Structure of ATCase (Part II)

[@backstreetfan2887]

This is my new favorite you tube channel.

[@aichaTD]

I think your videos are AMAZING ! You have no idea how much you're heping me and probably many others, throught them. I just wanted to take the time to let you know that. Thank you !

[@mattmenna7928]

So far this is the only video I haven't had to pause a million times to take notes