Dictionary > Talose


An aldohexose monosaccharide that is C-2 epimeric with galactose
Monosaccharides are the simplest form of carbohydrates. They may be classified based on the number of constituent carbon atoms. For instance, hexose is a monosaccharide with six carbon atoms. They may be further classified based on the functional group present. An aldose is a sugar with an aldehyde functional group whereas a ketose is a sugar with a ketone functional group. Talose is one of the hexose monosaccharides and it belongs to the aldoses.
Talose (particularly D- talose) is used as a substrate in identifying and characterization of ribose-5-phosphate isomerases of Clostridia.1 D-Talose is a C-2 epimer of galactose. Galactose is an aldohexose similar to glucose in terms of chemical structure. This means that they have similar chemical formula: C6H12O6. Galactose does not occur in free state and is usually found as a constituent of complex biomolecules (e.g. lactose, galactan). Talose is an unnatural monosaccharide. It is soluble in water and slightly soluble in methanol.2
Talose is also an epimer of mannose at C-4. Mannose is a hexose monosaccharide that belongs to the aldoses.
IUPAC name:

  • (3S,4S,5R,6R)-6-(Hydroxymethyl)oxane-2,3,4,5-tetrol

Chemical formula:

  • C6H12O6
  • See also:


    1 D-talose. (n.d.). Sigma-Aldrich. Retrieved from http://www.sigmaaldrich.com/catalog/search/ProductDetail/SIGMA/86265

    2 Talose. (n.d.). Wikipedia.org. Retrieved from https://en.wikipedia.org/wiki/Talose

    You will also like...

    Pink Lotus plant on a pond
    Freshwater Lentic Communities & Animals

    This tutorial looks at some of the communities in freshwater lentic habitats. For instance, symbiosis occurs in a commun..


    Stems primarily provide plants structural support. This tutorial includes lectures on the external form of a woody twig ..

    The Dinosaurs

    Dinosaurs represented a major turn in the evolutionary development of organisms on Earth. The first dinosaurs were presu..

    Origins of Life on Earth
    Origins of Life on Earth

    Earth was created around 4.5 billion years ago and life began not long after. Primitive life likely possessed the elemen..

    Gene Regulation in Eukaryotes
    Gene Regulation in Eukaryotes

    Learn about the general structure of a eukaryotic gene, the transcription factors, and post-transcriptional regulation....

    Crossing Over and Genetic Diversity
    Inheritance and Probability

    Gregor Mendel, an Austrian monk, is most famous in this field for his study of the phenotype of pea plants, including ..

    Related Articles...

    No related articles found

    See all Related Topics