Cited by 136Amino Acid Enzymes and MetabolismNeuroscience and Neuropharmacology ResearchNitric Oxide and Endothelin Effects

Nitric oxide S -nitrosylates serine racemase, mediating feedback inhibition of d -serine formation

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Mustafa, Asif K., Kumar, Manish, Selvakumar, Balakrishnan, Ho, Gary P. H., Ehmsen, Jeffrey T., Barrow, Roxanne K., Amzel, L. Mario, Snyder, Solomon H.·2007·Proceedings of the National Academy of Sciences

Abstract

Serine racemase (SR) generates D-serine, a coagonist with glutamate at NMDA receptors. We show that SR is physiologically S-nitrosylated leading to marked inhibition of enzyme activity. Inhibition involves interactions with the cofactor ATP reflecting juxtaposition of the ATP-binding site and cysteine-113 (C113), the site for physiological S-nitrosylation. NMDA receptor physiologically enhances SR S-nitrosylation by activating neuronal nitric-oxide synthase (nNOS). These findings support a model whereby postsynaptic stimulation of nitric-oxide (NO) formation feeds back to presynaptic cells to S-nitrosylate SR and decrease D-serine availability to postsynaptic NMDA receptors.

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Authors
Mustafa, A. K., Kumar, M., Selvakumar, B., Ho, G. P. H., Ehmsen, J. T., Barrow, R. K., Amzel, L. M., & Snyder, S. H.
Affiliations
  • *Solomon H. Snyder Department of Neuroscience and
  • Departments of †Biophysics and Biophysical Chemistry,
  • Johns Hopkins University (US)
Venue
Proceedings of the National Academy of Sciences
Published
2007-02-20
Volume
104
Issue
8
Pages
2950-2955
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2147808921
Cited by
136
References
21
Citations by year
2026: 2 · 2025: 1 · 2023: 1 · 2022: 6 · 2021: 3 · 2020: 6 · 2019: 3 · 2018: 8 · 2017: 7 · 2016: 9 · 2015: 8 · 2014: 12 · 2013: 12 · 2012: 13
FWCI
5.63
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institute of Mental Health (R01MH018501, R37MH018501, MH-18501)
  • National Institute on Drug Abuse (DA 00074, K05DA000074)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biochemistry › Amino Acid Enzymes and Metabolism
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Health Sciences › Medicine › Physiology › Nitric Oxide and Endothelin Effects
Keywords
serine racemase, S-nitrosylation, D-serine, NMDA receptor co-agonist, product inhibition, ATP binding site, neuronal nitric oxide synthase, nitric oxide, presynaptic modulation
MeSH terms
Serine Racemase, Adenosine Triphosphate, Amino Acid Sequence, Animals, Coenzymes, Cysteine, Enzyme Activation, Humans, Models, Molecular, Models, Neurological, Molecular Sequence Data, Nitric Oxide, Serine, Receptors, N-Methyl-D-Aspartate, Racemases and Epimerases, Feedback, Physiological, S-Nitrosoglutathione, Mice, Nitric Oxide Synthase Type I

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