Evidence map›Paper›PMID 22191644›Full record

ArticleJournal of medicinal chemistry2012

Neurosteroid analogues. 17. Inverted binding orientations of androsterone enantiomers at the steroid potentiation site on γ-aminobutyric acid type A receptors.

Kathiresan Krishnan, Brad D Manion, Amanda Taylor, John Bracamontes, Joseph H Steinbach, David E Reichert, Alex S Evers, Charles F Zorumski, Steven Mennerick, Douglas F Covey

Open access · greenAbstract read
In one paragraph

Article in Journal of medicinal chemistry, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
0.8field-weighted citation impact, top 34% of its field
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

15 citing papers in PubMed, 25 citations in OpenAlex.

  1. New directions in neurosteroid therapeutics in neuropsychiatry.Neuroscience and biobehavioral reviews · 2025
    Review
  2. Article
  3. Article
  4. Neurosteroid enantiomers as potentially novel neurotherapeutics.Neuroscience and biobehavioral reviews · 2023
    Review
  5. Synthetic studies on the indane SHIP1 agonist AQX-1125.Organic & biomolecular chemistry · 2022
    Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. 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

10 authors at 2 institutions in 1 country.

Kathiresan KrishnanDepartment of Developmental Biology, Washington University, St. Louis School of Medicine, St. Louis, Missouri 63110, United States.
Brad D Manion
Amanda Taylor
John Bracamontes
Joseph H Steinbach
David E Reichert
Alex S Evers
Charles F Zorumski
Steven Mennerick
Douglas F Covey
Saint Louis University · USWashington University in St. Louis · US

Funding

STRUCTURE/ACTIVITY STUDIES OF NEUROSTEROID ANALOGUESP01GM047969 · NIGMS · WASHINGTON UNIVERSITY · PI COVEY, DOUGLAS F · 1992 to 2011
$18.7M
NIGMS NIH HHS GM47969NIGMS NIH HHS P01 GM047969
6 · The paper itself

Abstract

The enantiomer pair androsterone and ent-androsterone are positive allosteric modulators of γ-aminobutyric acid (GABA) type A receptors. Each enantiomer was shown to bind at the same receptor site. Binding orientations of the enantiomers at this site were deduced using enantiomer pairs containing OBn substituents at either C-7 or C-11. 11β-OBn-substituted steroids and 7α-OBn-substituted ent-steroids potently displace [(35)S]-tert-butylbicyclophosphorothionate, augment GABA currents, and anesthetize tadpoles. In contrast, 7β-OBn-substituted steroids and 11α-OBn-substituted ent-steroids have diminished actions. The results suggest that the binding orientations of the active analogues are inverted relative to each other with the 7α- and 11β-substituents similarly located on the edges of the molecules not in contact with the receptor surface. Analogue potentiation of the GABA current was abrogated by an α(1) subunit Q241L mutation, indicating that the active analogues act at the same sites in α(1)β(2)γ(2L) receptors previously associated with positive neurosteroid modulation.

Indexed as

Allosteric SiteAndrosteroneAnimalsBinding, CompetitiveBrainFemaleIn Vitro TechniquesLarvaModels, MolecularNeurotransmitter AgentsOocytesPatch-Clamp TechniquesProtein BindingRadioligand AssayRatsReceptors, GABA-AAndrosteroneNeurotransmitter AgentsReceptors, GABA-A

Identifiers

PMID22191644
PMCPMC3276733
OpenAlexW1986166766

What OpenQuestion holds

Textmetadata
LicenceTDM
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.