Evidence map›Paper›PMID 22009742›Full record

ArticleThe Journal of biological chemistry2011

Dynamic ligand exchange in soluble guanylyl cyclase (sGC): implications for sGC regulation and desensitization.

Ah-Lim Tsai, Vladimir Berka, Iraida Sharina, Emil Martin

Abstract read
In one paragraph

Article in The Journal of biological chemistry, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

37 citing papers in PubMed.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Review
  6. Article
  7. Article
  8. Review
  9. Structure and reactivity of chlorite dismutase nitrosyls.Journal of inorganic biochemistry · 2020
    Article
  10. Article
  11. Review
  12. Article
  13. Thrombospondins: A Role in Cardiovascular Disease.International journal of molecular sciences · 2017
    Review
  14. Engineering proximalChemical science · 2017
    Article
  15. Article
  16. Review
  17. Review
  18. Endothelium-dependent vasodilation effects ofExperimental and therapeutic medicine · 2016
    Article
  19. Can erythrocytes release biologically active NO?Cell communication and signaling : CCS · 2016
    Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

Ah-Lim TsaiDivisions of Hematology, University of Texas Health Science Center in Houston, Medical School, Houston, Texas 77030, USA. ah-lim.tsai@uth.tmc.edu
Vladimir Berka
Iraida Sharina
Emil Martin

Funding

Soluble guanylyl cyclase modulation by endogenous elements and exogenous factorsR01HL088128 · NHLBI · UNIVERSITY OF TEXAS HLTH SCI CTR HOUSTON · PI MARTIN, EMIL · 2008 to 2012
$2.1M
Radical Intermediates of Nitric Oxide Synthase & Myocardial Ischemia ReperfusionR01HL095820 · NHLBI · UNIVERSITY OF TEXAS HLTH SCI CTR HOUSTON · PI TSAI, AH-LIM · 2010 to 2013
$1.8M
REGULATION OF C-MYB PROTOONCOGENE EXPRESSIONF32HL008812 · NHLBI · NATIONAL JEWISH HEALTH · PI PATEL, HIREN R · 1992 to 1994
–
NHLBI NIH HHS HL088128NHLBI NIH HHS HL088128SNHLBI NIH HHS HL095820NHLBI NIH HHS R01 HL088128NHLBI NIH HHS R01 HL095820
6 · The paper itself

Abstract

Accumulating evidence indicates that the functional properties of soluble guanylyl cyclase (sGC) are affected not only by the binding of NO but also by the NO:sGC ratio and a number of cellular factors, including GTP. In this study, we monitored the time-resolved transformations of sGC and sGC-NO complexes generated with stoichiometric or excess NO in the presence and absence of GTP. We demonstrate that the initial five-coordinate sGC-NO complex is highly activated by stoichiometric NO but is unstable and transforms into a five-coordinate sGC-2 state. This sGC-2 rebinds NO to form a low activity sGC-NO complex. The stability of the initial complex is greatly enhanced by GTP binding, binding of an additional NO molecule, or substitution of βHis-107. We propose that the transient nature of the sGC-NO complex, the formation of a desensitized sGC-2 state, and its transformation into a low activity sGC-NO adduct require βHis-107. We conclude that conformational changes leading to sGC desensitization may be prevented by GTP binding to the catalytic site or by binding of an additional NO molecule to the proximal side of the heme. The implications of these observations for cellular NO/cGMP signaling and the process of rapid desensitization of sGC are discussed in the context of the proposed model of sGC/NO interactions and dynamic transformations.

Indexed as

AnimalsCell LineCyclic GMPGuanylate CyclaseHemeHumansModels, BiologicalNitric OxideProtein BindingReceptors, Cytoplasmic and NuclearSignal TransductionSoluble Guanylyl CyclaseSpodopteraCyclic GMPGuanylate CyclaseHemeNitric OxideReceptors, Cytoplasmic and NuclearSoluble Guanylyl Cyclase

Identifiers

PMID22009742
PMCPMC3234846

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.