Proteins are the infinitely varied chemicals that make cells work, and science has a pretty good idea how they are made. But a critical aspect underlying the machinery of protein manufacture has long ...

The nucleolus is where ribosomal RNA (rRNA) is transcribed, processed, and assembled into the building blocks of ribosomes, the molecular machines that make proteins. Researchers discovered that rRNA ...

More than a decade of research shows that the nucleolus—the largest structure in the eukaryotic nucleus—plays a pivotal role in aging.; Now, a new study analyzing yeast cells suggests both ...