In this video, we're going to introduce O-glycosidic bonds and N-glycosidic bonds. Among the many types of glycosidic bonds, these are really the two primary types that you should know moving forward. The first type is the O-glycosidic bond, which is just a glycosidic bond between an anomeric carbon of a sugar and an oxygen atom. The "O" is, of course, for the "o" in the oxygen. The second type of glycosidic bond is the N-glycosidic bond, which is a glycosidic bond between the anomeric carbon of a sugar and a nitrogen atom. Here, the "N" is for nitrogen.

If we take a look at our image on the left-hand side, notice that we have a sugar here, and the sugar's anomeric carbon is this carbon atom that we see right here, numbered with number 1. Notice that the anomeric carbon is bound to an oxygen atom here. This bond that we see here is going to be referred to as an O-glycosidic bond. Now, notice over here on the right-hand side of our image, we have another sugar. Again, the sugar's anomeric carbon is carbon number 1 right here. Notice that the anomeric carbon is bound to a nitrogen atom, and this chemical bond that we see here is an N-glycosidic bond.

Moving forward through our course, we will see O-glycosidic bonds and some N-glycosidic bonds as well. It's important to keep this in mind. That concludes our introduction to O and N glycosidic bonds, and I'll see you guys in our next video.