Dihydroxyphenylalanine ammonia-lyase

This enzyme belongs to the family of lyases, specifically ammonia lyases, which cleave carbon-nitrogen bonds. The systematic name of this enzyme class is 3,4-dihydroxy-L-phenylalanine ammonia-lyase (trans-caffeate-forming). Other names in common use include beta-(3,4-dihydroxyphenyl)-L-alanine (DOPA) ammonia-lyase, and 3,4-dihydroxy-L-phenylalanine ammonia-lyase. This enzyme participates in tyrosine metabolism.

References

MacLeod NJ and Pridham JB (1963). "Deamination of beta-(3,4-dihydroxyphenyl)-L-alanine by plants". Biochem. J. 88 (1): 45–52. PMC 1203845. PMID 16749027.

Carbon-nitrogen lyases (EC 4.3)

4.3.1: ammonia-lyases	Histidine ammonia-lyase Formiminotransferase cyclodeaminase Serine dehydratase

4.3.2: amidine-lyases	Argininosuccinate lyase Adenylosuccinate lyase

Enzymes

Activity	Active site Binding site Catalytic triad Oxyanion hole Enzyme promiscuity Catalytically perfect enzyme Coenzyme Cofactor Enzyme catalysis Enzyme kinetics Lineweaver–Burk plot Michaelis–Menten kinetics

Regulation	Allosteric regulation Cooperativity Enzyme inhibitor

Classification	EC number Enzyme superfamily Enzyme family List of enzymes

Types	EC1 Oxidoreductases(list) EC2 Transferases(list) EC3 Hydrolases(list) EC4 Lyases(list) EC5 Isomerases(list) EC6 Ligases(list)

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