Lecture 19 Flashcards
What is transduction?
The rely of a message to the interior of a cell.
What does a receptor have to pass through to relay molecules for transduction?
The plasma membrane.
Which enzyme transfers phosphates from ATP to a protein?
Protein Kinases
Which enzyme remove phosphates?
Protein Phosphatases
What process consists of a signaling molecule continuing to activate protein kinases until no longer needed?
Phosphorylation Cascade
What is the purpose of the phosphorylation cascade?
The steps allow amplification of the signaling molecule’s message and regulation of it.
When are second messengers created?
Once the signal has been received.
What enzyme does cAMP make?
Adenylyl Cyclase
What enzyme does cAMP unmake?
Phosphodiesterase
What does the enzyme adenylyl cyclase convert?
ATP - cAMP
What does the enzyme phosphodiesterase convert?
cAMP - ATP
What are some functions of cAMP?
Involved in the activation of protein kinases
Comes from ATP
In ion channels, protein kinase A is targeted by cAMP
