Early small-molecule indicators for intracellular calcium led to the discovery of ... impossible to visualize experimentally. The crystal structure of the hairpin ribozyme–vanadate complex ...

New research shows that a network of subcellular structures similar to those responsible for propagating molecular signals ...

You’ve probably heard of the chemical calcium in milk. But calcium shows up in lots of other stuff too. For example, the hard part of your bones and teeth is made from calcium connected to a chemical ...