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Dihydroxyphenylalanine ammonia-lyase

From Wikipedia, the free encyclopedia
dihydroxyphenylalanine ammonia-lyase
Identifiers
EC no.4.3.1.11
CAS no.37290-92-9
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum
Gene OntologyAmiGO / QuickGO
Search
PMCarticles
PubMedarticles
NCBIproteins

In enzymology, a dihydroxyphenylalanine ammonia-lyase (EC 4.3.1.11, entry deleted) is a non-existing enzyme that catalyzes the chemical reaction

3,4-dihydroxy-L-phenylalanine trans-caffeate + NH3

Hence, this enzyme has one substrate, 3,4-dihydroxy-L-phenylalanine (L-DOPA), and two products, trans-caffeate and NH3.

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

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  • Magee WL, Berry JF, Strickland KP, Rossiter RJ (July 1963). "Labelling of phospholipids from inorganic [P]phosphate in brain preparations. Effect of acetylcholine, chlorpromazine and azacyclonol". The Biochemical Journal. 88 (1): 45–52. PMC 1203845. PMID 16749027.