Cited by 102Phosphodiesterase function and regulationNitric Oxide and Endothelin EffectsReceptor Mechanisms and Signaling

New insight into the functioning of nitric oxide-receptive guanylyl cyclase: physiological and pharmacological implications

Garthwaite, John·2010·Molecular and Cellular Biochemistry

Abstract

The cellular counterpart of the "soluble" guanylyl cyclase found in tissue homogenates over 30 years ago is now recognized as the physiological receptor for nitric oxide (NO). The ligand-binding site is a prosthetic haem group that, when occupied by NO, induces a conformational change in the protein that propagates to the catalytic site, triggering conversion of GTP into cGMP. This review focuses on recent research that takes this basic information forward to the beginnings of a quantitative depiction of NO signal transduction, analogous to that achieved for other major transmitters. At its foundation is an explicit enzyme-linked receptor mechanism for NO-activated guanylyl cyclase that replicates all its main properties. In cells, NO signal transduction is subject to additional, activity-dependent modifications, notably through receptor desensitization and changes in the activity of cGMP-hydrolyzing phosphodiesterases. The measurement of these parameters under varying conditions in rat platelets has made it possible to formulate a cellular model of NO-cGMP signaling. The model helps explain cellular responses to NO and their modification by therapeutic agents acting on the guanylyl cyclase or phosphodiesterase limbs of the pathway.

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Crossref · 10.1007/s11010-009-0318-8

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Authors
Garthwaite, J.
Affiliations
University College London (GB)
Corresponding author
Garthwaite, John
Venue
Molecular and Cellular Biochemistry
Published
2009-12-11
Volume
334
Issue
1-2
Pages
221-232
ISSN
  • 0300-8177 (ISSN-L)
  • 1573-4919
OpenAlex
W2006132439
Cited by
102
References
99
Citations by year
2025: 2 · 2024: 2 · 2023: 3 · 2022: 3 · 2021: 4 · 2020: 2 · 2019: 4 · 2018: 9 · 2017: 6 · 2016: 9 · 2015: 9 · 2014: 8 · 2013: 8 · 2012: 11
FWCI
0.84
Type
journal article
Language
en
Open access
closed
Locations
  • Molecular and Cellular Biochemistry (publishedVersion)
  • PubMed (publishedVersion)
  • UCL Discovery (University College London) (submittedVersion)
Funders
Wellcome Trust (081512/Z/06/Z)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Phosphodiesterase function and regulation
  • Health Sciences › Medicine › Physiology › Nitric Oxide and Endothelin Effects
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Receptor Mechanisms and Signaling
Keywords
soluble guanylate cyclase, nitric oxide signaling, cyclic GMP, conformational change, receptor desensitization, phosphodiesterase, platelets
MeSH terms
Soluble Guanylyl Cyclase, Animals, Cyclic GMP, Guanylate Cyclase, Signal Transduction, Receptors, Cytoplasmic and Nuclear, Rats

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