2010 Fiscal Year Final Research Report
Molecular physiological study on diversity of rhodopsins and their cooperative function.
| Project/Area Number |
19207006
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Animal physiology/Animal behavior
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| Research Institution | Osaka City University |
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Principal Investigator |
TERAKITA Akihisa Osaka City University, 大学院・理学研究科, 教授 (30212062)
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| Co-Investigator(Kenkyū-buntansha) |
KOYANAGI Mitsumasa 大阪市立大学, 大学院・理学研究科, 准教授 (30379276)
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| Project Period (FY) |
2007 – 2010
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| Keywords | ロドプシ / 光受容 / シグナル伝達 / 視覚 / 非視覚 / 多様性 / 動物生理化学 |
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| Research Abstract |
In this study, we found a novel rhodopsin and a novel light-signaling system in eyes of cnidarian, which is one of most primitive animals withdeveloped eyes, suggesting an evolutional linkage between rhodopsins and photoreceptorcell-types. We also comparatively analyzed rhodopsins in pineal organs of lowervertebrates and suggested that vertebrate visual pigments might promote molecularevolution of light-signaling proteins. In addition, our analyses on lizard parietal eyessuggest that two kinds of rhodopsins co-operatively function in a single photoreceptor cell.
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