00:02
Hi, so g proteins, so g proteins are cell surface receptor proteins, they are the cell surface receptor, receptors, proteins that act as signal transducers, to produce, signal transducers to produce, signal, to produce, intracellular messengers.
00:47
Intracellular messengers.
00:54
So in a g -protein, binding of first of all, the binding of extracellular signal molecule to receptor protein gpcr.
01:07
So the steps can be binding of extracellular signal molecules, which may be hormones or other molecules signal molecules to receptor proteins which are the gpcr this activates activates adenylyl cyclase now this in turns then activates g -protein now g protein it increases cambp it produces secondary messenger that is the camp and increases camp concentration in cytosol.
02:14
Concentration in cytosol.
02:19
So camp.
02:21
Camp are the secondary messengers.
02:26
They are the secondary messengers...
