00:01
One answer this question is talk about the g -gaport protein receptor.
00:04
So imagine this is the cell membrane, and here we're going to have a g -capull protein receptor.
00:09
Okay? it is going to be called g -protein -capul receptor because here we're going to have a g -protein.
00:15
So this is going to be the g -protein.
00:17
When there is no ligand here, when there is no ligand there, then this g -protein is going to have this alpha subunit bound to gdp and it is going to be inactive.
00:30
Okay.
00:30
But once a ligand binds to this receptor, then this gdp is going to be removed and you're going to bind gtp here.
00:39
Once gtp binds there, this alpha subjunit with a gtp is going to be detached, it's going to detach from this beta and gamma subjunice of the g protein, and it is going to move here where it is going to bind to an enzyme that is called adenylide cyclase.
00:56
This adenylase cyclase is going to break down atp.
01:00
In order to produce high levels of cyclic amp.
01:04
This is the second messenger...
