Dihydroxyphenylalanine ammonia-lyase
| dihydroxyphenylalanine ammonia-lyase | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifiers | |||||||||
| EC number | 4.3.1.11 | ||||||||
| CAS number | 37290-92-9 | ||||||||
| Databases | |||||||||
| IntEnz | IntEnz view | ||||||||
| BRENDA | BRENDA entry | ||||||||
| ExPASy | NiceZyme view | ||||||||
| KEGG | KEGG entry | ||||||||
| MetaCyc | metabolic pathway | ||||||||
| PRIAM | profile | ||||||||
| PDB structures | RCSB PDB PDBe PDBsum | ||||||||
| Gene Ontology | AmiGO / QuickGO | ||||||||
| |||||||||
In enzymology, a dihydroxyphenylalanine ammonia-lyase (EC 4.3.1.11) is an 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
- MacLeod NJ; Pridham JB (1963). "Deamination of beta-(3,4-dihydroxyphenyl)-L-alanine by plants". Biochem. J. 88 (1): 45–52. PMC 1203845. PMID 16749027.
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