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Tyrosine hydroxylase phosphorylation: regulation and consequences
Open accessAbstract
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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“α-Synuclein activates stress-related protein kinases to potentiate TH phosphorylation at serine 40, suggesting the possible mechanism of pSer40-TH elevation by α-synuclein aggregation [52,124,125].”
From Degradation of Tyrosine Hydroxylase by the Ubiquitin-Proteasome System in the Pathogenesis of Parkinson’s Disease and Dopa-Responsive Dystonia (2020) · cites this paper as [52]
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Perez, S. D., Kozic, B., Molinaro, C. A., ThyagaRajan, S., Ghamsary, M. G., Lubahn, C. L., Lorton, D., & Bellinger, D. L. (2012) · Journal of Neuroimmunology · doi:10.1016/j.jneuroim.2012.03.022 · Cited by 8
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BackgroundEarly life peripheral lipopolysaccharide challenge reprograms catecholaminergic neurons
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“In addition, the tyrosine and tryptophan hydroxylases share a similar form of regulation both at the transcription level and by phosphorylation at multiple serine residues (Dunkley et al. 2004; Fujisawa and Okuno 2005).”
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“…neurons in culture have shown that electric activity or depolarizations are not only crucial for the control of DA release and tyrosine hydroxylase (TH) activity (Kumer & Vrana, 1996; Salvatore et al., 2001; Dunkley et al., 2004), but also for DA neuron survival (see review, Michel et al., 2007).”
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“TH is an important enzyme for catecholamine production and secretion (Dunkley et al. 2004).”
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“TH activity is regulated by phosphorylation of specific serine residues (particularly serine 40) (Dunkley et al., 2004), therefore assessment of phosphorylation at serine 40 may represent a direct and sensitive measure of TH activity.”
BackgroundInfluentialThe mediating role of phosphodiesterase type 4 in the dopaminergic modulation of motor impulsivity
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“BH4 subsequently reduces the iron moiety of TH, thereby catalytically activating the enzyme for hydroxylation of tyrosine (9, 22, 38).”
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Yan, Y., Zhang, B., Mao, Y., Guo, Z., Tian, J., Zhao, G., Pu, J., Luo, W. F., Ouyang, Z., & Zhang, B. (2016) · International Journal of Neuroscience · doi:10.1080/00207454.2016.1236381 · Cited by 5
“phosphorylated by protein kinases [28,29]; (2) the catalytic domain, which binds the substrates oxygen and tyrosine and the cofactor tetrahydrobiopterin and (3) the tetramerization domain [30].”
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“Dephosphorylation reactions by protein phosphatase 2A (PP2A) suppress its activity (Goldstein and Lieberman 1992; Dunkley et al. 2004).”
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“Unlike other enzymes, the TH protein has its enzymatic activity strictly controlled at the rate-limiting step of dopamine biosynthesis [17, 18].”
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“In situ phosphorylation of TH at Ser31 increases TH activity and catecholamine synthesis (Dunkley et al., 2004).”
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“I, 1:400) 35 ; anti-CGRP rabbit polyclonal (Sigma, C8198, 1:300) 36–38 ; anti-tyrosine hydroxylase (TH) rabbit polyclonal (Pel-Freez; Rogers, AR; P40101; 1:400) 39,40 ; and anti-smooth muscle actin (α-SMA) Cy3-conjugated mouse monoclonal antibody (Sigma, C6198, 1:200) 16,41 .”
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“Although dopamine β-hydroxylase is the enzyme that catalyses the conversion of dopamine into NA, we measured TH activity because it represents the rate-limiting step in catecholamine biosynthesis and it is tightly regulated by short- and long-term mechanisms (Flatmark, 2000; Dunkley et al. 2004; Stanford, 2013).”
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“DOC treatment markedly increased the 440 phosphorylation of tyrosine hydroxylase, which augments catalytic activity of this rate-441 limiting enzyme (Dunkley et al., 2004).”
