Dopamine biosynthesis is regulated by S-glutathionylation. Potential mechanism of tyrosine hydroxylast inhibition during oxidative stress.
Identifieur interne : 000F96 ( Main/Exploration ); précédent : 000F95; suivant : 000F97Dopamine biosynthesis is regulated by S-glutathionylation. Potential mechanism of tyrosine hydroxylast inhibition during oxidative stress.
Auteurs : Chad R. Borges [États-Unis] ; Timothy Geddes ; J Throck Watson ; Donald M. KuhnSource :
- The Journal of biological chemistry [ 0021-9258 ] ; 2002.
Descripteurs français
- KwdFr :
- Animaux (MeSH), Données de séquences moléculaires (MeSH), Dopamine (biosynthèse), Glutathion (métabolisme), RT-PCR (MeSH), Rats (MeSH), Spectrométrie de masse MALDI (MeSH), Stress oxydatif (MeSH), Séquence d'acides aminés (MeSH), Tyrosine 3-monooxygenase (antagonistes et inhibiteurs), Tétraméthyl-diazènedicarboxamide (pharmacologie).
- MESH :
- antagonistes et inhibiteurs : Tyrosine 3-monooxygenase.
- biosynthèse : Dopamine.
- métabolisme : Glutathion.
- pharmacologie : Tétraméthyl-diazènedicarboxamide.
- Animaux, Données de séquences moléculaires, RT-PCR, Rats, Spectrométrie de masse MALDI, Stress oxydatif, Séquence d'acides aminés.
English descriptors
- KwdEn :
- Amino Acid Sequence (MeSH), Animals (MeSH), Diamide (pharmacology), Dopamine (biosynthesis), Glutathione (metabolism), Molecular Sequence Data (MeSH), Oxidative Stress (MeSH), Rats (MeSH), Reverse Transcriptase Polymerase Chain Reaction (MeSH), Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization (MeSH), Tyrosine 3-Monooxygenase (antagonists & inhibitors).
- MESH :
- chemical , antagonists & inhibitors : Tyrosine 3-Monooxygenase.
- chemical , biosynthesis : Dopamine.
- chemical , metabolism : Glutathione.
- chemical , pharmacology : Diamide.
- Amino Acid Sequence, Animals, Molecular Sequence Data, Oxidative Stress, Rats, Reverse Transcriptase Polymerase Chain Reaction, Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization.
Abstract
Tyrosine hydroxylase (TH), the initial and rate-limiting enzyme in the biosynthesis of the neurotransmitter dopamine, is inhibited by the sulfhydryl oxidant diamide in a concentration-dependent manner. The inhibitory effect of diamide on TH catalytic activity is enhanced significantly by GSH. Treatment of TH with diamide in the presence of [(35)S]GSH results in the incorporation of (35)S into the enzyme. The effect of diamide-GSH on TH activity is prevented by dithiothreitol (DTT), as is the binding of [(35)S]GSH, indicating the formation of a disulfide linkage between GSH and TH protein cysteinyls. Loss of TH catalytic activity caused by diamide-GSH is partially recovered by DTT and glutaredoxin, whereas the disulfide linkage of GSH with TH is completely reversed by both. Treatment of intact PC12 cells with diamide results in a concentration-dependent inhibition of TH activity. Incubation of cells with [(35)S]cysteine, to label cellular GSH prior to diamide treatment, followed by immunoprecipitation of TH shows that the loss of TH catalytic activity is associated with a DTT-reversible incorporation of [(35)S]GSH into the enzyme. A combination of matrix-assisted laser desorption/ionization/mass spectrometry and liquid chromatography/tandem mass spectrometry was used to identify the sites of S-glutathionylation in TH. Six cysteines (177, 249, 263, 329, 330, and 380) of the seven cysteine residues in TH were confirmed as substrates for modification. Only Cys-311 was not S-glutathionylated. These results establish that TH activity is influenced in a reversible manner by S-glutathionylation and suggest that cellular GSH may regulate dopamine biosynthesis under conditions of oxidative stress or drug-induced toxicity.
DOI: 10.1074/jbc.M209042200
PubMed: 12376535
Affiliations:
Links toward previous steps (curation, corpus...)
