T
Takashi Kumasaka
Researcher at Tokyo Institute of Technology
Publications - 179
Citations - 12950
Takashi Kumasaka is an academic researcher from Tokyo Institute of Technology. The author has contributed to research in topics: Beamline & SPring-8. The author has an hindex of 42, co-authored 166 publications receiving 12036 citations. Previous affiliations of Takashi Kumasaka include Chiba Institute of Technology & Osaka Bioscience Institute.
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Journal ArticleDOI
Crystal Structure of Rhodopsin: A G Protein-Coupled Receptor
Krzysztof Palczewski,Takashi Kumasaka,Tetsuya Hori,Craig A. Behnke,H. Motoshima,Brian A. Fox,I. Le Trong,David C. Teller,Tetsuji Okada,Ronald E. Stenkamp,Masaki Yamamoto,Masashi Miyano +11 more
TL;DR: This article determined the structure of rhodopsin from diffraction data extending to 2.8 angstroms resolution and found that the highly organized structure in the extracellular region, including a conserved disulfide bridge, forms a basis for the arrangement of the sevenhelix transmembrane motif.
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Structural basis of glutamate recognition by a dimeric metabotropic glutamate receptor
Naoki Kunishima,Yoshimi Shimada,Yuji Tsuji,Toshihiro Sato,Masaki Yamamoto,Takashi Kumasaka,Shigetada Nakanishi,Hisato Jingami,Kosuke Morikawa +8 more
TL;DR: Three different crystal structures of the extracellular ligand-binding region of mGluR1 are determined—in a complex with glutamate and in two unliganded forms, implying that glutamate binding stabilizes both the ‘active’ dimer and the ’closed’ protomer in dynamic equilibrium.
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Structure of the bacterial flagellar protofilament and implications for a switch for supercoiling.
Fadel A. Samatey,Katsumi Imada,Shigehiro Nagashima,Ferenc Vonderviszt,Takashi Kumasaka,Masaki Yamamoto,Keiichi Namba +6 more
TL;DR: By simulated extension of the protofilament model, it is identified possible switch regions responsible for the bi-stable mechanical switch that generates the 0.8 Å difference in repeat distance.
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Crystal structure of an orthologue of the NaChBac voltage-gated sodium channel
Xu Zhang,Wenlin Ren,Paul G. DeCaen,Chuangye Yan,Xiao Tao,Lin（唐琳） Tang,Jingjing Wang,Kazuya Hasegawa,Takashi Kumasaka,Jianhua（何建华） He,Jiawei Wang,David E. Clapham,Nieng Yan +12 more
TL;DR: The crystal structure of NavRh, a NaChBac orthologue from the marine alphaproteobacterium HIMB114, is reported, and it is proposed that NavRh is in an ‘inactivated’ conformation, which may underlie the electromechanical coupling mechanism of voltage-gated channels.
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Self-assembly of tetravalent Goldberg polyhedra from 144 small components
TL;DR: In this paper, the authors used graph theory to predict the self-assembly of even larger tetravalent Goldberg polyhedra, which should be more stable, enabling another member of this polyhedron family to be assembled from 144 components: 48 palladium ions and 96 bent ligands.