Mechanistic insights into the three steps of poly(ADP-ribosylation) reversal

Structural insights into the effects of charge-reversal substitutions at the surface of horseradish peroxidase

Horseradish peroxidase (HRP), has gained significant interests in biotechnology, especially in biosensor field and diagnostic test kits. Hence, its solvent-exposed lysine residues 174, 232, and 241 have been frequently modified with the aim of improving its stability and catalytic efficiency. In this computational study, we investigated the effects of Lys-to-Glu substitutions on HRP structure t...

PolyADP-ribosylation is involved in neurotrophic activity.

PolyADP-ribosylation is a transient posttranslational modification of proteins, mainly catalyzed by poly(ADP-ribose)polymerase-1 (PARP-1). This highly conserved nuclear protein is activated rapidly in response to DNA nick formation and promotes a fast DNA repair. Here, we examine a possible association between polyADP-ribosylation and the activity of neurotrophins and neuroprotective peptides t...

PolyADP-Ribosylation in Postfertilization and Genome Reprogramming: Implications for Carcinogenesis

Mechanistic Insights into Hsp104 Potentiation.

Potentiated variants of Hsp104, a protein disaggregase from yeast, can dissolve protein aggregates connected to neurodegenerative diseases such as Parkinson disease and amyotrophic lateral sclerosis. However, the mechanisms underlying Hsp104 potentiation remain incompletely defined. Here, we establish that 2-3 subunits of the Hsp104 hexamer must bear an A503V potentiating mutation to elicit enh...

Newer Insights into the Prsevention of the Common Cold

Since most colds are self-limiting, symptoms will usually resolve on their own in seven to ten days. For the majority of patients, treatment is symptomatic and targeted at the most bothersome symptoms. Specific nonprescription therapy may relieve cold symptoms but should be used with caution, especially in at-risk patient populations. Patients should monitor for worsening symptoms, and progress...