Effectiveness of the 2023-2024 Omicron XBB.1.5-containing mRNA COVID-19 Vaccine (mRNA-1273.815) in Preventing COVID-19-related Hospitalizations and Medical Encounters Among Adults in the United States.

Background: This study aimed to evaluate the vaccine effectiveness (VE) of mRNA-1273.815, a 2023-2024 Omicron XBB.1.

Calcium Indicators with Fluorescence Lifetime-Based Signal Readout: A Structure-Function Study.

The calcium cation is a crucial signaling molecule involved in numerous cellular pathways. Beyond its role as a messenger or modulator in intracellular cascades, calcium's function in excitable cells, including nerve impulse transmission, is remarkable. The central role of calcium in nervous activity has driven the rapid development of fluorescent techniques for monitoring this cation in living cells.

Pattern-Based Genome Mining Guides Discovery of the Antibiotic Indanopyrrole A from a Marine Streptomycete.

Terrestrial actinomycetes in the genus have long been recognized as prolific producers of small-molecule natural products, including many clinically important antibiotics and cytotoxic agents. Although can also be isolated from marine environments, their potential for natural product biosynthesis remains underexplored. The MAR4 clade of largely marine-derived has been a rich source of novel halogenated natural products of diverse structural classes.

Pattern-based genome mining guides discovery of the antibiotic indanopyrrole A from a marine streptomycetef.

Terrestrial actinomycetes in the genus have long been recognized as prolific producers of small molecule natural products, including many clinically important antibiotics and cytotoxic agents. Although can also be isolated from marine environments, their potential for natural product biosynthesis remains underexplored. The MAR4 clade of largely marine-derived has been a rich source of novel halogenated natural products of diverse structural classes.