Evidence map›Paper›PMID 21858244›Full record

ArticleACS medicinal chemistry letters2011

Truncated (N)-Methanocarba Nucleosides as A(1) Adenosine Receptor Agonists and Partial Agonists: Overcoming Lack of a Recognition Element.

Dilip K Tosh, Khai Phan, Francesca Deflorian, Qiang Wei, Zhan-Guo Gao, Kenneth A Jacobson

Open access · greenAbstract read
In one paragraph

Article in ACS medicinal chemistry letters, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.4field-weighted citation impact, top 21% 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

12 citing papers in PubMed, 16 citations in OpenAlex.

  1. Review
  2. Article
  3. Design and in Vivo Characterization of AJournal of medicinal chemistry · 2019
    Article
  4. Article
  5. Exploring the Role of NJournal of medicinal chemistry · 2017
    Article
  6. Adenosine-associated delivery systems.Journal of drug targeting · 2015
    Review
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. 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

6 authors at 2 institutions in 1 country.

Dilip K ToshMolecular Recognition Section, Laboratory of Bioorganic Chemistry, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland 20892, USA.
Khai Phan
Francesca Deflorian
Qiang Wei
Zhan-Guo Gao
Kenneth A Jacobson
National Institute of Diabetes and Digestive and Kidney Diseases · USNational Institutes of Health · US

Funding

Development Of Drugs Acting At Adenosine ReceptorsZIADK031117 · NIDDK · NATIONAL INSTITUTE OF DIABETES AND DIGESTIVE AND KIDNEY DISEASES · PI JACOBSON, KENNETH ALAN · 2009 to 2025
$10.4M
Computer Modeling of G Protein-Coupled ReceptorsZIADK031126 · NIDDK · NATIONAL INSTITUTE OF DIABETES AND DIGESTIVE AND KIDNEY DISEASES · PI JACOBSON, KENNETH ALAN · 2009 to 2025
$6.6M
Intramural NIH HHS Z99 DK999999Intramural NIH HHS ZIA DK031117Intramural NIH HHS ZIA DK031126
6 · The paper itself

Abstract

A(1) adenosine receptor (AR) agonists are neuroprotective, cardioprotective, and anxiolytic. (N)-Methanocarba adenine nucleosides designed to bind to human A(1)AR were truncated to eliminate 5'-CH(2)OH. This modification previously converted A(3)AR agonists into antagonists, but the comparable effect at A(1)AR is unknown. In comparison to ribosides, affinity at the A(1)AR was less well preserved than at the A(3)AR, although a few derivatives were moderately A(1)AR selective, notably full agonist 21 (N(6)-dicyclopropylmethyl, K(i) 47.9 nM). Thus, at the A(1)AR recognition elements for nucleoside binding depend more on 5'region interactions, and in their absence A(3)AR selectivity predominates. Based on the recently reported agonist-bound AR structure, this difference between subtypes likely correlates with an essential His residue in transmembrane domain 6 of A(1) but not A(3)AR. The derivatives ranged from partial to full agonists in A(1)AR-mediated adenylate cyclase inhibition. Truncated derivatives have more drug-like physical properties than other A(1)AR agonists; this approach is appealing for preclinical development.

Identifiers

PMID21858244
PMCPMC3156476
OpenAlexW2003686515

What OpenQuestion holds

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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.