Ketotriose

Definition

noun, plural: ketotrioses

A triose containing a ketone group, and in which the carbonyl group is in the middle of the chain


Supplement

An example of a natural ketotriose is dihydroxyacetone (DHA) (a.k.a. glycerone, formula: C3H6O3). DHA is a biochemical compound that takes a role in different metabolic pathways, e.g. glycolysis.

Its role in glycolysis: DHA, especially with a phosphate group (i.e. DHAP), is one of the two intermediate products following the breakdown of fructose 1,6-bisphosphate through the help of the enzyme fructose-bisphosphate aldolase . The other intermediate product is glyceraldehyde 3-phosphate.

Through the action of another enzyme, triose phosphate isomerase, DHAP molecule is rapidly converted into its isomer, D-glyceraldehyde 3-phosphate.


Word origin: keto- (relating to ketone) + triose

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