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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Cloning and genetic characterization of an evolutionarily conserved human olfactory receptor that is differentially expressed across species.

We have cloned the full-length cDNA and genomic region of a human prostate specific G-protein coupled receptor with properties characteristic of an olfactory receptor. A partial cDNA sequence of this gene, called PSGR, was recently cloned. The gene contains two exons and one intron of 14.9 kb in its 5'untranslated region, and was mapped to human chromosome 11p15. 2. A cluster of transcription initiation sites for the 2.8 kb PSGR mRNA was identified. Cloning of the homologous gene from the mouse revealed 93% amino acid homology between the human and mouse or rat (previously cloned as RA1c) proteins, and 99% identity between the rat and mouse homologs. Although northern analysis indicated expression of the human PSGR homolog was prostate specific, its mRNA could also be detected in the olfactory zone and the medulla oblongata of the human brain. In the mouse, the PSGR gene is predominantly expressed in the brain and colon. In the rat, the PSGR homolog is expressed in the liver in addition to the brain. These data add to the growing body of evidence suggesting that olfactory receptors may have functional roles in tissues other than the olfactory organ, and further, suggest that these functions may vary across species.[1]

References

  1. Cloning and genetic characterization of an evolutionarily conserved human olfactory receptor that is differentially expressed across species. Yuan, T.T., Toy, P., McClary, J.A., Lin, R.J., Miyamoto, N.G., Kretschmer, P.J. Gene (2001) [Pubmed]
 
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