For example, prokaryotic organisms have sensors ... Through this network of signaling pathways, the cell is constantly integrating all the information it receives from its external environment.
This method, using changes in light wavelength, reveals how TLRs respond differently to distinct signals. Researchers discovered that cordycepin, derived from the caterpillar fungus Cordyceps ...
How do these molecules activate signaling pathways in their target cells? They bind to cell-surface proteins of the seven-helix-G protein-coupled receptors (GPCRs). These in turn activate either ...