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“TH is regulated by two classes of mechanisms: mediumto long-term regulation of gene expression, plus short-term regulation of enzyme activity to replace catecholamines after their release (Dunkley et al. 2004; Kumer and Vrana 1996).”
BackgroundMuniz, M. M. M., Fonseca, L. F. S., Silva, D. B. D. S., Magalhães, A. F. B., Ferro, J. A., Chardulo, L. A. L., Baldi, F. S., Cánovas, Á., & de Albuquerque, L. G. (2022) · Functional & Integrative Genomics · doi:10.1007/s10142-022-00844-w · Cited by 4
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“…significantly increased in the adrenal medulla 60 min following HDZ administration, likely in order to replenish adrenal catecholamine levels (Dunkley et al., 2004), in response to the early catecholamine release shown previously to occur within 30 min of HDZ administration (Madden et al.,…”
InfluentialPatterns of phosphorylated tyrosine hydroxylase vary with song production in female starlings
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“Tyrosine hydroxylase (TH) is a rate-limiting enzyme in the synthesis of dopamine, and phosphorylation of TH occurs during short-term regulation of this enzyme and triggers synthesis of catecholamines (Dunkley et al., 2004; Kumer and Vrana, 1996; Lew et al., 1999).”
BackgroundDopaminergic Neurotransmission
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“This activation may be a result of phosphorylation of Ser31 [89], a critical serine residue [90].”
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“PP2A and PP2C are believed to dephosphorylate TH at Ser40 to inactivate the protein (Dunkley et al., 2004).”
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Role of the Adrenal Medulla in Hypoglycaemia-Associated Autonomic Failure—A Diabetic Perspective
Senthilkumaran, M., Koch, C., Herselman, M. F., & Bobrovskaya, L. (2024) · Metabolites · doi:10.3390/metabo14020100 · Cited by 5
“…global gene profiling in the adrenal gland, reported a significant increase in the expression of several adrenal peptides including NPY, galanin, proenkephalin, and PP2A, a common phosphatase that can dephosphorylate TH and AADC [101,141] in response to recurrent insulin-induced hypoglycaemia [37].”
BackgroundSelf-citationHur, K., Lee, Y., Donio, A. L., Kim, S., Lee, B., Seo, J., Kundu, D., Kim, K., Kohut, S. J., Lee, S., et al. (2024) · British Journal of Pharmacology · doi:10.1111/bph.16370 · Cited by 3
O- GlcNAcylation regulates tyrosine hydroxylase serine 40 phosphorylation and l -DOPA levels
Rodrigues, B. D. C., Lucena, M. C., Costa, A. C. R., Oliveira, I. D. A., Thaumaturgo, M. A. S., Paes-Colli, Y., Beckman, D., Ferreira, S. T., Mello, F. G. D., Reis, R. A. D. M., et al. (2025) · American Journal of Physiology-Cell Physiology · doi:10.1152/ajpcell.00215.2024 · Cited by 3
Effects of Prenatal Stress on the Formation of the Orexinergic System of the Hypothalamus in Rats
Morina, I. Y., Петровна, С. Е., & Romanova, I. V. (2020) · Neuroscience and Behavioral Physiology · doi:10.1007/s11055-020-00942-x · Cited by 3
Abramoff, T., Guil, M. J., Morales, V. P., et al. (2013) · Neurochemical Research · doi:10.1007/s11064-013-1114-0 · Cited by 3
A Catecholamine Precursor Does Not Influence Exercise Performance in Warm Conditions
Cordery, P., James, L. J., Peirce, N., Maughan, R. J., & Watson, P. (2015) · Medicine & Science in Sports & Exercise · doi:10.1249/mss.0000000000000791 · Cited by 3
“Tyrosine hydroxylase is the rate-limiting enzyme in the synthesis of catecholamines and, under normal physiological conditions, is close to saturation (11).”
