Genomic analysis of the murine odorant receptor MOR28 cluster: a possible role of gene conversion in maintaining the olfactory map |
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| Authors: | Nagawa Fumikiyo Yoshihara Sei-ichi Tsuboi Akio Serizawa Shou Itoh Keita Sakano Hitoshi |
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| Affiliation: | Department of Biophysics and Biochemistry, Graduate School of Science, The University of Tokyo, 2-11-16 Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan. snagawa@mail.ecc.u-tokyo.ac.jp |
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| Abstract: | Genomic analysis was performed for the murine odorant receptor (OR) genes. The MOR28 cluster on chromosome 14 was extensively studied. It contains six OR genes, MOR28, 10, 83, 29A, 29B and 30. The human homolog of this cluster is located on the human chromosome 14, and contains five OR genes, HOR28/10, 83, 29A, 29B and 30. Sequence comparison of these OR gene paralogs and orthologs suggests that the coding homologies are accounted for not only by recent gene duplication, but also by gene conversion among the coding sequences within the cluster. A possible role of gene conversion in the olfactory system is discussed in the context of the olfactory map. |
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