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MATSUNAGA Yasuhiro
Mathematics, Electronics and Informatics DivisionAssociate Professor
Department of Information and Computer Sciences

Researcher information

■ Degree
  • D. Sci., Kobe University
■ Research Keyword
  • Molecular simulation
  • Free energy calculation
  • Data assimilation
  • Molecular Dynamics
  • Nonlinear Science
  • Biophysics
■ Field Of Study
  • Informatics, Computational science
  • Life sciences, Biophysics
■ Career
  • Apr. 2019 - Present, Saitama University, Graduate School of Science and Engineering
  • Oct. 2016 - Mar. 2020, JST PRESTO
  • Apr. 2018 - Mar. 2019
  • Nov. 2015 - Oct. 2018, Kobe University, Graduate School of System Informatics
  • Apr. 2014 - Mar. 2018, RIKEN, Advanced Institute for Computational Science, Research Scientist
  • Apr. 2011 - Mar. 2014, RIKEN Advanced Institute for Computational Science, Special Postdoctoral Researcher
  • Apr. 2008 - Mar. 2011, RIKEN, Researcher
  • Jul. 2007 - Mar. 2008, Yokohama City University, Researcher
  • Apr. 2007 - Jun. 2007, Kobe University, Researcher
  • Apr. 2004 - Mar. 2006, Japan Society for the Promotion of Science (JSPS), Research Fellow
■ Educational Background
  • Apr. 2003 - Mar. 2007, Kobe University, Graduate School of Science and Technology, Department of Information and Media Science
  • Apr. 2001 - Mar. 2003, Kobe University, Graduate School of Science and Technology
  • Apr. 1997 - Mar. 2001, Kobe University, Faculty of Science, Department of Earth and Planetary Sciences
■ Award
  • Jul. 2017, 卓越研究員事業 卓越研究員候補者
  • Jun. 2016, 若手奨励賞・優秀賞
  • Oct. 2014, HPCIシステム利用研究課題優秀成果賞
  • Feb. 2011, Cutting Edge Award
  • Oct. 2009, ポスター発表優秀賞
  • Mar. 2001, ポスター賞

Performance information

■ Paper
  • Explicit description of viral capsid subunit shapes by unfolding dihedrons               
    Ryuya Toyooka; Seri Nishimoto; Tomoya Tendo; Takashi Horiyama; Tomohiro Tachi; Yasuhiro Matsunaga
    Communications Biology, Nov. 2024, [Reviewed]
    Scientific journal
    DOI:https://doi.org/10.1038/s42003-024-07218-x
    DOI ID:10.1038/s42003-024-07218-x, ORCID:171737880
  • GENESIS 2.1: High-Performance Molecular Dynamics Software for Enhanced Sampling and Free-Energy Calculations for Atomistic, Coarse-Grained, and Quantum Mechanics/Molecular Mechanics Models               
    Jaewoon Jung; Kiyoshi Yagi; Cheng Tan; Hiraku Oshima; Takaharu Mori; Isseki Yu; Yasuhiro Matsunaga; Chigusa Kobayashi; Shingo Ito; Diego Ugarte La Torre; Yuji Sugita
    The Journal of Physical Chemistry B, Jun. 2024, [Reviewed], [Invited]
    Scientific journal
    DOI:https://doi.org/10.1021/acs.jpcb.4c02096
    DOI ID:10.1021/acs.jpcb.4c02096, ORCID:161636064
  • Representation of Protein Dynamics Disentangled by Time-Structure-Based Prior
    Tsuyoshi Ishizone; Yasuhiro Matsunaga; Sotaro Fuchigami; Kazuyuki Nakamura
    Journal of Chemical Theory and Computation, Volume:20, Number:1, First page:436, Last page:450, Dec. 2023, [Reviewed]
    American Chemical Society (ACS), Scientific journal
    DOI:https://doi.org/10.1021/acs.jctc.3c01025
    DOI ID:10.1021/acs.jctc.3c01025, ISSN:1549-9618, eISSN:1549-9626
  • End-to-end differentiable blind tip reconstruction for noisy atomic force microscopy images.               
    Yasuhiro Matsunaga; Sotaro Fuchigami; Tomonori Ogane; Shoji Takada
    Scientific reports, Volume:13, Number:1, First page:129, Last page:129, Jan. 2023, [Reviewed], [International magazine]
    Observing the structural dynamics of biomolecules is vital to deepening our understanding of biomolecular functions. High-speed (HS) atomic force microscopy (AFM) is a powerful method to measure biomolecular behavior at near physiological conditions. In the AFM, measured image profiles on a molecular surface are distorted by the tip shape through the interactions between the tip and molecule. Once the tip shape is known, AFM images can be approximately deconvolved to reconstruct the surface geometry of the sample molecule. Thus, knowing the correct tip shape is an important issue in the AFM image analysis. The blind tip reconstruction (BTR) method developed by Villarrubia (J Res Natl Inst Stand Technol 102:425, 1997) is an algorithm that estimates tip shape only from AFM images using mathematical morphology operators. While the BTR works perfectly for noise-free AFM images, the algorithm is susceptible to noise. To overcome this issue, we here propose an alternative BTR method, called end-to-end differentiable BTR, based on a modern machine learning approach. In the method, we introduce a loss function including a regularization term to prevent overfitting to noise, and the tip shape is optimized with automatic differentiation and backpropagations developed in deep learning frameworks. Using noisy pseudo-AFM images of myosin V motor domain as test cases, we show that our end-to-end differentiable BTR is robust against noise in AFM images. The method can also detect a double-tip shape and deconvolve doubled molecular images. Finally, application to real HS-AFM data of myosin V walking on an actin filament shows that the method can reconstruct the accurate surface geometry of actomyosin consistent with the structural model. Our method serves as a general post-processing for reconstructing hidden molecular surfaces from any AFM images. Codes are available at https://github.com/matsunagalab/differentiable_BTR .
    Springer Science and Business Media {LLC}, English, Scientific journal
    DOI:https://doi.org/10.1038/s41598-022-27057-2
    DOI ID:10.1038/s41598-022-27057-2, ISSN:2045-2322, ORCID:125877151, PubMed ID:36599879
  • Development of hidden Markov modeling method for molecular orientations and structure estimation from high-speed atomic force microscopy time-series images.               
    Tomonori Ogane; Daisuke Noshiro; Toshio Ando; Atsuko Yamashita; Yuji Sugita; Yasuhiro Matsunaga
    PLoS computational biology, Volume:18, Number:12, First page:e1010384, Dec. 2022, [Reviewed], [International magazine]
    High-speed atomic force microscopy (HS-AFM) is a powerful technique for capturing the time-resolved behavior of biomolecules. However, structural information in HS-AFM images is limited to the surface geometry of a sample molecule. Inferring latent three-dimensional structures from the surface geometry is thus important for getting more insights into conformational dynamics of a target biomolecule. Existing methods for estimating the structures are based on the rigid-body fitting of candidate structures to each frame of HS-AFM images. Here, we extend the existing frame-by-frame rigid-body fitting analysis to multiple frames to exploit orientational correlations of a sample molecule between H frames in HS-AFM data due to the interaction with the stage. In the method, we treat HS-AFM data as time-series data, and they are analyzed with the hidden Markov modeling. Using simulated HS-AFM images of the taste receptor type 1 as a test case, the proposed method shows a more robust estimation of molecular orientations than the frame-by-frame analysis. The method is applicable in integrative modeling of conformational dynamics using HS-AFM data.
