Cited by 1,092Neurotransmitter Receptor Influence on BehaviorMetabolism and Genetic DisordersParkinson's Disease Mechanisms and Treatments

Tyrosine hydroxylase and regulation of dopamine synthesis

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Daubner, S. Colette, Le, Tiffany, Wang, Shanzhi·2011·Archives of Biochemistry and Biophysics

Abstract

Tyrosine hydroxylase is the rate-limiting enzyme of catecholamine biosynthesis; it uses tetrahydrobiopterin and molecular oxygen to convert tyrosine to DOPA. Its amino terminal 150 amino acids comprise a domain whose structure is involved in regulating the enzyme's activity. Modes of regulation include phosphorylation by multiple kinases at four different serine residues, and dephosphorylation by two phosphatases. The enzyme is inhibited in feedback fashion by the catecholamine neurotransmitters. Dopamine binds to TyrH competitively with tetrahydrobiopterin, and interacts with the R domain. TyrH activity is modulated by protein-protein interactions with enzymes in the same pathway or the tetrahydrobiopterin pathway, structural proteins considered to be chaperones that mediate the neuron's oxidative state, and the protein that transfers dopamine into secretory vesicles. TyrH is modified in the presence of NO, resulting in nitration of tyrosine residues and the glutathionylation of cysteine residues.

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Research works printed but not linked: 2

  1. [25]Dunkley PR Bobrovskaya L Graham ME von Nagy-Felsobuki EI Dickson PW 2004 Tyrosine hydroxylase phosphorylation: Regulation and consequences J Neurochem 91 1025 1043 15569247
  2. [83]Kuhn D 2003 Tetrahydrobiopterin prevents nitration of tyrosine hydroxylase by peroxynitrite and nitrogen dioxide Molecular Pharmacology 64 946 14500751

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Authors
Daubner, S. C., Le, T., & Wang, S.
Affiliations
  • St. Mary's University, Texas (US)
  • Texas A&M University (US)
Corresponding author
Daubner, S. Colette
Venue
Archives of Biochemistry and Biophysics
Publisher
Elsevier BV
Published
2011-04
Volume
508
Issue
1
Pages
1-12
ISSN
0003-9861 (ISSN-L)
OpenAlex
W2103493168
Cited by
1,092
References
89
Citations by year
2026: 120 · 2025: 125 · 2024: 99 · 2023: 116 · 2022: 98 · 2021: 100 · 2020: 87 · 2019: 70 · 2018: 71 · 2017: 57 · 2016: 37 · 2015: 27 · 2014: 31 · 2013: 29 · 2012: 22
FWCI
1.56
Type
journal article
Language
en
Open access
Locations
  • Archives of Biochemistry and Biophysics (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Institute of General Medical Sciences (R01GM047291)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Clinical Biochemistry › Metabolism and Genetic Disorders
  • Health Sciences › Medicine › Neurology › Parkinson's Disease Mechanisms and Treatments
Keywords
tyrosine hydroxylase, dopamine synthesis, catecholamine synthesis, tetrahydrobiopterin, DOPA, R domain, phosphorylation, product inhibition, dopamine, protein-protein interaction, molecular chaperones, oxidative stress, nitration, glutathionylation, nitric oxide, protein kinase A, phosphatase
MeSH terms
Amino Acid Sequence, Animals, Dopamine, Humans, Molecular Sequence Data, Nitrates, Sulfhydryl Compounds, Tyrosine 3-Monooxygenase, Protein Structure, Tertiary

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