Evidence map›Paper›PMID 19581598›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2009

Large-scale production and study of a synthetic G protein-coupled receptor: human olfactory receptor 17-4.

Brian L Cook, Dirk Steuerwald, Liselotte Kaiser, Johanna Graveland-Bikker, Melanie Vanberghem, Allison P Berke, Kara Herlihy, Horst Pick, Horst Vogel, Shuguang Zhang

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed
3.2field-weighted citation impact, top 8% 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

46 citing papers in PubMed, 101 citations in OpenAlex.

  1. Review
  2. Antagonists Enhance Cell-Surface Expression of Mammalian Odorant Receptors.International journal of molecular sciences · 2025
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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

10 authors at 2 institutions in 2 countries.

Brian L CookDepartment of Biological Engineering, and Center for Biomedical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139-4307, USA. cookb@mit.edu
Dirk Steuerwald
Liselotte Kaiser
Johanna Graveland-Bikker
Melanie Vanberghem
Allison P Berke
Kara Herlihy
Horst Pick
Horst Vogel
Shuguang Zhang
Massachusetts Institute of Technology · USÉcole Polytechnique Fédérale de Lausanne · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Although understanding of the olfactory system has progressed at the level of downstream receptor signaling and the wiring of olfactory neurons, the system remains poorly understood at the molecular level of the receptors and their interaction with and recognition of odorant ligands. The structure and functional mechanisms of these receptors still remain a tantalizing enigma, because numerous previous attempts at the large-scale production of functional olfactory receptors (ORs) have not been successful to date. To investigate the elusive biochemistry and molecular mechanisms of olfaction, we have developed a mammalian expression system for the large-scale production and purification of a functional OR protein in milligram quantities. Here, we report the study of human OR17-4 (hOR17-4) purified from a HEK293S tetracycline-inducible system. Scale-up of production yield was achieved through suspension culture in a bioreactor, which enabled the preparation of >10 mg of monomeric hOR17-4 receptor after immunoaffinity and size exclusion chromatography, with expression yields reaching 3 mg/L of culture medium. Several key post-translational modifications were identified using MS, and CD spectroscopy showed the receptor to be approximately 50% alpha-helix, similar to other recently determined G protein-coupled receptor structures. Detergent-solubilized hOR17-4 specifically bound its known activating odorants lilial and floralozone in vitro, as measured by surface plasmon resonance. The hOR17-4 also recognized specific odorants in heterologous cells as determined by calcium ion mobilization. Our system is feasible for the production of large quantities of OR necessary for structural and functional analyses and research into OR biosensor devices.

Indexed as

Biological AssayBioreactorsCalciumCell LineDetergentsHumansIntracellular SpaceProtein BindingProtein Processing, Post-TranslationalReceptors, G-Protein-CoupledReceptors, OdorantSeminal Plasma ProteinsSolubilitySpectrum AnalysisSurface Plasmon ResonanceCalciumDetergentsOR1D2 protein, humanReceptors, G-Protein-CoupledReceptors, OdorantSeminal Plasma Proteins

Identifiers

PMID19581598
PMCPMC2715541
OpenAlexW2121477971

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.