‐Resolved Measurements of Tryptophan's Distribution and Homeostatic Regulation in Live, Intact Animals

open access: yesAdvanced Science, EarlyView.
Using a novel, aptamer‐based biosensor, here we have performed 20‐s‐resolved, in situ measurements of plasma‐free tryptophan in the jugular veins of live rats (blue). This unprecedented time‐resolution provides insights into the regulation of tryptophan metabolism in live, intact animals.
Yuyang Wu   +7 more
wiley   +1 more source

Effects of Ingestion of Excess Amounts of Phenylalanine on Phenylalanine Metabolism

open access: yesThe Japanese Journal of Nutrition and Dietetics, 1973
The effects of nutritional and hormonal treatments on the activities of rat liver phenylalanine hydroxylase (Phe H) were studied. When a non-protein diet was substituted for the high protein diet, Phe H activities fell rapidly and remained constant from Day 7, whereas when rats were starved for 10 days, Phe H activities were slightly decreased. In case
openaire   +3 more sources

SIRT7‐Mediated H2BK120 Succinylation Drives Aberrant Mitophagy in Sepsis‐Associated Cognitive Dysfunction

open access: yesAdvanced Science, EarlyView.
Sepsis triggers hippocampal SIRT7 loss, promoting histone H2B succinylation and activation of the PD‐1/PD‐L1–PINK1 axis. This metabolic‐epigenetic cascade drives aberrant mitophagy and neuronal injury, ultimately causing cognitive deficits. Targeting SIRT7‐dependent succinylation offers a potential strategy to protect brain function during sepsis ...
Na Meng   +12 more
wiley   +1 more source

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