Evidence map›Paper›PMID 12574113›Full record

ArticleThe EMBO journal2003

Structural basis for endothelial nitric oxide synthase binding to calmodulin.

Mika Aoyagi, Andrew S Arvai, John A Tainer, Elizabeth D Getzoff

Erratum issuedAbstract read
In one paragraph

Article in The EMBO journal, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 72 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
72citing papers in PubMed, 1 pooled it
–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

72 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Review
  4. Article
  5. The Ever-Expanding Influence of the Endothelial Nitric Oxide Synthase.Basic & clinical pharmacology & toxicology · 2025
    Review
  6. Article
  7. Article
  8. Article
  9. Review
  10. Review
  11. Review
  12. Article
  13. Article
  14. Article
  15. Review
  16. Review
  17. Article
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  19. Review
  20. Article

12 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

  • Erratum issued
5 · Who and what money

Authors and funding

4 authors.

Mika AoyagiDepartment of Molecular Biology and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, La Jolla, CA 92037, USA.
Andrew S Arvai
John A Tainer
Elizabeth D Getzoff

Funding

STRUCTURAL METALLOBIOCHEMISTRY OF NITRIC OXIDE SYNTHASESR01HL058883 · NHLBI · SCRIPPS RESEARCH INSTITUTE, THE · PI GETZOFF, ELIZABETH D · 1997 to 2011
$4.6M
NHLBI NIH HHS HL58883NHLBI NIH HHS R01 HL058883
6 · The paper itself

Abstract

The enzyme nitric oxide synthase (NOS) is exquisitely regulated in vivo by the Ca(2+) sensor protein calmodulin (CaM) to control production of NO, a key signaling molecule and cytotoxin. The differential activation of NOS isozymes by CaM has remained enigmatic, despite extensive research. Here, the crystallographic structure of Ca(2+)-loaded CaM bound to a 20 residue peptide comprising the endothelial NOS (eNOS) CaM-binding region establishes their individual conformations and intermolecular interactions, and suggests the basis for isozyme-specific differences. The alpha-helical eNOS peptide binds in an antiparallel orientation to CaM through extensive hydrophobic interactions. Unique NOS interactions occur with: (i). the CaM flexible central linker, explaining its importance in NOS activation; and (ii). the CaM C-terminus, explaining the NOS-specific requirement for a bulky, hydrophobic residue at position 144. This binding mode expands mechanisms for CaM-mediated activation, explains eNOS deactivation by Thr495 phosphorylation, and implicates specific hydrophobic residues in the Ca(2+) independence of inducible NOS.

Indexed as

Amino Acid SequenceAnimalsBinding SitesCalciumCalmodulinCrystallography, X-RayEndotheliumEnzyme ActivationIsoenzymesMolecular Sequence DataNitric Oxide SynthaseNitric Oxide Synthase Type IIIPhosphorylationProtein BindingProtein ConformationRatsCalciumCalmodulinIsoenzymesNitric Oxide SynthaseNitric Oxide Synthase Type IIINos3 protein, rat

Identifiers

PMID12574113
PMCPMC145438

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.