9. Carbohydrates
Glycosidic Bond
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In this video, we're going to talk about the naming of glycosidic bonds. And so glycosidic bonds are named based on 2 criteria that we have listed down below. And so the first criteria is the configuration of the anomeric carbon that's involved in the glycosidic linkage or the configuration of the anomeric carbons, plural, involved in the glycosidic linkage. And so, of course, we know from our previous lesson videos that the configuration of anomeric carbons is going to include either the alpha configuration or the beta configuration. And so the second criteria that we use to name glycosidic bonds is the numbering of the carbon atoms that are involved in the glycosidic linkage. Now sometimes in the names of glycosidic bonds, you'll find that there are arrows used in the names. And so single headed arrows like this one right here that point in only one direction. They are suggesting that only one anomeric carbon is involved in the bond. Whereas, double headed arrows like this one right here that point in both directions. These are suggesting that 2 anomeric carbons, plural, are involved in the glycosidic bond. Now alternatively, the name of a glycosidic bond might not have any arrows in them at all. And instead of having arrows, it will use commas. And so commas can also be used to replace the arrows and that's also perfectly acceptable.
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