Results 61 to 70 of about 40,918 (202)
A new method to identify proteins involved in the uptake and intracellular trafficking of nanoparticles is presented. After nanoparticle uptake, cells are lysed and the organelles with nanoparticles are purified using fluorescence assisted cell sorting. Next, their composition is determined by proteomic analysis.
Hector Garcia Romeu, Anna Salvati
wiley +1 more source
Abstract Background and Purpose Lactate, historically viewed as a metabolic by‐product, has emerged as a signalling molecule via the G protein–coupled receptor Hydroxycarboxylic Acid Receptor 1 (HCAR1). The receptor is primarily expressed in adipocytes but also found in various other tissues.
Simon Lind +6 more
wiley +1 more source
Integration of epigenetics into ecotoxicology: insights and fundamental research needs
ABSTRACT Epigenetics refers to heritable changes in genome function that occur without direct alterations to the DNA sequence. A multitude of environmental contaminants can influence the epigenetic marks of a genome. Changes of epigenetic marks including DNA methylation, histone modifications, and non‐coding RNAs can induce alterations at the gene ...
Albano Pinto +3 more
wiley +1 more source
Intracellular Mono-ADP-Ribosylation in Signaling and Disease
A key process in the regulation of protein activities and thus cellular signaling pathways is the modification of proteins by post-translational mechanisms.
Mareike Bütepage +3 more
doaj +1 more source
Transglutaminase‐mediated cytokeratin modifications implicated in bile‐acid‐induced hepatocyte death
Cholestasis and bile‐acid exposure enhance expression and activity of protein crosslinking enzymes TG1 and TG2 in hepatocytes. Substrate proteins were identified by mass spectrometry using biotin‐labeled peptides (pepK5/pepT26) or amine donor (biotinylated pentylamine; BPA). Crosslinking‐induced aggregation and fragmentation of keratin 18 and 8 (K18/K8)
Hideki Tatsukawa +4 more
wiley +1 more source
The nucleosome-remodeling ATPase ISWI is regulated by poly-ADP-ribosylation.
ATP-dependent nucleosome-remodeling enzymes and covalent modifiers of chromatin set the functional state of chromatin. However, how these enzymatic activities are coordinated in the nucleus is largely unknown.
Anna Sala +8 more
doaj +1 more source
Fine-tuning of Smad protein function by poly(ADP-ribose) polymerases and poly(ADP-ribose) glycohydrolase during transforming growth factor β signaling. [PDF]
Initiation, amplitude, duration and termination of transforming growth factor β (TGFβ) signaling via Smad proteins is regulated by post-translational modifications, including phosphorylation, ubiquitination and acetylation.
Markus Dahl +11 more
doaj +1 more source
Automodification of N‐terminal serine residues facilitates PARP2 release from DNA
PARP2 is involved in detecting DNA damage and its N‐terminal role is largely unknown. Based on biochemical and biophysical data, our findings suggest that in the presence of HPF1, N‐terminal serine 8 and 73 are enriched in auto‐ADP‐ribosylation. Our results provide insight into the mechanistic role of PARP2 N‐terminus in the PARylation‐dependent ...
Saurabh Singh Dhakar +6 more
wiley +1 more source
Here, the authors show that histone serine-ADP-ribosylation is decreased in Alzheimer’s disease brains and increased tyrosine levels deplete tyrosyl-tRNA synthetase levels and cause neuronal damage.
Megha Jhanji +9 more
doaj +1 more source
Summary The vesicle trafficking system enables multidirectional cargo fluxes between endomembrane compartments. However, vesicle trafficking plays dual roles during pathogen infections. In plants, it mediates autophagic immune responses but can also be hijacked by pathogens to facilitate successful infections.
Pepe Cana‐Quijada +9 more
wiley +1 more source

