00:01
In order to answer this question, let's talk about the g protein, okay? well, this question says which one is the following is the same is g proteins is false.
00:11
So optionally, aces g proteins are activated by interacting with g protein couple receptors.
00:16
And this is true.
00:17
Okay, so this is not the answer because we're looking for the false one.
00:20
Remember that if this is your cell membrane, you're going to have here a g protein couple receptor, and in the intracellular part of the cell, it is going to be attached to a cell.
00:30
A g protein.
00:31
Okay? so it is always bound to a g protein caproideceptor.
00:36
Option b says a g proteins can activate phospholipase, phospholipase, phospholipase.
00:46
And this is also true.
00:47
Remember that you have many types of g proteins.
00:49
For example, in case of gq protein, main this is like a gq protein, then when this, when there is a ligand here, this alpha subjun is going to remove gtp and it's going to bind into gtp, and it's going to activate an enzyme here that is called phospholipase c.
01:07
Okay, so this is true.
01:10
Option c says, option c says, um, g proteins are activated when they are about to atp.
01:18
And this is false and this is the answer for this question, because in order to activate this g protein, you have to bind to gtp, not atp, gtp, okay? option this is g protein or g proteins can activate adenylide cyclies and this is also true because in case of a g .s protein for example, of gs protein, this alpha subunit is going to bind an enzyme called adenylylid cyclist...
