An expression system for Gustatory receptors - and why it failed
- PMID: 25975755
- PMCID: PMC4594606
- DOI: 10.1080/19336934.2015.1039756
An expression system for Gustatory receptors - and why it failed
Abstract
A recent paper by the Dahankuar laboratory suggested that single Drosophila sugar receptors proteins accurately mediate sugar detection when ectopically expressed in olfactory neurons of the antenna. These findings contra-dict numerous previously published electrophysiological and behavioral investigations, which all point towards heteromultimeric sugar taste receptors. Here, I provide some explanation why this "pseudo-heterologous" expression system may have led to this misleading conclusion.
Keywords: Gr Genes; expression system; heterodimers; olfactony learning and memory; olfactory neuron; taste receptors.
Comment on
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Detection of sweet tastants by a conserved group of insect gustatory receptors.Proc Natl Acad Sci U S A. 2014 Jan 28;111(4):1598-603. doi: 10.1073/pnas.1311724111. Epub 2014 Jan 13. Proc Natl Acad Sci U S A. 2014. PMID: 24474785 Free PMC article.
References
-
- Freeman EG, Wisotsky Z, Dahanukar A. Detection of sweet tastants by a conserved group of insect gustatory receptors. Proc Natl Acad Sci U S A 2014; 111:1598-603; PMID:24474785; http://dx.doi.org/10.1073/pnas.1311724111 - DOI - PMC - PubMed
-
- Sanchez-Gracia A, Vieira FG, Rozas J. Molecular evolution of the major chemosensory gene families in insects. Heredity (Edinb) 2009; 103:208-16; PMID:19436326; http://dx.doi.org/10.1038/hdy.2009.55 - DOI - PubMed
-
- Kwon JY, Dahanukar A, Weiss LA, Carlson JR. The molecular basis of CO2 reception in Drosophila. Proc Natl Acad Sci U S A 2007; 104:3574-8; PMID:17360684; http://dx.doi.org/10.1073/pnas.0700079104 - DOI - PMC - PubMed
-
- Jones WD, Cayirlioglu P, Kadow IG, Vosshall LB. Two chemosensory receptors together mediate carbon dioxide detection in Drosophila. Nature 2007; 445:86-90; PMID:17167414; http://dx.doi.org/10.1038/nature05466 - DOI - PubMed
-
- Slone J, Daniels J, Amrein H. Sugar receptors in Drosophila. Curr Biol 2007; 17:1809-16; PMID:17919910; http://dx.doi.org/10.1016/j.cub.2007.09.027 - DOI - PMC - PubMed
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