    English, Scientific journal
    DOI:https://doi.org/10.1371/journal.pcbi.1010384
    DOI ID:10.1371/journal.pcbi.1010384, PubMed ID:36580448, PubMed Central ID:PMC9833559
  • Use of multistate Bennett acceptance ratio method for free-energy calculations from enhanced sampling and free-energy perturbation               
    Yasuhiro Matsunaga; Motoshi Kamiya; Hiraku Oshima; Jaewoon Jung; Shingo Ito; Yuji Sugita
    Biophysical Reviews, Dec. 2022, [Reviewed]
    AbstractMultistate Bennett acceptance ratio (MBAR) works as a method to analyze molecular dynamics (MD) simulation data after the simulations have been finished. It is widely used to estimate free-energy changes between different states and averaged properties at the states of interest. MBAR allows us to treat a wide range of states from those at different temperature/pressure to those with different model parameters. Due to the broad applicability, the MBAR equations are rather difficult to apply for free-energy calculations using different types of MD simulations including enhanced conformational sampling methods and free-energy perturbation. In this review, we first summarize the basic theory of the MBAR equations and categorize the representative usages into the following four: (i) perturbation, (ii) scaling, (iii) accumulation, and (iv) full potential energy. For each, we explain how to prepare input data using MD simulation trajectories for solving the MBAR equations. MBAR is also useful to estimate reliable free-energy differences using MD trajectories based on a semi-empirical quantum mechanics/molecular mechanics (QM/MM) model and ab initio QM/MM energy calculations on the MD snapshots. We also explain how to use the MBAR software in the GENESIS package, which we call mbar_analysis, for the four representative cases. The proposed estimations of free-energy changes and thermodynamic averages are effective and useful for various biomolecular systems.
    Springer Science and Business Media {LLC}, English, Scientific journal
    DOI:https://doi.org/10.1007/s12551-022-01030-9
    DOI ID:10.1007/s12551-022-01030-9, ISSN:1867-2450, ORCID:125877041
  • Construction of a Humanized Artificial VHH Library Reproducing Structural Features of Camelid VHHs for Therapeutics
    Taihei Murakami; Shigefumi Kumachi; Yasuhiro Matsunaga; Miwa Sato; Kanako Wakabayashi-Nakao; Hidekazu Masaki; Ryo Yonehara; Maiko Motohashi; Naoto Nemoto; MASAYUKI TSUCHIYA
    Antibodies, Volume:11, Number:1, First page:10, Last page:10, Jan. 2022
    A variable domain of heavy chain antibody (VHH) has different binding properties than conventional antibodies. Conventional antibodies prefer binding to the convex portion of the antigen, whereas VHHs prefer epitopes, such as crevices and clefts on the antigen. Therefore, developing candidates with the binding characteristics of camelid VHHs is important. Thus, To this end, a synthetic VHH library that reproduces the structural properties of camelid VHHs was constructed. First, the characteristics of VHHs were classified according to the paratope formation based on crystal structure analyses of the complex structures of VHHs and antigens. Then, we classified 330 complementarity-determining region 3 (CDR3) structures of VHHs from the Protein Data Bank (PDB) into three loop structures: Upright, Half-Roll, and Roll. Moreover, these structures depended on the number of amino acid residues within CDR3. Furthermore, in the Upright loops, several amino acid residues in the FR2 are involved in the paratope formation, along with CDR3, suggesting that the FR2 design in the synthetic library is important. A humanized synthetic VHH library, comprising two sub-libraries, Upright and Roll, was constructed and named PharmaLogical. A validation study confirmed that our PharmaLogical library reproduces VHHs with the characteristics of the paratope formation of the camelid VHHs, and shows good performance in VHH screening.
    MDPI AG, Scientific journal
    DOI:https://doi.org/10.3390/antib11010010
    DOI ID:10.3390/antib11010010, eISSN:2073-4468, ORCID:107604526
  • Enhanced Conformational Sampling of Nanobody CDR H3 Loop by Generalized Replica-Exchange with Solute Tempering
    Ren Higashida; Yasuhiro Matsunaga
    Life, Volume:11, Number:12, First page:1428, Last page:1428, Dec. 2021
    The variable domains of heavy-chain antibodies, known as nanobodies, are potential substitutes for IgG antibodies. They have similar affinities to antigens as antibodies, but are more heat resistant. Their small size allows us to exploit computational approaches for structural modeling or design. Here, we investigate the applicability of an enhanced sampling method, a generalized replica-exchange with solute tempering (gREST) for sampling CDR-H3 loop structures of nanobodies. In the conventional replica-exchange methods, temperatures of only a whole system or scaling parameters of a solute molecule are selected for temperature or parameter exchange. In gREST, we can flexibly select a part of a solute molecule and a part of the potential energy terms as a parameter exchange region. We selected the CDR-H3 loop and investigated which potential energy term should be selected for the efficient sampling of the loop structures. We found that the gREST with dihedral terms can explore a global conformational space, but the relaxation to the global equilibrium is slow. On the other hand, gREST with all the potential energy terms can sample the equilibrium distribution, but the structural exploration is slower than with dihedral terms. The lessons learned from this study can be applied to future studies of loop modeling.
    MDPI AG, Scientific journal
    DOI:https://doi.org/10.3390/life11121428
    DOI ID:10.3390/life11121428, eISSN:2075-1729, ORCID:105204808
  • Structural and energetic analysis of metastable intermediate states in the E1P–E2P transition of Ca2+-ATPase
    Chigusa Kobayashi; Yasuhiro Matsunaga; Jaewoon Jung; Yuji Sugita
    Proceedings of the National Academy of Sciences, Volume:118, Number:40, First page:e2105507118, Last page:e2105507118, Oct. 2021
    Sarcoplasmic reticulum (SR) Ca2+-ATPase transports two Ca2+ ions from the cytoplasm to the SR lumen against a large concentration gradient. X-ray crystallography has revealed the atomic structures of the protein before and after the dissociation of Ca2+, while biochemical studies have suggested the existence of intermediate states in the transition between E1P⋅ADP⋅2Ca2+ and E2P. Here, we explore the pathway and free energy profile of the transition using atomistic molecular dynamics simulations with the mean-force string method and umbrella sampling. The simulations suggest that a series of structural changes accompany the ordered dissociation of ADP, the A-domain rotation, and the rearrangement of the transmembrane (TM) helices. The luminal gate then opens to release Ca2+ ions toward the SR lumen. Intermediate structures on the pathway are stabilized by transient sidechain interactions between the A- and P-domains. Lipid molecules between TM helices play a key role in the stabilization. Free energy profiles of the transition assuming different protonation states suggest rapid exchanges between Ca2+ ions and protons when the Ca2+ ions are released toward the SR lumen.
    Proceedings of the National Academy of Sciences, Scientific journal
    DOI:https://doi.org/10.1073/pnas.2105507118
    DOI ID:10.1073/pnas.2105507118, ISSN:0027-8424, eISSN:1091-6490
  • Coarse-Grained Modeling of Multiple Pathways in Conformational Transitions of Multi-Domain Proteins               
    Ai Shinobu; Chigusa Kobayashi; Yasuhiro Matsunaga; Yuji Sugita
    Journal of Chemical Information and Modeling, Volume:61, Number:5, First page:2427, Last page:2443, May 2021
    American Chemical Society (ACS), Scientific journal
    DOI:https://doi.org/10.1021/acs.jcim.1c00286
    DOI ID:10.1021/acs.jcim.1c00286, ISSN:1549-9596, eISSN:1549-960X, DBLP ID:journals/jcisd/ShinobuKMS21
  • Rigid-body fitting to atomic force microscopy images for inferring probe shape and biomolecular structure.               