Le document en format XML
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<affiliation wicri:level="4"><nlm:affiliation>Department of Biochemistry, Michigan State University, East Lansing 48824, USA.</nlm:affiliation>
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<author><name sortKey="Geddes, Timothy" sort="Geddes, Timothy" uniqKey="Geddes T" first="Timothy" last="Geddes">Timothy Geddes</name>
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<author><name sortKey="Watson, J Throck" sort="Watson, J Throck" uniqKey="Watson J" first="J Throck" last="Watson">J Throck Watson</name>
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<author><name sortKey="Kuhn, Donald M" sort="Kuhn, Donald M" uniqKey="Kuhn D" first="Donald M" last="Kuhn">Donald M. Kuhn</name>
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<sourceDesc><biblStruct><analytic><title xml:lang="en">Dopamine biosynthesis is regulated by S-glutathionylation. Potential mechanism of tyrosine hydroxylast inhibition during oxidative stress.</title>
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<affiliation wicri:level="4"><nlm:affiliation>Department of Biochemistry, Michigan State University, East Lansing 48824, USA.</nlm:affiliation>
<country xml:lang="fr">États-Unis</country>
<wicri:regionArea>Department of Biochemistry, Michigan State University, East Lansing 48824</wicri:regionArea>
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<author><name sortKey="Geddes, Timothy" sort="Geddes, Timothy" uniqKey="Geddes T" first="Timothy" last="Geddes">Timothy Geddes</name>
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<author><name sortKey="Watson, J Throck" sort="Watson, J Throck" uniqKey="Watson J" first="J Throck" last="Watson">J Throck Watson</name>
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<series><title level="j">The Journal of biological chemistry</title>
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<term>Animals (MeSH)</term>
<term>Diamide (pharmacology)</term>
<term>Dopamine (biosynthesis)</term>
<term>Glutathione (metabolism)</term>
<term>Molecular Sequence Data (MeSH)</term>
<term>Oxidative Stress (MeSH)</term>
<term>Rats (MeSH)</term>
<term>Reverse Transcriptase Polymerase Chain Reaction (MeSH)</term>
<term>Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization (MeSH)</term>
<term>Tyrosine 3-Monooxygenase (antagonists & inhibitors)</term>
</keywords>
<keywords scheme="KwdFr" xml:lang="fr"><term>Animaux (MeSH)</term>
<term>Données de séquences moléculaires (MeSH)</term>
<term>Dopamine (biosynthèse)</term>
<term>Glutathion (métabolisme)</term>
<term>RT-PCR (MeSH)</term>
<term>Rats (MeSH)</term>
<term>Spectrométrie de masse MALDI (MeSH)</term>
<term>Stress oxydatif (MeSH)</term>
<term>Séquence d'acides aminés (MeSH)</term>
<term>Tyrosine 3-monooxygenase (antagonistes et inhibiteurs)</term>
<term>Tétraméthyl-diazènedicarboxamide (pharmacologie)</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="antagonists & inhibitors" xml:lang="en"><term>Tyrosine 3-Monooxygenase</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="biosynthesis" xml:lang="en"><term>Dopamine</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Glutathione</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="pharmacology" xml:lang="en"><term>Diamide</term>
</keywords>
<keywords scheme="MESH" qualifier="antagonistes et inhibiteurs" xml:lang="fr"><term>Tyrosine 3-monooxygenase</term>
</keywords>
<keywords scheme="MESH" qualifier="biosynthèse" xml:lang="fr"><term>Dopamine</term>
</keywords>
<keywords scheme="MESH" qualifier="métabolisme" xml:lang="fr"><term>Glutathion</term>
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<keywords scheme="MESH" qualifier="pharmacologie" xml:lang="fr"><term>Tétraméthyl-diazènedicarboxamide</term>
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<keywords scheme="MESH" xml:lang="en"><term>Amino Acid Sequence</term>
<term>Animals</term>
<term>Molecular Sequence Data</term>
<term>Oxidative Stress</term>
<term>Rats</term>
<term>Reverse Transcriptase Polymerase Chain Reaction</term>
<term>Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization</term>
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<keywords scheme="MESH" xml:lang="fr"><term>Animaux</term>
<term>Données de séquences moléculaires</term>
<term>RT-PCR</term>
<term>Rats</term>
<term>Spectrométrie de masse MALDI</term>
<term>Stress oxydatif</term>
<term>Séquence d'acides aminés</term>
</keywords>
