Ligand-Directed Caging Enables the Control of Endogenous DNA Alkyltransferases Activity with Light inside Live Cells
The control of endogenous proteins activity with light inside live cells is helpful for the high spatiotemporal probing of their dynamic roles. Herein, we report the first small-molecule-ligand-directed caging approach to control the endogenous human O 6 -alkylguanine-DNA alkyltransferases (AGT) activity with light, and the caged AGT is constructed from the native intracellular AGT. The…Read More
A large staghorn stone diagnosed and managed in an asymptomatic patient using the “Kidney Injury Test (Kit)” spot urine assay: A case report
The Kidney Injury Test (KIT) Stone-Score provides an objective measure of stone burden. Unlike urinary supersaturation the KIT Stone-Scores assess underlying stone disease rather than urinary solute composition. We report a case of a 43-year-old woman with no history of nephrolithiasis who underwent an elective, voluntary KIT assay and was diagnosed with a large staghorn…Read More
Comparison of immunomagnetic beads coated with protein A, protein G, or goat anti-mouse immunoglobulins. Applications in enzyme immunoassays and immunomagnetic separations.
Immunomagnetic beads were prepared using either protein A (PA) or protein G (PG) coupled to magnetic beads for binding antibodies at their Fc region. The performance of these beads was compared with commercially available beads coated with goat anti-mouse (G alpha M) immunoglobulins. Both the PA- and PG-beads possessed a higher binding capacity than the…Read More
A hypothesis: Fructosamine-3-Kinase-Related-Protein (FN3KRP) catalyzes deglycation of Maillard intermediates directly downstream from fructosamines
Non-enzymatic glycation (a.k.a. Maillard reaction) is a series of random spontaneous reactions between reducing sugars and amines resulting in the formation of irreversible Advanced Glycation Endproducts (AGE’s). In food chemistry, this process is beneficial by contributing to flavor, aroma, texture and appearance of cooked foods. In vivo, however, Maillard reaction is deleterious because uncontrolled modification…Read More
Analytics of the therapeutic peptide aviptadil by sheathless CE-MS and comparison with nanoRP-HPLC-MS.
Purification and quality control of therapeutic peptides is often performed by one single method, RP-HPLC. As usage of an orthogonal technique is highly advisable for quality assurance, capillary electrophoresis (CE) employing a coated capillary coupled via a sheathless interface to a mass spectrometer was applied in parallel. The basic therapeutic peptide aviptadil served as a…Read More