    Toru Niina; Yasuhiro Matsunaga; Shoji Takada
    PLoS Computational Biology, Volume:17, Number:7, 2021
    Scientific journal
    DOI:https://doi.org/10.1371/journal.pcbi.1009215
    DOI ID:10.1371/journal.pcbi.1009215, DBLP ID:journals/ploscb/NiinaMT21
  • Weighted ensemble simulations for conformational changes of proteins
    Hiroshi Fujisaki; Yasuhiro Matsunaga; Kei Moritsugu
    INTERNATIONAL CONFERENCE OF COMPUTATIONAL METHODS IN SCIENCES AND ENGINEERING ICCMSE 2020, 2021
    AIP Publishing, International conference proceedings
    DOI:https://doi.org/10.1063/5.0047730
    DOI ID:10.1063/5.0047730
  • Use of single-molecule time-series data for refining conformational dynamics in molecular simulations               
    Yasuhiro Matsunaga; Yuji Sugita
    Current Opinion in Structural Biology, Volume:61, First page:153, Last page:159, Apr. 2020
    Elsevier {BV}, English, Scientific journal
    DOI:https://doi.org/10.1016/j.sbi.2019.12.022
    DOI ID:10.1016/j.sbi.2019.12.022, ISSN:0959-440X, ORCID:125877227
  • Drug Transport Mechanism of Multidrug Transporter AcrB Studied by Molecular Dynamics Simulations
    Yasuhiro MATSUNAGA
    Seibutsu Butsuri, Volume:59, Number:2, First page:084, Last page:087, 2019
    Biophysical Society of Japan, Scientific journal
    DOI:https://doi.org/10.2142/biophys.59.084
    DOI ID:10.2142/biophys.59.084, ISSN:0582-4052, eISSN:1347-4219
  • Building a macro-mixing dual‑basin Gō model using the Multistate Bennett Acceptance Ratio
    Ai Shinobu; Chigusa Kobayashi; Yasuhiro Matsunaga; Yuji Sugita
    Biophysics and Physicobiology, Volume:16, Number:0, First page:310, Last page:321, 2019
    Biophysical Society of Japan, Scientific journal
    DOI:https://doi.org/10.2142/biophysico.16.0_310
    DOI ID:10.2142/biophysico.16.0_310, eISSN:2189-4779
  • Exploring Configuration Space and Path Space of Biomolecules Using Enhanced Sampling Techniques—Searching for Mechanism and Kinetics of Biomolecular Functions               
    H. Fujisaki; K. Moritsugu; Y. Matsunaga
    International Journal of Molecular Sciences, Volume:19, Number:10, First page:3177 (19 pages), Oct. 2018, [Reviewed], [Invited], [International magazine]
    To understand functions of biomolecules such as proteins, not only structures but their conformational change and kinetics need to be characterized, but its atomistic details are hard to obtain both experimentally and computationally. Here, we review our recent computational studies using novel enhanced sampling techniques for conformational sampling of biomolecules and calculations of their kinetics. For efficiently characterizing the free energy landscape of a biomolecule, we introduce the multiscale enhanced sampling method, which uses a combined system of atomistic and coarse-grained models. Based on the idea of Hamiltonian replica exchange, we can recover the statistical properties of the atomistic model without any biases. We next introduce the string method as a path search method to calculate the minimum free energy pathways along a multidimensional curve in high dimensional space. Finally we introduce novel methods to calculate kinetics of biomolecules based on the ideas of path sampling: one is the Onsager⁻Machlup action method, and the other is the weighted ensemble method. Some applications of the above methods to biomolecular systems are also discussed and illustrated.
    English, Scientific journal
    DOI:https://doi.org/10.3390/ijms19103177
    DOI ID:10.3390/ijms19103177, PubMed ID:30326661, PubMed Central ID:PMC6213965
  • Linking time-series of single-molecule experiments with molecular dynamics simulations by machine learning               
    Matsunaga, Yasuhiro; Sugita, Yuji
    Elife, Volume:7, First page:e32668 (19 pages), May 2018, [Reviewed]
    English, Scientific journal
    DOI:https://doi.org/10.7554/e.Life.32668
    DOI ID:10.7554/e.Life.32668, ORCID:51182310, Web of Science ID:WOS:000431288400001
  • Refining Markov state models for conformational dynamics using ensemble-averaged data and time-series trajectories               
    Matsunaga, Y.; Sugita, Y.
    Journal of Chemical Physics, Volume:148, Number:24, First page:241731 (7 pages), Apr. 2018, [Reviewed], [Invited]
    English, Scientific journal
    DOI:https://doi.org/10.1063/1.5019750
    DOI ID:10.1063/1.5019750, ORCID:51182312, Web of Science ID:WOS:000437190300034
  • Energetics and conformational pathways of functional rotation in the multidrug transporter AcrB               
    Y. Matsunaga; T. Yamane; T. Terada; K. Moritsugu; H. Fujisaki; S. Murakami; M. Ikeguchi; A. Kidera
    eLife, Volume:7, First page:e31715 (19 pages), Mar. 2018, [Reviewed]
    English, Scientific journal
    DOI:https://doi.org/10.7554/eLife.31715
    DOI ID:10.7554/eLife.31715, ISSN:2050-084X, Web of Science ID:WOS:000426766300001
  • Molecular Dynamics Simulations for Conformational Changes on a Reaction Step of SR-Ca2+ -ATPase               
    Kobayashi, Chigusa; Matsunaga, Yasuhiro; Jung, Jaewoon; Sugita, Yuji
    Biophysical Journal, Volume:114, Number:3, 2018
    Scientific journal
    ORCID:51182311, Web of Science ID:WOS:000430450000202
  • Combining Weighted Ensemble Method and Lyapunov Weighted Dynamics: Application to Proteins               
    Fujisaki, Hiroshi; Moritsugu, Kei; Matsunaga, Yasuhiro; Suetani, Hiromichi
    Biophysical Journal, Volume:114, Number:3, 2018
    Scientific journal
