Trisaccharide
Trisaccharides are oligosaccharides composed of three monosaccharides with two glycosidic bonds connecting them. Similar to the disaccharides, each glycosidic bond can be formed between any hydroxyl group on the component monosaccharides. Even if all three component sugars are the same (e.g., glucose), different bond combinations (regiochemistry) and stereochemistry (alpha- or beta-) result in trisaccharides that are diastereoisomers with different chemical and physical properties.
Examples
| Trisaccharide | Unit 1 | Bond | Unit 2 | Bond | Unit 3 |
| Nigerotriose | glucose | α(1→3) | glucose | α(1→3) | glucose |
| Maltotriose | glucose | α(1→4) | glucose | α(1→4) | glucose |
| Melezitose | glucose | α(1→2) | fructose | α(1→3) | glucose |
| Maltotriulose | glucose | α(1→4) | glucose | α(1→4) | fructose |
| Raffinose | galactose | α(1→6) | glucose | β(1→2) | fructose |
| Kestose | glucose | α(1↔2) | fructose | β(1←2) | fructose |
gollark: If you want to declare a type with equality and hashing and other such apioforms, you'll need an entire file of rather a lot of apiocode.
gollark: It's quite verbose and annoying.
gollark: You could try Clojure or Scala or Kotlin or Apioforms or something.
gollark: If you're not using Java's OOP features (they're bad because OOP, so good choice) why even use Java?
gollark: Okay.
References
1) Lehninger Principles of Biochemistry by Albert L. Lehninger, David L. Nelson, and Michael M. Cox.
2) Biochemistry by Lubert Stryer.
External links
- Trisaccharides at the US National Library of Medicine Medical Subject Headings (MeSH)
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