Others had assured me that studying this sexy, new hormonal signal in a human tissue ... cyclic AMP in other cells, Gordon said that this role of PKA in S49 cells was no surprise.

The human genome encodes potentially thousands of tiny proteins that were previously overlooked. The search is on to find out ...

The new molecules target a metabolic pathway that only occurs in bacterial cells, thus sparing human cells. The team published its results in the journal Angewandte Chemie International Edition .