    ORCID:51182307, Web of Science ID:WOS:000430563300377
  • GENESIS 1.1: A hybrid-parallel molecular dynamics simulator with enhanced sampling algorithms on multiple computational platforms               
    C. Kobayashi; J. Jung; Y. Matsunaga; T. Mori; T. Ando; K. Tamura; M. Kamiya; Y. Sugita
    Journal of Computational Chemistry, Volume:38, Number:25, First page:2193, Last page:2206, Jul. 2017, [Reviewed]
    English, Scientific journal
    DOI:https://doi.org/10.1002/jcc.24874
    DOI ID:10.1002/jcc.24874, DBLP ID:journals/jcc/KobayashiJMMATK17
  • Dimensionality of Collective Variables for Describing Conformational Changes of a Multi-Domain Protein               
    Yasuhiro Matsunaga; Yasuaki Komuro; Chigusa Kobayashi; Jaewoon Jung; Takaharu Mori; Yuji Sugita
    JOURNAL OF PHYSICAL CHEMISTRY LETTERS, Volume:7, Number:8, First page:1446, Last page:1451, Apr. 2016, [Reviewed]
    English, Scientific journal
    DOI:https://doi.org/10.1021/acs.jpclett.6b00317
    DOI ID:10.1021/acs.jpclett.6b00317, ISSN:1948-7185, Web of Science ID:WOS:000374810800007
  • Domain Motion Enhanced (DoME) Model for Efficient Conformational Sampling of Multidomain Proteins               
    Chigusa Kobayashi; Yasuhiro Matsunaga; Ryotaro Koike; Motonori Ota; Yuji Sugita
    JOURNAL OF PHYSICAL CHEMISTRY B, Volume:119, Number:46, First page:14584, Last page:14593, Nov. 2015, [Reviewed]
    English, Scientific journal
    DOI:https://doi.org/10.1021/acs.jpcb.5b07668
    DOI ID:10.1021/acs.jpcb.5b07668, ISSN:1520-6106, Web of Science ID:WOS:000365463200003
  • GENESIS: a hybrid-parallel and multi-scale molecular dynamics simulator with enhanced sampling algorithms for biomolecular and cellular simulations               
    Jaewoon Jung; Takaharu Mori; Chigusa Kobayashi; Yasuhiro Matsunaga; Takao Yoda; Michael Feig; Yuji Sugita
    WILEY INTERDISCIPLINARY REVIEWS-COMPUTATIONAL MOLECULAR SCIENCE, Volume:5, Number:4, First page:310, Last page:323, Jul. 2015, [Reviewed]
    English, Scientific journal
    DOI:https://doi.org/10.1002/wcms.1220
    DOI ID:10.1002/wcms.1220, ISSN:1759-0876, eISSN:1759-0884, Web of Science ID:WOS:000356605600002
  • Sequential data assimilation for single-molecule FRET photon-counting data               
    Yasuhiro Matsunaga; Akinori Kidera; Yuji Sugita
    JOURNAL OF CHEMICAL PHYSICS, Volume:142, Number:21, First page:214115, Jun. 2015, [Reviewed]
    English, Scientific journal
    DOI:https://doi.org/10.1063/1.4921983
    DOI ID:10.1063/1.4921983, ISSN:0021-9606, eISSN:1089-7690, Web of Science ID:WOS:000355931800071
  • Extended phase-space methods for enhanced sampling in molecular simulations: A review
    Hiroshi Fujisaki; Kei Moritsugu; Yasuhiro Matsunaga; Tetsuya Morishita; Luca Maragliano
    Frontiers in Bioengineering and Biotechnology, Volume:3, First page:125, 2015, [Reviewed]
    Frontiers Media S.A., English, Scientific journal
    DOI:https://doi.org/10.3389/fbioe.2015.00125
    DOI ID:10.3389/fbioe.2015.00125, ISSN:2296-4185, SCOPUS ID:84978048228
  • Spatio-temporal hierarchy in the dynamics of a minimalist protein model               
    Yasuhiro Matsunaga; Akinori Baba; Chun-Biu Li; John E. Straub; Mikito Toda; Tamiki Komatsuzaki; R. Stephen Berry
    JOURNAL OF CHEMICAL PHYSICS, Volume:139, Number:21, First page:215101, Dec. 2013, [Reviewed]
    English, Scientific journal
    DOI:https://doi.org/10.1063/1.4834415
    DOI ID:10.1063/1.4834415, ISSN:0021-9606, eISSN:1089-7690, Web of Science ID:WOS:000328636400048
  • Influence of Structural Symmetry on Protein Dynamics               
    Yasuhiro Matsunaga; Ryotaro Koike; Motonori Ota; Jeremy R. H. Tame; Akinori Kidera
    PLOS ONE, Volume:7, Number:11, First page:e50011, Nov. 2012, [Reviewed]
    English, Scientific journal
    DOI:https://doi.org/10.1371/journal.pone.0050011
    DOI ID:10.1371/journal.pone.0050011, ISSN:1932-6203, Web of Science ID:WOS:000311929800053
  • Minimum Free Energy Path of Ligand-Induced Transition in Adenylate Kinase               
    Yasuhiro Matsunaga; Hiroshi Fujisaki; Tohru Terada; Tadaomi Furuta; Kei Moritsugu; Akinori Kidera
    PLOS COMPUTATIONAL BIOLOGY, Volume:8, Number:6, First page:e1002555, Jun. 2012, [Reviewed]
    English, Scientific journal
    DOI:https://doi.org/10.1371/journal.pcbi.1002555
    DOI ID:10.1371/journal.pcbi.1002555, ISSN:1553-734X, eISSN:1553-7358, DBLP ID:journals/ploscb/MatsunagaFTFMK12, PubMed ID:22685395, Web of Science ID:WOS:000305965300025
  • 2B1412 Path sampling for small peptide systems using the Onsager-Machlup action method(Proteins:Structure & Function II:Theory, Aggregation,Oral Presentation,The 50th Annual Meeting of the Biophysical Society of Japan)               
    Fujisaki Hiroshi; Matsunaga Yasuhiro; Kidera Akinori
    Seibutsu Butsuri, Volume:52, First page:S40, 2012
    The Biophysical Society of Japan General Incorporated Association, English
    DOI:https://doi.org/10.2142/biophys.52.S40_2
    DOI ID:10.2142/biophys.52.S40_2, CiNii Articles ID:110009584700
  • Non-Brownian Phase Space Dynamics of Molecules, the Nature of their Vibrational States, and Non-RRKM Kinetics               
    David M. Leitner; Yasuhiro Matsunaga; Chun-Biu Li; Tamiki Komatsuzaki; Akira Shojiguchi; Mikito Toda
    Advancing Theory for Kinetics and Dynamics of Complex, Many-Dimensional Systems: Clusters and Proteins, First page:83, Last page:122, Jul. 2011
    John Wiley {\&} Sons, Inc.
