Evidence map›Paper›PMID 11344298›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2001

Crystal structures of the vitamin D receptor complexed to superagonist 20-epi ligands.

G Tocchini-Valentini, N Rochel, J M Wurtz, A Mitschler, D Moras

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers.

0numbers the graph read from it
0cells of the map it votes in
48citing 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

48 citing papers in PubMed.

  1. Article
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  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Design, Synthesis, Evaluation and Structure of Allenic 1α,25-Dihydroxyvitamin DChemistry (Weinheim an der Bergstrasse, Germany) · 2021
    Article
  12. Article
  13. Article
  14. Article
  15. Vitamin D and Its Synthetic Analogs.Journal of medicinal chemistry · 2019
    Review
  16. Vitamins D: Relationship between Structure and Biological Activity.International journal of molecular sciences · 2018
    Review
  17. Article
  18. Review
  19. Review
  20. Review
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

5 authors.

G Tocchini-ValentiniLaboratoire de Biologie et Génomique Structurales, Institut de Génétique et de Biologie Moléculaire et Cellulaire, Centre National de la Recherche Scientifique/Institut National de la Santé et de la Recherche Médicale/Université Louis Pasteur, France.
N Rochel
J M Wurtz
A Mitschler
D Moras

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The crystal structures of the ligand-binding domain (LBD) of the vitamin D receptor complexed to 1alpha,25(OH)(2)D(3) and the 20-epi analogs, MC1288 and KH1060, show that the protein conformation is identical, conferring a general character to the observation first made for retinoic acid receptor (RAR) that, for a given LBD, the agonist conformation is unique, the ligands adapting to the binding pocket. In all complexes, the A- to D-ring moieties of the ligands adopt the same conformation and form identical contacts with the protein. Differences are observed only for the 17beta-aliphatic chains that adapt their conformation to anchor the 25-hydroxyl group to His-305 and His-397. The inverted geometry of the C20 methyl group induces different paths of the aliphatic chains. The ligands exhibit a low-energy conformation for MC1288 and a more strained conformation for the two others. KH1060 compensates this energy cost by additional contacts. Based on the present data, the explanation of the superagonist effect is to be found in higher stability and longer half-life of the active complex, thereby excluding different conformations of the ligand binding domain.

Indexed as

CalcitriolCrystallography, X-RayHumansLigandsModels, MolecularProtein ConformationReceptors, CalcitriolCalcitriolLigandsReceptors, Calcitriol

Identifiers

PMID11344298
PMCPMC33240

What OpenQuestion holds

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Read underepoch 390

Registered trials

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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.