So both of these are essentially attached into the membrane. So in five or here we see activator Ras moves on to activate a protein kinase called a Ras. So this is a protein kinase and once this is activated, it goes on and activates other molecules via the process of asphylation. And what it activates are molecules known as Mechs or simply Mech. So activate a wrap then goes on to activate protein kinases called Mech. So what exactly does Mech actually stand for?