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
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
ARNO Is a Guanine Nucleotide Exchange Factor for ADP-ribosylation Factor 6*
ADP-ribosylation factors (ARFs) constitute a family of small monomeric GTPases. ARFs 1 and 3 function in the recruitment of coat proteins to membranes of the Golgi apparatus, whereas ARF6 is localized to the plasma membrane, where it appears to modulate ...
S. Frank +3 more
semanticscholar +1 more source
A ribose-functionalized NAD+ with unexpected high activity and selectivity for protein poly-ADP-ribosylation. [PDF]
Nicotinamide adenine dinucleotide (NAD+)-dependent ADP-ribosylation plays important roles in physiology and pathophysiology. It has been challenging to study this key type of enzymatic post-translational modification in particular for protein poly-ADP ...
Chen, Jingwen +9 more
core +1 more source
Cool-associated Tyrosine-phosphorylated Protein 1 Is Required for the Anchorage-independent Growth of Cervical Carcinoma Cells by Binding Paxillin and Promoting AKT Activation. [PDF]
Cool-associated tyrosine-phosphorylated protein 1 (Cat-1) is a signaling scaffold as well as an ADP-ribosylation factor-GTPase-activating protein. Although best known for its role in cell migration, we recently showed that the ability of Cat-1 to bind ...
Antonyak, Marc A. +3 more
core +2 more sources
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
Cytohesin 2/ARF6 regulates preadipocyte migration through the activation of ERK1/2 [PDF]
Preadipocyte migration is vital for the development of adipose tissue, which plays a crucial role in lipid metabolism. ADP-ribosylation factor 6 (ARF6) small GTPase, which regulates membrane trafficking, is activated by GTP-exchange factors (GEFs) such ...
Venkat, Kanamarlapudi
core +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
ADP-Ribosylation of NLRP3 by
The inflammasome is a major regulator of inflammation through its activation of procaspase-1, which cleaves prointerleukin-1β (pro-IL-1β) into its mature form.
Santanu Bose +5 more
doaj +1 more source
Gz, a guanine nucleotide-binding protein with unique biochemical properties [PDF]
Cloning of a complementary DNA (cDNA) for Gz alpha, a newly appreciated member of the family of guanine nucleotide-binding regulatory proteins (G proteins), has allowed preparation of specific antisera to identify the protein in tissues and to assay it ...
Casey, Patrick J. +3 more
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