Expression of taurine transporter in response to hypo-osmotic stress in the mantle of Mediterranean blue mussel |
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Authors: | Email author" target="_blank">Haruhiko?ToyoharaEmail author Marika?Yoshida Masatomi?Hosoi Isao?Hayashi |
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Institution: | (1) Division of Applied Biosciences, Graduate School of Agriculture, Kyoto University, 606-8502 Kyoto, Japan;(2) Present address: Recruit Co. Ltd, Ginza, 104-0061 Tokyo, Japan |
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Abstract: | Expression of taurine transporter in response to osmotic stress was investigated at the protein level in the mantle of the
Mediterranean blue mussel by using the specific antibody raised against the carboxy-terminal region of the deduced amino acid
sequence of mussel taurine transporter. Immunohistochemical observation revealed that taurine transporter was expressed in
the mantle and the expression was up-regulated in response to hypo-osmotic stress, while down-regulated in response to hyper-osmotic
stress. Western blot analysis revealed major protein bands corresponding to 62 kDa and 65 kDa. In response to hypo-osmotic
stress, the 62 kDa band became more intense, while it became less intense when the ambient osmolality was elevated. These
results suggested that the 62 kDa taurine transporter would be implicated in hypo-osmotic adaptation. |
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Keywords: | mantle Mediterranean blue mussel Mytilus galloprovincialis osmolality taurine transporter |
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