And what it basically does is it synthesizes these Alpha One Six glycocitic bonds that lead to the branching of glycogen. So what the enzyme actually does is it first breaks an Alpha One four glycocitic bond and it detaches a group of glucose molecules that are usually seven residues in length. So this group that we're detaching basically must contain a terminal non reducing residue and we'll see exactly what that looks like in just a moment. So the glycogen branching enzyme detaches a group of seven or more glucose residues that contain a terminal residue and attach that group via an Alpha One Six glycocitic bond, somewhere on the interior of that particular glycogen molecule. Now, the branching enzyme actually requires two things. Firstly, it requires that the original glycogen chain on which we begin working on is at least eleven residues in length.