BackgroundOng, L. K., Page, S. L., Briggs, G. D., Guan, L., Dun, M. D., Verrills, N. M., Dunkley, P. R., & Dickson, P. W. (2016) · Journal of Cellular Biochemistry · doi:10.1002/jcb.25839 · Cited by 3
“Thirdly, we examined potential mediators of TH regulation including protein kinases (ERK1/2 for Ser31; PKA and PKC for Ser40) and protein phosphatase (PP2A for Ser31 and Ser40) activities.”
BackgroundInfluentialSelf-citationMorgan, L. D., Mohammed, A., Patel, B. A., et al. (2020) · European Journal of Neuroscience · doi:10.1111/ejn.15033 · Cited by 3
“In vitro studies have shown that phosphorylation of both serines at positions 19 and 40 can increase TH activity by 1.5- to 2-fold (Dunkley et al., 2004; Fitzpatrick, 1999).”
BackgroundInfluentialVecchio, L. M., Bermejo, M. K., Dunn, A. R., Milenkovic, M., Urs, N. M., Ramsey, A. J., Miller, G. W., & Salahpour, A. (2017) · bioRxiv (Cold Spring Harbor Laboratory) · doi:10.1101/188318 · Cited by 3
“Membranes were incubated overnight (4°C) in solutions containing rabbit anti-phosphoTH-Ser19 (1:2000; Phospho Solutions, p1580-19), rabbit anti-phosphoTH-Ser31 (1:1000; Phospho Solutions, p1580-31) or rabbit anti-phosphoTH-Ser40 (1:2000; Phospho Solutions, p1580-40).”
BackgroundInfluentialPINK1 Regulates Dopamine and Lipids at Mitochondria to Maintain Synapses and Neuronal FunctionPreprint
Bus, C., Geisler, S., Feldkaemper, M. P., Flores‐Romero, H., Schaedler, A., Zittlau, K. I., Zarani, M., Uysal, B., Casadei, N., Fallier‐Becker, P., et al. (2019) · bioRxiv (Cold Spring Harbor Laboratory) · doi:10.1101/814343 · Cited by 3
“After washing and fixation with 2.5% glutaraldehyde (Science Services, Munich, Germany) in cacodylate buffer (pH7.”
BackgroundInfluentialTyrosine hydroxylase inhibits HCC progression by downregulating TGFβ/Smad signaling
Liu, G., Li, M., Zeng, Z., et al. (2024) · European journal of medical research · doi:10.1186/s40001-024-01703-z · Cited by 2
“Numerous studies have been performed to identify the kinases for the phosphorylation of S40 in TH [21], and eight different protein kinases were found [23–26].”
BackgroundDouma, E. H., Stoop, J., Lingl, M. V. R., Smidt, M. P., & van der Heide, L. P. (2024) · Cell & Bioscience · doi:10.1186/s13578-024-01312-7 · Cited by 2
“A wealth of data described that tyrosine hydroxylase is affected by the cAMP second messenger system [21, 26–31].”
BackgroundInfluentialAntonova, I., Kutcher, E. O., Филатова, Е. В., et al. (2023) · Journal of Evolutionary Biochemistry and Physiology · doi:10.1134/s0022093023020242 · Cited by 2
“TH first converts the amino acid L tyro sine into 3,4 dihydroxyphenylalanine and then into dopamine [3].”
BackgroundCalderón‐García, A. Á., Sánchez‐Barba, M., & González-Núñez, V. (2024) · Fishes · doi:10.3390/fishes9070268 · Cited by 2
“These molecular changes may be responsible for the physiological effects of morphine and cocaine, not only in those brain areas related to the reward pathway but also for the systemic outcomes in the entire organism.”
BackgroundJensik, P. J., & Arbogast, L. A. (2025) · Cells · doi:10.3390/cells14090642 · Cited by 2
“Phosphorylation of Ser40 and Ser31 increases TH activity, while phosphorylation of Ser19 increases Ser40 phosphorylation [7,8].”
