Evidence map›Paper›PMID 25068303›Full record

ArticlePloS one2014

Efficient expression of functional (α6β2)2β3 AChRs in Xenopus oocytes from free subunits using slightly modified α6 subunits.

Carson Kai-Kwong Ley, Alexander Kuryatov, Jingyi Wang, Jon Martin Lindstrom

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
0.9field-weighted citation impact, top 28% 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

9 citing papers in PubMed, 11 citations in OpenAlex.

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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 at 1 institution in 1 country.

Carson Kai-Kwong LeyDepartment of Neuroscience, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, United States of America.
Alexander KuryatovDepartment of Neuroscience, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, United States of America.
Jingyi WangDepartment of Neuroscience, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, United States of America.
Jon Martin LindstromDepartment of Neuroscience, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, United States of America.
University of Pennsylvania · US

Funding

Development of a5* nAChR positive allosteric modulators for tobacco dependenceR01DA030929 · NIDA · SCRIPPS RESEARCH INSTITUTE, THE · PI KENNY, PAUL J., LINDSTROM, JON MARTIN · 2011 to 2015
$7.1M
STUDIES USING PURIFIED ACETYLCHOLINE RECEPTORSR01NS011323 · NINDS · UNIVERSITY OF PENNSYLVANIA · PI LINDSTROM, JON MARTIN · 1985 to 2012
$5.0M
NIDA NIH HHS R01 DA030929NINDS NIH HHS NS11323NINDS NIH HHS R01 NS011323
6 · The paper itself

Abstract

Human (α6β2)(α4β2)β3 nicotinic acetylcholine receptors (AChRs) are essential for addiction to nicotine and a target for drug development for smoking cessation. Expressing this complex AChR is difficult, but has been achieved using subunit concatamers. In order to determine what limits expression of α6* AChRs and to efficiently express α6* AChRs using free subunits, we investigated expression of the simpler (α6β2)2β3 AChR. The concatameric form of this AChR assembles well, but is transported to the cell surface inefficiently. Various chimeras of α6 with the closely related α3 subunit increased expression efficiency with free subunits and produced pharmacologically equivalent functional AChRs. A chimera in which the large cytoplasmic domain of α6 was replaced with that of α3 increased assembly with β2 subunits and transport of AChRs to the oocyte surface. Another chimera replacing the unique methionine 211 of α6 with leucine found at this position in transmembrane domain 1 of α3 and other α subunits increased assembly of mature subunits containing β3 subunits within oocytes. Combining both α3 sequences in an α6 chimera increased expression of functional (α6β2)2β3 AChRs to 12-fold more than with concatamers. This is pragmatically useful, and provides insights on features of α6 subunit structure that limit its expression in transfected cells.

Indexed as

AcetylcholineAlkaloidsAnimalsAtropineAzocinesCholinergic AgonistsFemaleGene ExpressionHumansMembrane PotentialsNicotineNicotinic AgonistsOocytesPatch-Clamp TechniquesQuinolizidine AlkaloidsQuinolizinesAcetylcholineAlkaloidsAtropineAzocinesCholinergic AgonistsCHRNA6 protein, humanCHRNB3 protein, humancytisineNicotineNicotinic AgonistsQuinolizidine AlkaloidsQuinolizinesReceptors, NicotinicRecombinant Fusion ProteinsVarenicline

Identifiers

PMID25068303
PMCPMC4113361
OpenAlexW2033235415

What OpenQuestion holds

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LicenceCC BY
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.