What is the name of the region where a reactant binds to an enzyme?

If you decide to make the leap to horse ownership it truly is a life changing event. once you sign the dotted line on the bill of sale you will have full responsibility for care, custody, training and financing your new horse.  . and leasing is just for a period of time for a amount of )

Idon’t know i’m just trying to get points to make me look smawt