    DOI:https://doi.org/10.1002/9781118087817.ch3
    DOI ID:10.1002/9781118087817.ch3, ISSN:1934-4791, ORCID:121848864
  • PROTEIN FUNCTIONAL MOTIONS: BASIC CONCEPTS AND COMPUTATIONAL METHODOLOGIES               
    Sotaro Fuchigami; Hiroshi Fujisaki; Yasuhiro Matsunaga; Akinori Kidera
    ADVANCING THEORY FOR KINETICS AND DYNAMICS OF COMPLEX, MANY-DIMENSIONAL SYSTEMS: CLUSTERS AND PROTEINS: ADVANCES IN CHEMICAL PHYSICS, VOL 145, Volume:145, First page:35, Last page:82, 2011, [Reviewed]
    English, In book
    DOI:https://doi.org/10.1002/9781118087817.ch2
    DOI ID:10.1002/9781118087817.ch2, ISSN:0065-2385, Web of Science ID:WOS:000305145000004
  • Cooperativity at different space and time scales in multiscale protein dynamics               
    Yasuhiro Matsunaga; Chun-Biu Li; Tamiki Komatsuzaki
    PHYSICAL REVIEW E, Volume:82, Number:1, First page:016213, Jul. 2010, [Reviewed]
    English, Scientific journal
    DOI:https://doi.org/10.1103/PhysRevE.82.016213
    DOI ID:10.1103/PhysRevE.82.016213, ISSN:1539-3755, eISSN:1550-2376, Web of Science ID:WOS:000280068000005
  • Multivariate frequency domain analysis of protein dynamics               
    Yasuhiro Matsunaga; Sotaro Fuchigami; Akinori Kidera
    JOURNAL OF CHEMICAL PHYSICS, Volume:130, Number:12, First page:124104, Mar. 2009, [Reviewed]
    English, Scientific journal
    DOI:https://doi.org/10.1063/1.3090812
    DOI ID:10.1063/1.3090812, ISSN:0021-9606, PubMed ID:19334805, Web of Science ID:WOS:000264775200007
  • Anomalous diffusion in folding dynamics of minimalist protein landscape               
    Yasuhiro Matsunaga; Chun-Biu Li; Tamiki Komatsuzaki
    PHYSICAL REVIEW LETTERS, Volume:99, Number:23, First page:238103, Dec. 2007, [Reviewed]
    English, Scientific journal
    DOI:https://doi.org/10.1103/PhysRevLett.99.238103
    DOI ID:10.1103/PhysRevLett.99.238103, ISSN:0031-9007, PubMed ID:18233416, Web of Science ID:WOS:000251451000072
  • Topographical complexity of multidimensional energy landscapes               
    Gareth J. Rylance; Roy L. Johnston; Yasuhiro Matsunaga; Chun-Biu Li; Akinori Baba; Tamiki Komatsuzaki
    PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, Volume:103, Number:49, First page:18551, Last page:18555, Dec. 2006, [Reviewed]
    English, Scientific journal
    DOI:https://doi.org/10.1073/pnas.0608517103
    DOI ID:10.1073/pnas.0608517103, ISSN:0027-8424, PubMed ID:17132739, Web of Science ID:WOS:000242689800032
  • Phase-space reaction network on a multisaddle energy landscape: HCN isomerization               
    CB Li; Y Matsunaga; M Toda; T Komatsuzaki
    JOURNAL OF CHEMICAL PHYSICS, Volume:123, Number:18, First page:184301, Nov. 2005, [Reviewed]
    English, Scientific journal
    DOI:https://doi.org/10.1063/1.2044707
    DOI ID:10.1063/1.2044707, ISSN:0021-9606, eISSN:1089-7690, PubMed ID:16292902, Web of Science ID:WOS:000233171300010
  • How many dimensions are required to approximate the potential energy landscape of a model protein?               
    T Komatsuzaki; K Hoshino; Y Matsunaga; GJ Rylance; RL Johnston; DJ Wales
    JOURNAL OF CHEMICAL PHYSICS, Volume:122, Number:8, First page:84714, Feb. 2005, [Reviewed]
    English, Scientific journal
    DOI:https://doi.org/10.1063/1.1854123
    DOI ID:10.1063/1.1854123, ISSN:0021-9606, PubMed ID:15836084, Web of Science ID:WOS:000227372200074
  • REGULARITY IN CHAOTIC TRANSITIONS ON MULTIBASIN LANDSCAPES               
    Tamiki Komatsuzaki; Kyoko Hoshino; Yasuhiro Matsunaga
    GEOMETRIC STRUCTURES OF PHASE SPACE IN MULTIDIMENSIONAL CHAOS: APPLICATIONS TO CHEMICAL REACTION DYNAMICS IN COMPLEX SYSTEMS, PT B, Volume:130, First page:257, Last page:313, 2005, [Reviewed]
    English
    DOI:https://doi.org/10.1002/0471712531.ch17
    DOI ID:10.1002/0471712531.ch17, ISSN:0065-2385, Web of Science ID:WOS:000266721900008
  • Multibasin dynamics in off-lattice minimalist protein landscapes               
    Y Matsunaga; KS Kostov; T Komatsuzaki
    JOURNAL OF PHYSICAL CHEMISTRY A, Volume:106, Number:45, First page:10898, Last page:10907, Nov. 2002, [Reviewed]
    English, Scientific journal
    DOI:https://doi.org/10.1021/jp025773j
    DOI ID:10.1021/jp025773j, ISSN:1089-5639, CiNii Articles ID:80015628398, Web of Science ID:WOS:000179180300023
■ MISC
  • Analyses of Structure Changes and Free Energy of Sarco/Endoplasmic Reticulum Ca<sup>2+</sup>-ATPase
    Chigusa KOBAYASHI; Yasuhiro MATSUNAGA; Jaewoon JUNG; Yuji SUGITA
    Seibutsu Butsuri, Volume:62, Number:5, First page:298, Last page:300, Nov. 2022, [Reviewed], [Invited]
    Biophysical Society of Japan
    DOI:https://doi.org/10.2142/biophys.62.298
    DOI ID:10.2142/biophys.62.298, ISSN:0582-4052, eISSN:1347-4219
  • How Can We Describe the Conformational Change of Proteins?-Advances in Path Sampling Techniques for Biomolecules               
    松永康佑; 森次圭; 藤崎弘士
    日本物理学会誌, Volume:76, Number:11, 2021
    ISSN:0029-0181, J-Global ID:202102210518233099
  • Kinetics of conformational changes of proteins calculated by manifold learning               
    藤崎弘士; 森次圭; 松永康佑; 山本典史; 末谷大道
    日本物理学会講演概要集(CD-ROM), Volume:76, Number:2, 2021
    ISSN:2189-079X, J-Global ID:202202218685875116
  • 重み付きアンサンブル法を用いたタンパク質の構造変化とキネティックスの計算               
    藤崎弘士; 森次圭; 松永康佑
    Volume:74, Number:2, 2019
    ISSN:2189-079X, J-Global ID:202002216136411679
  • 重み付きアンサンブル法による生体分子の構造変化ダイナミクスの計算               
    藤崎弘士; 森次圭; 松永康佑
    Volume:33rd, 2019
    J-Global ID:202002276357760426
  • スーパーコンピューター「京」によって解明された多剤排出トランスポーターの薬剤排出機構               
    松永 康佑
    Volume:76, Number:5, First page:410, Last page:412, 2018, [Invited]
    Japanese
  • 実験と計算の時間スケールが重なったことで見えてきたこと               
    松永 康佑
    Nov. 2016, [Invited]
    Japanese
  • On the Special Topic "Conformational Fluctuations and Dynamics of Biomolecules : Statistical Analysis of Computer Simulation and Experimental Data"               
    伊庭 幸人; 藤崎 弘士; 松永 康佑
    統計数理, Volume:62, Number:2, First page:163, Last page:170, Dec. 2014
    要旨なし生体高分子の揺らぎとダイナミクス-シミュレーションと実験の統計解析-その他・前書き
    統計数理研究所, Japanese
