Abstract The family of antiferromagnetic layered metal hexathiohypo diphosphates, M 2 P S 6 represents a versatile class materials, particularly interesting for fundamental studies on magnetic properties in low dimensional structures, and yet exhibiting great potential broad variety applications including catalysis, energy storage conversion, spintronics. In this work, three representatives 2D ...

A novel fluorescent sensor DCAA-Cu(2+) was developed, showing turn-on fluorescence in NIR region with high selectivity to pyrophosphate anion in 100% aqueous solution.

Nucleoside diphosphokinase activity is present in highly purified preparations of DNA polymerase from Micrococcus luteus and Escherichia coli, and in a partially purified DNA polymerase from avian myeloblastosis virus. The activity is also observed in the protein fragment of molecular weight 76,000 that is produced by subtilisin cleavage of DNA polymerase I from E. coli. The NDP kinase activity...

A Ca2+-requiring catalytic RNA is shown to create 5' phosphate-phosphate linkages with all nucleotides and coenzymes including CoA, nicotinamide adenine dinucleotide phosphate, thiamine phosphate, thiamine pyrophosphate, and flavin mononucleotide. In addition to these small molecules, macromolecules such as RNAs with 5'-diphosphates, and nonnucleotide molecules like Nepsilon-phosphate arginine ...

After infection with bacteriophage T4, Escherichia coli B shows an increase in activity for reduction of adenosine diphosphate to deoxyadenosine diphosphate. An allosteric effector appears to be deoxyguanosine triphosphate, which is needed to reveal the activity in crude extracts of the infected cells. The enzyme system determined by the three phage genes, nrdA, B, and C, is involved in the red...

Apyrases are a recurrent feature of secretomes from numerous species parasitic nematodes. Here we characterise the five apyrases secreted by Heligmosomoides polygyrus, natural parasite mice and widely used laboratory model for intestinal nematode infection. All enzymes closely related to soluble calcium-activated nucleotidases described in variety organisms, distinct CD39 family ecto-nucleotida...