Definition of lyase in English:


Pronunciation /-ˌāz//ˈlīˌās/


  • An enzyme that catalyzes the joining of specified molecules or groups by a double bond.

    • ‘Whey contains many types of enzymes, including hydrolases, transferases, lyases, proteases, and lipases.’
    • ‘Other categories include transferases, oxidoreductases, ligases, lyases, isomerases, proteases, molecular chaperons, and GTPases.’
    • ‘Genetic defects are known for both the synthase and the lyase.’
    • ‘This protein has a pectate lyase enzyme activity and could be involved in cell wall elaboration during germination and pollen tube growth.’
    • ‘A strong decline with increasing leaf age in the activity of phenylalanine ammonia lyase, a key enzyme of flavonoid metabolism, was reported for barley.’