    ISSN:0912-6112, CiNii Articles ID:40020359216
  • Conformational Transition Pathways in Proteins Explored by the String Method               
    Yasuhiro Matsunaga
    統計数理, Volume:62, Number:2, First page:285, Last page:299, 2014, [Reviewed], [Invited]
    要旨あり生体高分子の揺らぎとダイナミクス-シミュレーションと実験の統計解析-研究詳解
    Japanese
    DOI:https://doi.org/10.11436/mssj.16.29
    DOI ID:10.11436/mssj.16.29, ISSN:0912-6112, CiNii Articles ID:120006020808
  • ストリング法によるタンパク質構造変化の解析               
    Yasuhiro Matsunaga
    Ensemble, Volume:16, Number:1, First page:29, Last page:35, Jan. 2014, [Reviewed], [Invited]
    Japanese
    DOI:https://doi.org/10.11436/mssj.16.29
    DOI ID:10.11436/mssj.16.29, ISSN:1884-6750, CiNii Articles ID:40019989626
  • 27aXZC-3 Path sampling of small peptides using the Onsager-Machlup action               
    Fujisaki Hiroshi; Matsunaga Yasuhiro; Kidera Akinori
    Meeting Abstracts of the Physical Society of Japan, Volume:68, Number:0, First page:432, Last page:432, 2013
    The Physical Society of Japan (JPS), Japanese
    ISSN:1342-8349, CiNii Articles ID:110009643989, CiNii Books ID:AA11439205
  • Conformational Transition Pathways of Adenylate Kinase Explored by the String Method               
    Yasuhiro Matsunaga; Hiroshi Fujisaki; Tohru Terada; Akinori Kidera
    BIOPHYSICAL JOURNAL, Volume:102, Number:3, First page:733A, Last page:733A, Jan. 2012
    English, Summary international conference
    ISSN:0006-3495, Web of Science ID:WOS:000321561205178
  • NON-BROWNIAN PHASE SPACE DYNAMICS OF MOLECULES, THE NATURE OF THEIR VIBRATIONAL STATES, AND NON-RRKM KINETICS
    David M. Leitner; Yasuhiro Matsunaga; Chun-Biu Li; Tamiki Komatsuzaki; Akira Shojiguchi; Mikito Toda
    ADVANCING THEORY FOR KINETICS AND DYNAMICS OF COMPLEX, MANY-DIMENSIONAL SYSTEMS: CLUSTERS AND PROTEINS: ADVANCES IN CHEMICAL PHYSICS, VOL 145, Volume:145, First page:83, Last page:122, 2011
    English
    ISSN:0065-2385, SCOPUS ID:84861908071, Web of Science ID:WOS:000305145000005
  • Supercomputing 09 参加報告書 (SC09レポート)               
    松永康佑
    2009, [Invited]
    Japanese, Meeting report
  • F1-4 Investigating collective protein dynamics by molecular dynamics simulation and time-series analysis               
    MATSUNAGA Yasuhiro; KIDERA Akinori
    The Computational Mechanics Conference, Volume:2008, Number:21, First page:7, Last page:8, 01 Nov. 2008
    The Japan Society of Mechanical Engineers, Japanese
    ISSN:1348-026X, CiNii Articles ID:110008701614, CiNii Books ID:AA1190257X
  • Polymers and Chaos: Anomalous Diffusion and Hierarchical Regularity               
    Yasuhiro Matsunaga; Tamiki Komatsuzaki
    Kobunshi, Volume:57, Number:2, First page:58, Last page:61, 2008, [Invited]
    社団法人 高分子学会, English
    DOI:https://doi.org/10.1295/kobunshi.57.58
    Scopus:https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85024454719&origin=inward
    Scopus Citedby:https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85024454719&origin=inward
    DOI ID:10.1295/kobunshi.57.58, ISSN:0454-1138, CiNii Articles ID:10021118818, SCOPUS ID:85024454719
  • 19aTC-10 Collectivity at Different Space and Time Scales in Multiscale Protein Dynamics               
    Matsunaga Yasuhiro; Li Chun-Biu; Komatsuzaki Tamiki
    Meeting Abstracts of the Physical Society of Japan, Volume:62, Number:0, First page:337, Last page:337, 2007
    The Physical Society of Japan, Japanese
    ISSN:1342-8349, CiNii Articles ID:110007193386, CiNii Books ID:AA11439205
  • タンパク質エネルギー地形における構造多様性と多次元エネルギー地形の新しい可視化手法 (複雑な多谷ポテンシャルエネルギー面上で生起する動力学諸問題--タンパク質とその周辺)               
    星野 恭子; 松永 康佑; Lylance Gareth J; Johnston Roy L; Wales David J; 小松崎 民樹
    Volume:86, Number:1, First page:117, Last page:122, Apr. 2006
    この論文は国立情報学研究所の電子図書館事業により電子化されました。
    Japanese
    ISSN:0525-2997, J-Global ID:200902246619602529, CiNii Articles ID:110004799178
  • 1P060 Chaotic time series analysis of collective motions in proteins               
    Matsunaga Y; Biu Li Chun; Komatsuzaki T
    Seibutsu Butsuri, Volume:45, Number:0, First page:S46, 2005
    一般社団法人 日本生物物理学会, Japanese
    DOI:https://doi.org/10.2142/biophys.45.S46_4
    DOI ID:10.2142/biophys.45.S46_4, ISSN:0582-4052, CiNii Articles ID:110004571041
  • タンパク質エネルギー地形における自由度の縮約化と時系列解析               
    星野恭子; 松永康佑; MILLER Mark A.; WALES David J.; 小松崎民樹
    Volume:2004, 2004
    J-Global ID:200902271819526465
  • A coarse-graining of energy landscape of proteins - Structural stability of the most stable states
    K Hoshino; Y Matsunaga; M Miller; DJ Wales; T Komatsuzaki
    SLOW DYNAMICS IN COMPLEX SYSTEMS, Volume:708, First page:344, Last page:345, 2004, [Reviewed]
    English
    ISSN:0094-243X, Web of Science ID:WOS:000222360700116
  • Protein folding dynamics: ergodic behavior in principal component space
    Y Matsunaga; T Komatsuzaki
    SLOW DYNAMICS IN COMPLEX SYSTEMS, Volume:708, First page:342, Last page:343, 2004, [Reviewed]
    English
    ISSN:0094-243X, Web of Science ID:WOS:000222360700115
  • Hierarchical regularity in multi-basin dynamics on protein landscapes
    Y Matsunaga; KS Kostov; T Komatsuzaki
    SLOW DYNAMICS IN COMPLEX SYSTEMS, Volume:708, First page:302, Last page:305, 2004, [Reviewed]
    English
    ISSN:0094-243X, Web of Science ID:WOS:000222360700098
  • 蛋白質フォールディングのダイナミックス : 異常拡散と動的相関(修士論文(2002年度))               
    松永 康佑
    Volume:81, Number:4, First page:571, Last page:592, Jan. 2004
    タンパク質の粗視化モデルに対して様々な温度で分子動力学計算を行い、得られた時系列を主に非線形時系列解析の手法を用いて解析した。調べたモデルは46アミノ酸残基からなり、天然構造として4つのstrandを持つβ-barrel型をとるモデルであり、その派生型であるファネル型に近いGo^^-likeモデルも併せて解析した。ポテンシャルエネルギーの揺らぎのアラン分散やパワースペクトルによる解析では、フラストレーションがより小さいエネルギー地形を有するGo^^-likeモデルではその折れたたみの転移温度においてオリジナルモデルよりも長い時間スケールに渡って、より強い非定常性を示し、白色ノイズ→1/fノイズへの、より先鋭な転移を伴うことが判明した。また、埋め込み解析による運動の次元性については、転移温度での揺らぎの大きい数10成分の埋め込み次元が、他の温度領域に比べて顕著に小さいことが判明した。これらの結果は総合的に、転移温度付近における低次元な長時間記憶を持つダイナミックスの存在を示唆している。
    Japanese
    ISSN:0525-2997, CiNii Articles ID:110006409265, CiNii Books ID:AN0021948X
  • Extracting dynamical information about protein folding from time series analysis.               
