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Akihisa Kamataki
Researcher at Tohoku University
Publications - 7
Citations - 882
Akihisa Kamataki is an academic researcher from Tohoku University. The author has contributed to research in topics: Peptide sequence & Fatty acid. The author has an hindex of 6, co-authored 6 publications receiving 841 citations.
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Journal ArticleDOI
Low-density lipoprotein receptor-related protein 5 (LRP5) is essential for normal cholesterol metabolism and glucose-induced insulin secretion
Takahiro Fujino,Hiroshi Asaba,Man Jong Kang,Yukio Ikeda,Hideyuki Sone,Shinji Takada,Shinji Takada,Dong Ho Kim,Ryoichi X. Ioka,Masao Ono,Hiroko Tomoyori,Minoru Okubo,Toshio Murase,Akihisa Kamataki,Joji Yamamoto,Kenta Magoori,Sadao Takahashi,Yoshiharu Miyamoto,Hisashi Oishi,Masato Nose,Mitsuyo Okazaki,Shinichi Usui,Katsumi Imaizumi,Masashi Yanagisawa,Juro Sakai,Tokuo T. Yamamoto +25 more
TL;DR: The data suggest that Wnt/LRP5 signaling contributes to the glucose-induced insulin secretion in the islets, which is also required for normal cholesterol and glucose metabolism.
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A novel acyl-CoA synthetase, ACS5, expressed in intestinal epithelial cells and proliferating preadipocytes.
Eisaku Oikawa,Hiroaki Iijima,Takashi Suzuki,Hironobu Sasano,Hiroyuki Sato,Akihisa Kamataki,Hiroshi Nagura,Man Jong Kang,Takahiro Fujino,Hiroyuki Suzuki,Tokuo T. Yamamoto +10 more
TL;DR: Rat acyl-CoA synthetase (ACS) designated as ACS5 consists of 683 amino acids and is approximately 60% identical to the previously characterized ACS1 and ACS2, but differed in its preference for C16-C18 unsaturated fatty acids.
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Severe Hypercholesterolemia, Impaired Fat Tolerance, and Advanced Atherosclerosis in Mice Lacking Both Low Density Lipoprotein Receptor-related Protein 5 and Apolipoprotein E *
Kenta Magoori,Man Jong Kang,Mitsuko R. Ito,Hajime Kakuuchi,Ryoichi X. Ioka,Akihisa Kamataki,Dong Ho Kim,Hiroshi Asaba,Satoshi Iwasaki,Yumiko A. Takei,Masako Sasaki,Shinichi Usui,Mitsuyo Okazaki,Sadao Takahashi,Masao Ono,Masato Nose,Juro Sakai,Takahiro Fujino,Tokuo T. Yamamoto +18 more
TL;DR: Analysis of plasma lipoproteins in mice lacking LRP5, apolipoprotein E (apoE), or both and histological examination revealed highly advanced arthrosclerosis, suggest that L RP5 mediates both apoE-dependent and apo E-independent catabolism of plasma lipid metabolism.
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Expression cloning and characterization of a novel glycosylphosphatidylinositol-anchored high density lipoprotein-binding protein, GPI-HBP1
Ryoichi X. Ioka,Man Jong Kang,Shin Kamiyama,Dong Ho Kim,Kenta Magoori,Akihisa Kamataki,Yuichiro Ito,Yumiko A. Takei,Masako Sasaki,Takashi Suzuki,Hironobu Sasano,Sadao Takahashi,Juro Sakai,Takahiro Fujino,Tokuo T. Yamamoto +14 more
TL;DR: This newly identified HDL-binding protein designated GPI-anchored HDL- binding protein 1 (GPI-HBP1), was susceptible to phosphatidylinositol-specific phospholipase C treatment and binds HDL with high affinity (calculated K d = 2–3 μg/ml).
Journal ArticleDOI
Molecular Identification and Characterization of Two Medium-chain Acyl-CoA Synthetases, MACS1 and the Sa Gene Product
Takahiro Fujino,Yumiko A. Takei,Hideyuki Sone,Ryoichi X. Ioka,Akihisa Kamataki,Kenta Magoori,Sadao Takahashi,Juro Sakai,Tokuo T. Yamamoto +8 more
TL;DR: Fatty acid incorporation studies indicated that acyl-CoAs produced by MACS1 and Sa protein are utilized mainly for oxidation, whereas isobutyrate is the most preferred fatty acid among C2–C6 fatty acids for Sa protein.