Insight into how membrane ion pumps work requires structural snapshots of various stages of their catalytic cycle. Now a fifth freeze-frame image of a calcium pump in action adds to a striking body of ...

One of the cell's key enzymes, the calcium pump, has now been been described in its decisive moment -- a so-called transition state. These findings provide a very detailed picture of how one of the ...

The significance of muscle pumps in the fitness realm is evident. Muscle pumps, which are marked by a brief enhancement in muscle size and definition observed during and after an exercise routine, are ...