Dictionary > Talose

Talose

Definition
noun
An aldohexose monosaccharide that is C-2 epimeric with galactose
Supplement
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:

    Reference(s):

    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...

    Cells in different stages of meiosis
    Meiosis – The Genetics of Reproduction

    Meiosis is a form of cell division that creates gametes. It is comprised of two divisions that in the end, the resulting..

    human brain structure
    The Conscious & Unconscious Nervous System

    This tutorial elaborates on how the nervous system works, particularly at the tissue level of the brain. There are three..

    green leaf - close up view
    Leaves

    Leaves are the major photosynthetic organ of a plant. Apart from that, they are also crucial to water movement. In this ..

    Gene Pool and Speciation
    The Gene Pool and Population Genetics

    According to Charles Darwin's theory of natural selection, preferable genes are favored by nature in the gene pool, and ..

    Control of body movement
    Control of Body Movement

    Some of the body movements can be controlled at will, others cannot. The body has a motor program, which is the pattern ..

    The process of photosynthesis
    Photosynthesis – Photolysis and Carbon Fixation

    Photosynthesis is the process that plants undertake to create organic materials from carbon dioxide and water, with the ..

    Related Articles...

    No related articles found

    See all Related Topics