    K Kostov; M Toda; Y Matsunaga; T Komatsuzaki
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, Volume:226, First page:U427, Last page:U427, Sep. 2003
    English, Summary international conference
    ISSN:0065-7727, Web of Science ID:WOS:000187062401978
  • 生体分子時系列情報からの状態空間の再構成と主成分解析               
    星野恭子; 松永康佑; 小松崎民樹
    Volume:2003, 2003
    J-Global ID:200902281174160580
  • Non-stationarity and non-Markovianity of foldings in small proteins               
    Hoshino Kyoko; Matsunaga Yasuhiro; Koga Nobuyasu; Takada Shoji; Komatsuzaki Tamiki
    Meeting Abstracts of the Physical Society of Japan, Volume:58, Number:0, First page:334, Last page:334, 2003
    The Physical Society of Japan, Japanese
    ISSN:1342-8349, CiNii Articles ID:110002215733, CiNii Books ID:AA11439205
  • Protein Folding Dynamics : dynamical effect of solvents               
    Matsunaga Yasuhiro; Komatsuzaki Tamiki
    Meeting Abstracts of the Physical Society of Japan, Volume:58, Number:0, First page:356, Last page:356, 2003
    The Physical Society of Japan, Japanese
    ISSN:1342-8349, CiNii Articles ID:110002216019, CiNii Books ID:AA11439205
  • Coherence emerging at a Coarse-Grained Scale in Protein foldings               
    Komatsuzaki Tamiki; Matsunaga Yasuhiro; Toda Mikito
    Meeting Abstracts of the Physical Society of Japan, Volume:58, Number:0, First page:356, Last page:356, 2003
    The Physical Society of Japan, Japanese
    ISSN:1342-8349, CiNii Articles ID:110002216023, CiNii Books ID:AA11439205
  • Dynamics of Protein Folding : Abnormal Diffusion and Hierarchical Regularity               
    KOMATSUZAKI Tamiki; MATSUNAGA Yasuhiro
    Biophysics, Volume:42, Number:6, First page:285, Last page:289, Nov. 2002, [Reviewed], [Invited]
    日本生物物理学会, Japanese
    DOI ID:10.2142/biophys.42.285, ISSN:0582-4052, J-Global ID:200902167987891002, CiNii Articles ID:110001151651
  • 蛋白質折れ畳みダイナミックスにおける階層的規則性(複雑な多谷ポテンシャルエネルギー面上で生起する動力学的諸問題-力学的決定性と統計性の中間領域を探る(第2回)-,研究会報告)               
    松永 康佑
    Volume:78, Number:4, First page:457, Last page:462, 2002
    Japanese
    ISSN:0525-2997, CiNii Articles ID:110006408597, CiNii Books ID:AN0021948X
  • タンパク質フォールディングのダイナミックス-異常拡散と動的相関               
    松永康佑; 小松崎民樹
    Volume:3rd, 2002
    J-Global ID:200902145982107520
  • Off-Latticeビーズモデルに基づく蛋白質ダイナミックス 非定常性,非マルコフ性,および次元性               
    松永康佑; KOSTOV K; 小松崎民樹
    Volume:2002, 2002
    J-Global ID:200902193694028530
  • 1K1715 Multi-Basin Dynamics in Off-Lattice Minimalist Protein Landscapes               
    Matsunaga Y; Komatsuzaki T
    Seibutsu Butsuri, Volume:42, Number:2, First page:S66, 2002
    一般社団法人 日本生物物理学会, Japanese
    DOI:https://doi.org/10.2142/biophys.42.S66_2
    DOI ID:10.2142/biophys.42.S66_2, ISSN:0582-4052, CiNii Articles ID:110007133016
  • Cooperative Motions in Proteins: Randomness and Regularity.               
    松永康佑; 小松崎民樹
    日本化学会講演予稿集, Volume:79th, Number:1, 2001
    ISSN:0285-7626, J-Global ID:200902114129687107
  • Hierarchical Regularity in Protein Folding Dynamics.               
    松永康佑; 小松崎民樹
    分子構造総合討論会講演要旨集, Volume:2001, 2001
    J-Global ID:200902132582752490
  • Hierarchical Reularity and Energy Landscape in Protein Folding Dynamics               
    Matsunaga Yasuhiro; Komatsuzaki Tamiki
    Meeting Abstracts of the Physical Society of Japan, Volume:56, Number:0, First page:272, Last page:272, 2001
    The Physical Society of Japan, Japanese
    ISSN:1342-8349, CiNii Articles ID:110002025284, CiNii Books ID:AA11439205
■ Books and other publications
  • Protein Functional Motions: Basic Concepts and Computational Methodologies               
    S. Fuchigami; H. Fujisaki; Y. Matsunaga; A. Kidera
    Advances in Chemical Physics Vol. 145, page 35-82 (2011), 2011
  • Non-Brownian Phase Space Dynamics of Molecules, the Nature of their Vibrational States, and non-RRKM Kinetics               
    D. M. Leitner; Y. Matsunaga; C.-B. Li; T. Komatsuzaki; A. Shojiguchi; M. Toda
    Advances in Chemical Physics Vol. 145 page 83-122 (2011), 2011
  • Molecular Dynamics Simulation of Proteins: Two Models of Anharmonic Dynamics               
    A. Kidera; K. Moristugu; Y. Matsunaga; H. Fujisaki
    Proteins: Energy, Heat and Signal Flow, Chapter 5, p107-127 (2009), CRC Press., 2009
■ Lectures, oral presentations, etc.
  • Energetics and conformational pathways of functional rotation in the multidrug transporter AcrB               
    Yasuhiro Matsunaga
    Sep. 2018, [Invited]
    English
  • 機械学習を用いた計測とシミュレーションの統合によるタンパク質動態解析               
    松永 康佑
    Feb. 2018, [Invited]
    Japanese
  • ストリング法による多剤排出トランスポーターAcrBの機能ダイナミクス解析               
    松永 康佑
    Jan. 2018, [Invited]
  • 機械学習を用いた計測とシミュレーションの統合によるタンパク質動態解析               
    松永 康佑
    Nov. 2017, [Invited]
    Japanese
  • 機械学習を用いた1分子計測とシミュレーションの統合とタンパク質動態解析               
    松永 康佑
    Sep. 2017, [Invited]
  • Integrative modeling of protein folding dynamics from experiments and simulation               
    Yasuhiro Matsunaga
    Telluride Workshop on “The Complexity of Dynamics and Kinetics from Single Molecules to Cells” Telluride, Colorado USA, Jun. 2017, [Invited]
    English
  • Functional dynamics of multidrug transporter AcrB studied by string method               
    Yasuhiro Matsunaga
    Mar. 2017, [Invited]
    English
  • Drug extrusion mechanism of the multidrug transporter AcrB studied by molecular dynamics simulation               
    Yasuhiro Matsunaga
    Mar. 2017, [Invited]
  • Markov state modeling of protein folding dynamics by combining single-molecule experiments and simulations               
    Yasuhiro Matsunaga
    Simulations Encounter with Data Science, Institute of Statistical Mathematics, Tokyo, Japan, Mar. 2017, [Invited]
  • シミュレーションと実験を統合したモデリングで見えてきた生体分子の動態               
    松永 康佑
    Dec. 2016, [Invited]
  • タンパク質構造変化における反応自由度探索法               
    松永 康佑
    Oct. 2016, [Invited]
  • 生体分子におけるデータ同化               
    松永 康佑
    Oct. 2016, [Invited]
  • 1分子FRETデータと分子動力学シミュレーションによるタンパク質ダイナミクス解析               
    松永 康佑
    Jun. 2016, [Invited]
  • 1分子FRETデータと分子動力学シミュレーションによるタンパク質ダイナミクス解析               
    松永 康佑
    Jun. 2016, [Invited]
  • Drug extrusion mechanism of multidrug transporter AcrB studied by the string method               
    Yasuhiro Matsunaga
