Heptose
A heptose is a monosaccharide with seven carbon atoms.
They have either an aldehyde functional group in position 1 (aldoheptoses) or a ketone functional group in position 2 (ketoheptoses).
There are few examples of C-7 sugars in nature, among which are:
- Sedoheptulose or D-altro-heptulose (a ketose), an early intermediate in lipid A biosynthesis
- Mannoheptulose, found in avocados
- L-glycero-D-manno-heptose (an aldose), a late intermediate in lipid A biosynthesis.
Ketoheptoses have 4 chiral centers, whereas aldoheptoses have 5.
See also
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| General: |
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| Geometry |
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| Monosaccharides |
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Ketohexose (Psicose, Fructose, Sorbose, Tagatose)
Aldohexose (Allose, Altrose, Glucose, Mannose, Gulose, Idose, Galactose, Talose)
Deoxy sugar ( Fucose, Fuculose, Rhamnose)
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Heptoses
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>7
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| Multiple |
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biochemical families: prot · nucl · carb (glpr, alco, glys) · lipd (fata/i, phld, strd, gllp, eico) · amac/i · ncbs/i · ttpy/i
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