isomerase

American  

[ahy-som-uh-reys, -reyz] / aɪˈsɒm əˌreɪs, -ˌreɪz /

noun

Biochemistry.

1. any of a class of enzymes that catalyze reactions involving intramolecular rearrangements.

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isomerase British  

/ aɪˈsɒməreɪs /

noun

1. any enzyme that catalyses the conversion of one isomeric form of a compound to another

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Etymology

Origin of isomerase

First recorded in 1940–45; isomer + -ase

Example Sentences

See Examples For:

isomerase

Another enzyme produced by the bacteria, known as arabinose isomerase, then converts the galactose into tagatose.

From Science Daily ● Jan. 13, 2026

Xylose isomerase probably functions to increase the diversity of the carbon sources that L. brevis can exploit, as is the case for the many other bacteria that produce this enzyme.

From Nature ● Oct. 23, 2018

Work remains to be done to fill in the gaps in explaining how xylose isomerase affects the level of trehalose in the fruit fly and the activity of octopamine-producing neurons in the brain.

From Nature ● Oct. 23, 2018

The triosephosphate isomerase enzyme then converts dihydroxyacetone phosphate into a second glyceraldehyde-3-phosphate molecule.

From Textbooks ● Jun. 19, 2013

In the next step of the first phase of glycolysis, the enzyme glucose-6-phosphate isomerase converts glucose-6-phosphate into fructose-6-phosphate.

From Textbooks ● Jun. 19, 2013