Cited by 456Neuroscience and Neuropharmacology ResearchProtein Kinase Regulation and GTPase SignalingNeurotransmitter Receptor Influence on Behavior

Tyrosine hydroxylase phosphorylation: Regulation and consequences

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Dunkley, Peter R., Bobrovskaya, Larisa, Graham, Mark E., Von Nagy‐Felsobuki, Ellak I., Dickson, Phillip W.·2004·Journal of Neurochemistry

Abstract

The rate‐limiting enzyme in catecholamine synthesis is tyrosine hydroxylase. It is phosphorylated at serine (Ser) residues Ser8, Ser19, Ser31 and Ser40 in vitro, in situ and in vivo. A range of protein kinases and protein phosphatases are able to phosphorylate or dephosphorylate these sites in vitro. Some of these enzymes are able to regulate tyrosine hydroxylase phosphorylation in situ and in vivo but the identity of the kinases and phosphatases is incomplete, especially for physiologically relevant stimuli. The stoichiometry of tyrosine hydroxylase phosphorylation in situ and in vivo is low. The phosphorylation of tyrosine hydroxylase at Ser40 increases the enzyme's activity in vitro, in situ and in vivo. Phosphorylation at Ser31 also increases the activity but to a much lesser extent than for Ser40 phosphorylation. The phosphorylation of tyrosine hydroxylase at Ser19 or Ser8 has no direct effect on tyrosine hydroxylase activity. Hierarchical phosphorylation of tyrosine hydroxylase occurs both in vitro and in situ, whereby the phosphorylation at Ser19 increases the rate of Ser40 phosphorylation leading to an increase in enzyme activity. Hierarchical phosphorylation depends on the state of the substrate providing a novel form of control of tyrosine hydroxylase activation.

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Crossref · 10.1111/j.1471-4159.2004.02797.x

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Research works printed but not linked: 3

  1. Haycock J. W., 1993, Phosphorylation of tyrosine hydroxylase isoforms in human neuroblastoma cells, Mol. Biol. Cell, 41, 406a
  2. Waymire J., 1993, Multiple site phosphorylation and activation of tyrosine hydroxylase, Adv. Prot. Phosphatases, 7, 495
  3. Yamauchi T., 1980, Involvement of calmodulin in the Ca2+‐dependent activation of rat brainstem tyrosine 3‐monooxygenase, Biochem. Int., 1, 98

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Authors
Dunkley, P. R., Bobrovskaya, L., Graham, M. E., Von Nagy‐Felsobuki, E. I., & Dickson, P. W.
Affiliations
University of Newcastle Australia (AU)
Corresponding author
Dunkley, Peter R.
Venue
Journal of Neurochemistry
Publisher
Wiley
Published
2004-11-18
Volume
91
Issue
5
Pages
1025-1043
ISSN
  • 0022-3042 (ISSN-L)
  • 1471-4159
OpenAlex
W2114431124
Cited by
455
References
117
Citations by year
2026: 6 · 2025: 12 · 2024: 13 · 2023: 16 · 2022: 8 · 2021: 23 · 2020: 19 · 2019: 26 · 2018: 20 · 2017: 23 · 2016: 19 · 2015: 29 · 2014: 24 · 2013: 32 · 2012: 28
FWCI
1.16
Type
journal article
Language
en
Open access
Locations
  • Journal of Neurochemistry (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Medical Research Council
  • National Health and Medical Research Council
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Kinase Regulation and GTPase Signaling
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
Keywords
tyrosine hydroxylase, serine phosphorylation, catecholamine synthesis, protein kinases, protein phosphatase, enzyme activation, phosphorylation stoichiometry
MeSH terms
Animals, Models, Biological, Phosphoprotein Phosphatases, Phosphorylation, Protein Kinases, Serine, Tyrosine 3-Monooxygenase

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