dihydroxyphenylalanine


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di·hy·drox·y·phen·yl·al·a·nine

 (dī′hī-drŏk′sē-fĕn′əl-ăl′ə-nēn′, -fē′nəl-)
n.
Dopa.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.dihydroxyphenylalanine - amino acid that is formed in the liver and converted into dopamine in the brain
amino acid, aminoalkanoic acid - organic compounds containing an amino group and a carboxylic acid group; "proteins are composed of various proportions of about 20 common amino acids"
Bendopa, Brocadopa, Larodopa, L-dopa, levodopa - the levorotatory form of dopa (trade names Bendopa and Brocadopa and Larodopa); as a drug it is used to treat Parkinson's disease
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Abbreviations: AcOH, acetic acid; CTAB, cetrimonium bromide; DOPA, dihydroxyphenylalanine; FIF, formaldehyde-induced fluorescence; L-DOPA, L-3,4-dihydroxyphenylalanine; o-diphenols, ortho-diphenols; PBS, phosphate-buffered saline; PFA.
PO possesses both monophenol monooxygenase activity (EC 1.14.18.1, tyrosine, dihydroxyphenylalanine, oxygen, and oxidoreductase) and o-diphenoloxidase activity (EC 1.10.3.1, o-diphenol, oxygen, and oxidoreductase) [7, 8].
The substrate L-DOPA (dihydroxyphenylalanine, 0.5 mM) was added to the mixture and formation of the L-dopaquinone was continuously monitored by assaying the change in absorbance at 475 nm for 1 min.
(8) A PET scan has a better image resolution and, depending on the tracer (18-fluoro dihydroxyphenylalanine), its sensitivity could reach 100%.
Moreover, amino acid tyrosine is converted into dihydroxyphenylalanine (DOPA) by the tyrosine hydroxylase enzyme using oxygen, iron, and tetrahydrobiopterin (THB) that act as cofactors.
130 [micro]mol/min/mg [62] Pseudomonas putida 0.375 [micro]mol/min/mg [20] NR: not reported; DOPA: dihydroxyphenylalanine.