@article{oai:kumadai.repo.nii.ac.jp:00027692, author = {吉川, 裕美 and 清水, 英介 and 川原, 浩一 and 國安, 明彦 and 芝野, 俊郎 and 中山, 仁 and Yoshikawa, Hiromi and Shimizu, Eisuke and Kawahara, Kohichi and Kuniyasu, Akihiko and Shibano, Toshiro and 中山, 仁 and Nakayama, Hitoshi}, issue = {2}, journal = {Heterocycles}, month = {}, note = {application/pdf, 論文(Article), To clarify the recognition site of (S)-semotiadil in the Na+ channels, we employed photoaffinity labeling with (S)-[3H]-D51-4700, an azidophenyl derivative of (S)-semotiadil, to Na+ channel preparations from rat brains and porcine hearts, and the results were compared with those by (R)-enantiomer to skeletal muscle Ca2+ channel. Protease-digestion of the photolabeled Na+ channels followed by quantitative immunoprecipitation assay using a site-directed antibody, revealed that 10- and 13- kDa fargments of brain and cardiac Na+ channels, respectively, were located within the regions including IVS6. These regions are corresponding to the 8.3 kDa fragment photolabled by (R)-[3H]-D51- 4700 in the skeletal muscle Ca2+ channel. Interestingly, however, the photoincorporation of (S)-[3H]-D51-4700 into the Na+ channel was 2-3 times higher than that of (R)-isomer; and visa versa in the Ca2+ channels., http://www.heterocycles.jp/newlibrary/libraries/abst/00997}, pages = {613--622}, title = {Photochemical identification of the binding region for (S)-semotiadil on sodium channels: Comparison with that for (R)-semotiadil on skeletal muscle calcium channel}, volume = {59}, year = {2003}, yomi = {ナカヤマ, ヒトシ} }