By using polyphosphate as a phosphate donor, the enzyme efficiently converts inexpensive nucleotide precursors into the active forms required for RNA synthesis. Overall, the method dramatically ...

A single enzyme that can generate all four nucleotide triphosphates, the building blocks of ribonucleic acid (RNA), was identified by researchers at the Institute of Science Tokyo. By using ...

If the household cleaner emits a lemon-like odour, this may be due to a nitrile called citronellyl nitrile. These versatile chemical nitrile groups are also used in the manufacture of active ...

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Inside every cell, a finely tuned metabolic network determines when to build, recycle, or stop producing essential molecules. A central part of this network is folate metabolism, a process that ...

A research team analyzed the regulatory mechanisms of carbohydrate-hydrolyzing enzyme production in Aspergillus aculeatus, a filamentous fungus that produces enzymes with an excellent ability to ...

Enzymes are amazing catalysts. These proteins are made of nothing more than a handful of Earth-abundant elements, and they promote a vast array of reactions, convert chemical energy to physical motion ...

Years of toil in the laboratory have revealed how a marine bacterium makes a potent anti-cancer molecule. The anti-cancer molecule salinosporamide A, also called Marizomb, is in Phase III clinical ...

An ancient biological enzyme known as nickel-iron hydrogenase may play a key role in producing hydrogen for a renewables-based energy economy, researchers said. Careful study of the enzyme has led ...