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<front><div type="abstract" xml:lang="en">Tyrosine hydroxylase (TH), the initial and rate-limiting enzyme in the biosynthesis of the neurotransmitter dopamine, is inhibited by the sulfhydryl oxidant diamide in a concentration-dependent manner. The inhibitory effect of diamide on TH catalytic activity is enhanced significantly by GSH. Treatment of TH with diamide in the presence of [(35)S]GSH results in the incorporation of (35)S into the enzyme. The effect of diamide-GSH on TH activity is prevented by dithiothreitol (DTT), as is the binding of [(35)S]GSH, indicating the formation of a disulfide linkage between GSH and TH protein cysteinyls. Loss of TH catalytic activity caused by diamide-GSH is partially recovered by DTT and glutaredoxin, whereas the disulfide linkage of GSH with TH is completely reversed by both. Treatment of intact PC12 cells with diamide results in a concentration-dependent inhibition of TH activity. Incubation of cells with [(35)S]cysteine, to label cellular GSH prior to diamide treatment, followed by immunoprecipitation of TH shows that the loss of TH catalytic activity is associated with a DTT-reversible incorporation of [(35)S]GSH into the enzyme. A combination of matrix-assisted laser desorption/ionization/mass spectrometry and liquid chromatography/tandem mass spectrometry was used to identify the sites of S-glutathionylation in TH. Six cysteines (177, 249, 263, 329, 330, and 380) of the seven cysteine residues in TH were confirmed as substrates for modification. Only Cys-311 was not S-glutathionylated. These results establish that TH activity is influenced in a reversible manner by S-glutathionylation and suggest that cellular GSH may regulate dopamine biosynthesis under conditions of oxidative stress or drug-induced toxicity.</div>
</front>
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<Title>The Journal of biological chemistry</Title>
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<ArticleTitle>Dopamine biosynthesis is regulated by S-glutathionylation. Potential mechanism of tyrosine hydroxylast inhibition during oxidative stress.</ArticleTitle>
<Pagination><MedlinePgn>48295-302</MedlinePgn>
</Pagination>
<Abstract><AbstractText>Tyrosine hydroxylase (TH), the initial and rate-limiting enzyme in the biosynthesis of the neurotransmitter dopamine, is inhibited by the sulfhydryl oxidant diamide in a concentration-dependent manner. The inhibitory effect of diamide on TH catalytic activity is enhanced significantly by GSH. Treatment of TH with diamide in the presence of [(35)S]GSH results in the incorporation of (35)S into the enzyme. The effect of diamide-GSH on TH activity is prevented by dithiothreitol (DTT), as is the binding of [(35)S]GSH, indicating the formation of a disulfide linkage between GSH and TH protein cysteinyls. Loss of TH catalytic activity caused by diamide-GSH is partially recovered by DTT and glutaredoxin, whereas the disulfide linkage of GSH with TH is completely reversed by both. Treatment of intact PC12 cells with diamide results in a concentration-dependent inhibition of TH activity. Incubation of cells with [(35)S]cysteine, to label cellular GSH prior to diamide treatment, followed by immunoprecipitation of TH shows that the loss of TH catalytic activity is associated with a DTT-reversible incorporation of [(35)S]GSH into the enzyme. A combination of matrix-assisted laser desorption/ionization/mass spectrometry and liquid chromatography/tandem mass spectrometry was used to identify the sites of S-glutathionylation in TH. Six cysteines (177, 249, 263, 329, 330, and 380) of the seven cysteine residues in TH were confirmed as substrates for modification. Only Cys-311 was not S-glutathionylated. These results establish that TH activity is influenced in a reversible manner by S-glutathionylation and suggest that cellular GSH may regulate dopamine biosynthesis under conditions of oxidative stress or drug-induced toxicity.</AbstractText>
</Abstract>
<AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Borges</LastName>
<ForeName>Chad R</ForeName>
<Initials>CR</Initials>
<AffiliationInfo><Affiliation>Department of Biochemistry, Michigan State University, East Lansing 48824, USA.</Affiliation>
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<ForeName>Donald M</ForeName>
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<CommentsCorrectionsList><CommentsCorrections RefType="ErratumIn"><RefSource>J Biol Chem. 2003 Jan 31;278(5):3407</RefSource>
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<MeshHeading><DescriptorName UI="D003958" MajorTopicYN="N">Diamide</DescriptorName>
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<MeshHeading><DescriptorName UI="D004298" MajorTopicYN="N">Dopamine</DescriptorName>
<QualifierName UI="Q000096" MajorTopicYN="Y">biosynthesis</QualifierName>
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<MeshHeading><DescriptorName UI="D005978" MajorTopicYN="N">Glutathione</DescriptorName>
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<MeshHeading><DescriptorName UI="D008969" MajorTopicYN="N">Molecular Sequence Data</DescriptorName>
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<name sortKey="Kuhn, Donald M" sort="Kuhn, Donald M" uniqKey="Kuhn D" first="Donald M" last="Kuhn">Donald M. Kuhn</name>
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<country name="États-Unis"><region name="Michigan"><name sortKey="Borges, Chad R" sort="Borges, Chad R" uniqKey="Borges C" first="Chad R" last="Borges">Chad R. Borges</name>
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