Beta-galactoside
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A β-galactoside is a type of galactoside in which the glycosidic bond lies above the plane of the galactose residue. The most commonly recognized and used β-galactoside in biochemistry is Lactose. However, other chemicals, such as ONPG, are known, but these are typically synthesized for biochemical assays. An enzyme that breaks the β-galactoside bond is called a β-galactosidase.
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| Major Families of Biochemicals | ||
| Peptides | Amino acids | Nucleic acids | Carbohydrates | Lipids | Terpenes | Carotenoids | Tetrapyrroles | Enzyme cofactors | Steroids | Flavonoids | Alkaloids | Polyketides | Glycosides | ||
| Analogues of nucleic acids: | Types of Glycosides | Analogues of nucleic acids: |
| Bond: | O-glycosidic bond | S-glycosidic bond | N-glycosidic bond | |
|---|---|---|
| Geometry: | α-Glycoside | β-Glycoside | 1,4-Glycoside | 1,6-Glycoside | |
| Glycone: | Glucoside | Fructoside | Glucuronide | |
| Aglycone: | Alcoholic glycoside | Anthraquinone glycoside | Coumarin glycoside | Cyanogenic glycoside | Flavonoid glycoside | Phenolic glycoside | Saponin | Cardiac glycoside | Steviol glycoside | Thioglycoside | Glycosylamine | Bufanolide | Cardenolide | |
