The signal transduction cascade begins when adenylyl ... Adenylyl cyclase creates multiple cyclic AMP molecules, which fan out and activate protein kinases (PKA, in this example).

Given the vast amount of knowledge today about how signal-transcription cascades ... that 30 years ago the field was in its infancy. Cyclic AMP (cAMP) was firmly established as a second messenger ...

The research compares how two bacterial species—Escherichia coli and Mycobacterium tuberculosis—use a signaling molecule ...