Title : Aromatic L-amino acid decarboxylase enzyme activity in deficient patients and heterozygotes.

Pub. Date : 2007 Apr

PMID : 17240182






4 Functional Relationships(s)
Download
Sentence
Compound Name
Protein Name
Organism
1 METHODS: We describe assays for plasma AADC enzyme activity using both of its substrates, 5-hydroxytryptophan (5-HTP) and 3,4-dihydroxyphenylalanine (L-dopa). 5-Hydroxytryptophan dopa decarboxylase Homo sapiens
2 METHODS: We describe assays for plasma AADC enzyme activity using both of its substrates, 5-hydroxytryptophan (5-HTP) and 3,4-dihydroxyphenylalanine (L-dopa). 5-Hydroxytryptophan dopa decarboxylase Homo sapiens
3 RESULTS: AADC enzyme activity in control plasma on average is a factor 8-12 higher with L-dopa as substrate than with 5-HTP. 5-Hydroxytryptophan dopa decarboxylase Homo sapiens
4 In AADC deficient patients, the enzyme activity towards both substrates, L-dopa and 5-HTP, are equally decreased, as are the CSF concentrations of HVA, 5-HIAA and MHPG, whereas heterozygotes have intermediate AADC activity levels. 5-Hydroxytryptophan dopa decarboxylase Homo sapiens