Immunity in Parkinson's disease – The role of innate responses
Iyengar, A. S., Dunkley, P. R., & Dickson, P. W. (2025) · Journal of Neuroimmunology · doi:10.1016/j.jneuroim.2025.578716 · Cited by 4
Self-citationPrzybylska, I., Kania, D., Tymosiewicz, P., Langfort, J., & Chalimoniuk, M. (2021) · Postępy Biochemii · doi:10.18388/pb.2021_388 · Cited by 2
Nabhen, S. L., Guil, M. J., Saffioti, N. A., et al. (2013) · Neurochemistry International · doi:10.1016/j.neuint.2013.01.018 · Cited by 2
“Given that calcium has been involved in the regulation of TH activity and expression (Kumer and Vrana, 1996; Dunkley et al., 2004) and that the physiological responses mediated by ETs can be calcium dependent or calcium independent (Tykocki and Watts, 2010), in the present study we sought to determine the relative con…”
InfluentialKato, K., & Yamamoto, Y. (2012) · Respiratory Physiology & Neurobiology · doi:10.1016/j.resp.2012.11.004 · Cited by 2
Almela, P., García-Carmona, J. A., Laorden, E. M., Milanés, M. V., & Laorden, M. L. (2013) · Frontiers in Pharmacology · doi:10.3389/fphar.2013.00164 · Cited by 3
Dorofeeva, N. A., Nikitina, L. S., Glazova, M. V., Kirillova, O. D., & Chernigovskaya, E. V. (2013) · Journal of Evolutionary Biochemistry and Physiology · doi:10.1134/s0022093013020060 · Cited by 2
Tyrosine hydroxylase in the brain and its regulation by glucocorticoids
Sukhareva, E. V., Kalinina, T. S., Bulygina, V. V., & Дыгало, Н. Н. (2017) · Russian Journal of Genetics Applied Research · doi:10.1134/s2079059717030145 · Cited by 2
Bečanović, K., de Donno, M. V., Sousa, V. C., Tedroff, J., & Svenningsson, P. (2020) · Journal of Pharmacology and Experimental Therapeutics · doi:10.1124/jpet.119.264754 · Cited by 2
“Phosphorylation of TH at Ser40 increases TH activity, whereas phosphorylation at Ser31 also increases TH activity but to a lesser extent (Dunkley et al., 2004).”
BackgroundComparative analysis of the nigrostriatal system in Wistar rats and rats prone to seizures
Dorofeeva, N. A., Glazova, M. V., Khudik, K. A., Nikitina, L. S., Kirillova, O. D., & Chernigovskaya, E. V. (2015) · Journal of Evolutionary Biochemistry and Physiology · doi:10.1134/s0022093015030088 · Cited by 2
“On the other hand, ERK1/2 kinases can activate tyrosine hydroxylase via its phosphorylation at Ser-31 [16].”
Zosen, D., & Glazova, M. V. (2016) · Neuroscience and Behavioral Physiology · doi:10.1007/s11055-016-0277-y · Cited by 2
Chaube, R., & Kp, J. (2008) · PubMed · Cited by 2
Role of Glucocorticoid Receptor in the Relation between Stress and Opiate Addiction
Navarro‐Zaragoza, J., Milanés, M. V., & Laorden, M. L. (2020) · IntechOpen eBooks · doi:10.5772/intechopen.90839 · Cited by 1
“It is important to highlight that previous research has shown that ERK has a main role in the phosphorylation of TH at serine 31 in the NTS [53], supporting a synergic cooperation between the brain stress system, the noradrenergic system, and this pathway.”
Background
Metadata
- 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
- Semantic Scholar
- f10f568903c3e4d7cdc660f6816f0563cabf919f
- 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
- bronze
- doi.org
- 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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