Results 91 to 100 of about 291,831 (295)

Dynamic Cap‐Mediated Substrate Access and Potent Inhibitor Design of Monkeypox Virus I7L Protease

open access: yesAdvanced Science, EarlyView.
The first crystal structure of MPXV I7L protease, revealing its unique dimeric form is resolved. The structures and MD simulations uncovered a dynamic cap region that regulates substrate access to the active site. The structural basis of substrate recognition and the catalytic mechanism are elucidated, which led to the development of a FRET‐based assay
Haixia Su   +12 more
wiley   +1 more source

Methylenetetrahydrofolate Reductase (MTHFR) C677T Polymorphism and Subacute Combined Degeneration: Revealing a Genetic Predisposition

open access: yesFrontiers in Neurology, 2019
Vitamin B12 deficiency is regarded as the prevailing cause of subacute combined degeneration of the spinal cord (SCD). Nevertheless, the genetic predisposition to SCD remains unclear.
Xin Zhang   +7 more
doaj   +1 more source

Post‐Translational Modified Neoantigens in Autoimmune Diseases: Challenges of Immune Tolerance

open access: yesAdvanced Science, EarlyView.
Autoimmune diseases have a high incidence and disability rate. The pathogenesis of autoimmune diseases involves the interaction among genetic factors, environmental factors, and immune disorders. The post‐translational modified neoantigens are the key nodal of these three factors. And these post‐translational modified neoantigens, after being presented
Yue Zhai   +5 more
wiley   +1 more source

The Molecular Basis of Amino Acids Sensing

open access: yesAdvanced Science, EarlyView.
Amino acids are essential as protein building blocks and signaling molecules, enabling metabolic regulation. Cells sense amino acid levels to control protein synthesis, maintain homeostasis, and adapt to nutritional changes. This review explores recent advances in amino acid sensing mechanisms across organisms, highlighting their roles in cellular ...
Cong Jiang   +3 more
wiley   +1 more source

Bacteria Optimize Tumble Bias to Strategically Navigate Surface Constraints

open access: yesAdvanced Science, EarlyView.
The study investigates how Escherichia coli optimizes tumble bias (TB) to navigate surface constraints effectively. Using single‐cell tracking and modeling, it reveals that bacterial surface residence time decreases with increasing TB, stabilizing near the wild‐type mean TB (≈0.25), where surface diffusivity peaks.
Antai Tao   +3 more
wiley   +1 more source

Long Term High‐Salt Diet Induces Cognitive Impairments via Down‐Regulating SHANK1

open access: yesAdvanced Science, EarlyView.
The study identifies a novel mechanistic link between long‐term HS diet and cognitive impairment, wherein PKA/CREB axis inactivation leads to SHANK1 reduction, synaptic damage, and cognitive deficits. Abstract High‐salt (HS) diet is an established risk factor for cognitive impairment, but the underlying mechanisms remain unclear.
Cuiping Guo   +10 more
wiley   +1 more source

The Utilization of l-Methionine, dl-Methionine and Methionine Hydroxy Analogue by the Growing Chick

open access: yesPoultry Science, 1966
Abstract METHIONINE hydroxy analogue, because of its lower cost, is being used as a substitute for supplemental dl -methionine in commercial poultry rations. Nevertheless, its potency as a source of methionine activity for the chick remains a controversial question.
openaire   +2 more sources

Loss of STARD7 Triggers Metabolic Reprogramming and Cell Cycle Arrest in Breast Cancer

open access: yesAdvanced Science, EarlyView.
Breast cancer cells undergo metabolic and transcriptomic reprogramming to support aberrant cell proliferation. Their mitochondria rely on the transfer of phosphatidylcholine from the endoplasmic reticulum to their membranes by STARD7, a candidate upregulated in breast cancer, to be functional.
Ewelina Dondajewska   +18 more
wiley   +1 more source

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