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: MIT-licensed, you can fork it.

gollark: Look, the main code is all right here, other stuff is... well, it's spread across a lot of files, but you can see it, check the `local files = whatever` bit and my pastebin account.

gollark: https://pastebin.com/RM13UGFa

gollark: I'm not saying much about the *other* exploit, because that would provide clues about it.

gollark: There are issues I know of in GPS (pretty obvious, hard to exploit, hard to patch), rednet repeaters (not useful to exploit, easy to patch, not too obvious), rednet itself (obvious, easily exploitable, but most people making serious programs are already aware), potatOS (very non-obvious, not a huge issue as accidental RCE still isn't possible, easy to exploit if you know how).

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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