Results 91 to 100 of about 71,707 (290)

Ubc9‐Mediated SUMOylation of RPL3, an Unappreciated Mechanism against Hepatocyte Senescence by Repressing the DHX9‐p16 Axis

open access: yesAdvanced Science, EarlyView.
Liver aging is characterized by a decline in the expression of the SUMO‐conjugating enzyme Ubc9, resulting in reduced SUMOylation levels in hepatocytes, particularly in the case of ribosomal protein RPL3. Disruption of RPL3 SUMOylation increases its nuclear translocation. Interestingly, ribosome‐free RPL3 facilitates the recruitment of helicase DHX9 to
Hao Xie   +22 more
wiley   +1 more source

Three‐Segment Protein Labeling Using a Highly Efficient and Cysteine‐Less Split Intein Identified with Computational Prediction of Aggregation Properties

open access: yesAngewandte Chemie, EarlyView.
Tandem protein trans‐splicing (PTS) assembles a protein from three segments. Expanding this technology to individually treat cysteines in each segment, for example, for chemical labeling using thiol bioconjugation, the authors identify a second, highly efficient cysteine‐less split intein.
Christoph Humberg   +3 more
wiley   +2 more sources

PIEZO Force Sensing in Vascular Biology: An Explosion of New Knowledge, Concepts and Opportunity

open access: yesAdvanced Science, EarlyView.
Knowledge of the remarkable mechanical force sensing and electrically transducing PIEZO1 and PIEZO2 channels is discussed across vascular biology and its cell types from the embryonic to adult stages in health, disease and old age. How the channels work, relate to other factors and signal for tissue responses to mechanical forces is debated.
David J Beech
wiley   +1 more source

Protein S-sulfenylation is a fleeting molecular switch that regulates non-enzymatic oxidative folding

open access: yesNature Communications, 2016
Protein S-sulfenylation is a posttranslational modification that can act as a sensor of redox oxidative stress. Here the authors show that, following mechanical unfolding, sulfenic acid drives disulfide bond reformation and guides non-enzymatic oxidative
Amy E. M. Beedle   +2 more
doaj   +1 more source

Out with the old: Hsp90 finds amino acid residue more useful than co-chaperone protein

open access: yesMicrobial Cell, 2017
Redundant functions maintained from single to multi-cellular organisms have made Saccharomyces cere-visiae an important model for the analysis of con-served com-plex cellular processes. Yeast has been especially useful in understanding the regulation and
Abbey D. Zuehlke, Leonard Neckers
doaj   +1 more source

Lactate Dehydrogenase C4 Accelerates Triple‐Negative Breast Cancer Progression by Promoting Acetyl‐CoA Acyltransferase 2 Lactylation to Increase Free Fatty Acid Accumulation

open access: yesAdvanced Science, EarlyView.
Diagram of the reprogramming of FA metabolism mediated by LDHC4‐induced ACAA2 activity to promote TNBC progression. LDHC4 drives TNBC progression by enhancing ACAA2‐mediated fatty acid production. The resulting accumulation of FFAs stimulates autophagy and accelerates cell cycle progression, thereby promoting tumor growth.
Zhaolei Cui   +10 more
wiley   +1 more source

CSAP Acts as a Regulator of TTLL-Mediated Microtubule Glutamylation

open access: yesCell Reports, 2018
Summary: Tubulin glutamylation is a reversible posttranslational modification that accumulates on stable microtubules (MTs). While abnormally high levels of this modification lead to a number of disorders such as male sterility, retinal degeneration, and
Guillaume Bompard   +7 more
doaj   +1 more source

Decreased RYR2 Cluster Size and Abnormal SR Ca2+ Release Contribute to Arrhythmogenesis in TMEM43‐Related ARVC

open access: yesAdvanced Science, EarlyView.
The TMEM43 ‐ P386S mutation causes arrhythmogenic right ventricular cardiomyopathy (ARVC) by mislocalizing itself from nuclear envelope (NE) to cytoplasm, disrupting lamin B2 (a novel TMEM43 interactor) localization, NE integrity and chromatin accessibility, causing hyper ‐ phosphorylation and reduced expression/clustering of ryanodine receptor type 2 (
Jiaxi Shen   +23 more
wiley   +1 more source

High-throughput profiling of posttranslational modification enzymes by phage display

open access: yesBioTechniques, 2007
Phage display has been used as a high-throughput platform for identifying proteins or peptides with desired binding or catalytic activities from a complex proteome.
Michelle Yen, Jun Yin
doaj   +1 more source

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