    Sep. 2015, [Invited]
  • Drug extrusion mechanism of multidrug transporter AcrB studied by molecular dynamics simulations               
    Yasuhiro Matsunaga
    Rare Event Sampling and Related Topics II, Institute of Statistical Mathematics, Tokyo, Japan, Mar. 2015, [Invited]
    English
  • 最小自由エネルギー経路探索法による多剤排出トランスポーターの薬剤排出機構の解明               
    松永 康佑
    Oct. 2014, [Invited]
    Japanese
  • Finding Conformational Transition Pathways in Biomolecules with the String Method and Sequential Data Assimilation               
    Yasuhiro Matsunaga
    Rare Event Sampling and Related Topics I, Institute of Statistical Mathematics, Tokyo, Japan, Mar. 2014, [Invited]
    English
  • Sequential data assimilation of single-molecule FRET photon-counting data by using molecular dynamics simulations               
    Yasuhiro Matsunaga
    Workshop on Molecular Simulations of Biophysics and Biochemistry, RIKEN AICS, Kobe, Japan, Nov. 2013, [Invited]
    English
  • 生体分子シミュレーション研究のGPGPUによる加速               
    松永 康佑
    Jun. 2013, [Invited]
    Japanese
  • 有限温度ストリング法によるアデニル酸キナーゼの最小自由エネルギー経路探索               
    松永 康佑
    Sep. 2012, [Invited]
    Japanese
  • タンパク質の構造変化サンプリング - ストリング法とデータ同化               
    松永 康佑
    Mar. 2012, [Invited]
    Japanese
  • 分子動力学シミュレーションの基礎と応用               
    松永 康佑
    Sep. 2011, [Invited]
    Japanese
  • ストリング法によるタンパク質構造変化解析               
    松永 康佑
    Jun. 2011, [Invited]
    Japanese
  • マルチコピーシミュレーションによるタンパク質構造サンプリング               
    松永康佑; 寺田透; 森次圭; 古田忠臣; 藤崎弘士; 木寺詔紀
    Feb. 2011, [Invited]
    Japanese
  • パスサンプリングによるタンパク質構造変化解析               
    松永 康佑
    Dec. 2009, [Invited]
    Japanese
  • 逐次モンテカルロ法で探るタンパク質ダイナミックス               
    松永 康佑
    May 2009, [Invited]
    Japanese
  • 生体分子構造転移ダイナミックスの時系列解析               
    松永 康佑
    Mar. 2004, [Invited]
    Japanese
■ Affiliated academic society
  • PROTEIN SCIENCE SOCIETY OF JAPAN
  • THE BIOPHYSICAL SOCIETY OF JAPAN
■ Works
  • MDToolbox.jl               
    Yasuhiro Matsunaga
    2018 - Present, [Software]
    MDToolbox: A Julia package for statistical analysis of molecular dynamics trajectories
  • GENESIS: Generalized Ensemble Simulation System               
    Y. Sugita; J. Jung; T. Mori; C. Kobayashi; Y. Matsunaga; T. Imai; T. Yoda
    2015 - Present, [Software]
  • MDToolbox               
    Yasuhiro Matsunaga
    2012 - Present, [Software]
    MDToolbox: A MATLAB/Octave toolbox for statistical analysis of molecular dynamics trajectories
  • プレスリリース 機械学習を用いたシミュレーションと実験計測データの融合               
    2018, [Others]
  • プレスリリース 京コンピュータを用いた多剤排出トランスポータAcrBの薬剤排出メカニズムの解明               
    2018, [Others]
  • プレスリリース 超並列分子動力学計算ソフトウェア「GENESIS」を開発               
    2015, [Others]
  • mu2lib               
    [Software]
■ Research projects
  • エンドツーエンド微分可能なアプローチによる実験と生体分子モデリングの融合               
    28 Feb. 2024 - 31 Mar. 2026
    Grant amount(Total):11830000, Direct funding:9100000, Indirect funding:2730000
    Grant number:23K28102
  • タイリング理論と分子科学の協働によるウイルス外殻構造の新たな設計原理の探究               
    30 Jun. 2023 - 31 Mar. 2026
    Grant amount(Total):6500000, Direct funding:5000000, Indirect funding:1500000
    Grant number:23K18105
  • Integration of experiments and biomolecular modeling through end-to-end differentiable approaches               
    Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (B), 01 Apr. 2023 - 31 Mar. 2026
    Saitama University
    Grant amount(Total):18460000, Direct funding:14200000, Indirect funding:4260000
    Grant number:23H03412
  • タイリングによるウイルス外殻のボトムアップ設計               
    30 Jul. 2020 - 31 Mar. 2023
    Grant amount(Total):6500000, Direct funding:5000000, Indirect funding:1500000
    Grant number:20K21380
  • 生体分子動態解析のためのデータ同化基盤の開発と応用               
    JST, PRESTO, Oct. 2016 - Mar. 2020
    Yasuhiro Matsunaga, Principal investigator
    Competitive research funding
  • 生体分子ダイナミクスのマルコフ状態モデルを構築するための効率的な構造サンプリング手法の開発               
    Apr. 2018 - Mar. 2019
    Principal investigator
    Competitive research funding
  • バンディットアルゴリズムに基づいた生体分子の効率的な構造サンプリング法の開発               
    Apr. 2017 - Mar. 2018
    Principal investigator
    Competitive research funding
  • シミュレーションと実験によるタンパク質ダイナミクスの統合モデリング               
    Apr. 2017 - Jun. 2017
    Principal investigator
    Competitive research funding
  • 大規模分子シミュレーションと実験の融合によるタンパク質ダイナミクス解析               
    Apr. 2016 - Mar. 2017
    Principal investigator
    Competitive research funding
  • パスサンプリングによる1分子FRET光子計数データのモデリング               
    Apr. 2014 - Mar. 2016
    Principal investigator
    Competitive research funding
  • パスサンプリングによるタンパク質構造変化解析基盤の構築               
    Apr. 2011 - Mar. 2014
    Principal investigator
    Competitive research funding
  • データ同化技術を用いた1分子FRET計測融合シミュレーションによるタンパク質動態の解明               
    Apr. 2012 - Mar. 2013
    Principal investigator
    Competitive research funding
  • Statistical analysis of conformational changes of proteins               
    Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, Grant-in-Aid for Young Scientists (B), 2012 - 2012
    MATSUNAGA YASUHIRO, Principal investigator
    Grant amount(Total):2860000, Direct funding:2200000, Indirect funding:660000
    With the help of recent advances in computer hardware and software, it is becoming possible to simulate functionally relevant conformational changes of biomolecules. On the other hand, however, the amount of simulation data is rapidly increasing and it is becoming difficult to treat such large amount of data without statistical analysis. In this study, we have developed a framework for the statistical analysis of molecular dynamics simulation data. The developed framework was successfully applied to conformational change data of two cases: (i) The most slowest degrees of freedom (involving the P-loop and a hinge region) in Adenylate Kinase was identified from 9 microseconds simulation data. (ii) Free energy differences along the conformational change pathways of multidrug transporter AcrB was successfully evaluated.
    Competitive research funding, Grant number:24770159
  • 生体分子系の構造転移ダイナミックスに対する非線形時系列解析理論の構築               
    Apr. 2004 - Mar. 2006
    Principal investigator
    Competitive research funding, Grant number:04J04006
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