World's Best Scientists 2026 revealed!
Ichio Shimada

Ichio Shimada

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 62 9006 8165 631 584 334 11347
Biology and Biochemistry 62 10997 10139 753 709 332 11082

Ichio Shimada publications per year

The chart shows the history of publications by Ichio Shimada between 1981 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Ichio Shimada published across 45 years, from 1981 to 2025, averaging 7.7 papers a year. Output peaked at 17 publications in 2012. 8 of the 346 publications appeared in the last two years.

No. of publications
5 10 15
Bar chart. Horizontal axis: year, 1981 to 2025. Vertical axis: number of publications, 0 to 17. Peak 17 publications in 2012. 1981: 1 publication 1982: 0 publications 1983: 0 publications 1984: 0 publications 1985: 1 publication 1986: 1 publication 1987: 0 publications 1988: 1 publication 1989: 7 publications 1990: 9 publications 1991: 5 publications 1992: 7 publications 1993: 8 publications 1994: 4 publications 1995: 8 publications 1996: 5 publications 1997: 8 publications 1998: 9 publications 1999: 13 publications 2000: 15 publications 2001: 7 publications 2002: 7 publications 2003: 5 publications 2004: 9 publications 2005: 11 publications 2006: 8 publications 2007: 12 publications 2008: 9 publications 2009: 9 publications 2010: 15 publications 2011: 8 publications 2012: 17 publications 2013: 12 publications 2014: 13 publications 2015: 17 publications 2016: 8 publications 2017: 13 publications 2018: 15 publications 2019: 12 publications 2020: 13 publications 2021: 9 publications 2022: 4 publications 2023: 3 publications 2024: 1 publication 2025: 7 publications
1981 2025

346 publications in total across all disciplines

View publications per year as a table
Ichio Shimada: publications per year, 1981 to 2025
Year Publications
1981 1
1982 0
1983 0
1984 0
1985 1
1986 1
1987 0
1988 1
1989 7
1990 9
1991 5
1992 7
1993 8
1994 4
1995 8
1996 5
1997 8
1998 9
1999 13
2000 15
2001 7
2002 7
2003 5
2004 9
2005 11
2006 8
2007 12
2008 9
2009 9
2010 15
2011 8
2012 17
2013 12
2014 13
2015 17
2016 8
2017 13
2018 15
2019 12
2020 13
2021 9
2022 4
2023 3
2024 1
2025 7
Total 346
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Ichio Shimada publication distribution in Chemistry in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Chemistry in 2026. The highlighted bar marks where Ichio Shimada sits on this spectrum.

No. of scientists
250 500 750 1,000 1,250
Bar chart with 63 bars. Horizontal axis: publications, 61–80 to 1,295+. Vertical axis: number of scientists, 0 to 1,350. Most scientists, 1,350, have 161–180 publications. The last bar groups every scientist with 1,295 publications or more. The highlighted bar, 321–340 publications, is where this scientist sits. 61–80 publications: 66 scientists 81–100 publications: 302 scientists 101–120 publications: 623 scientists 121–140 publications: 918 scientists 141–160 publications: 1,218 scientists 161–180 publications: 1,350 scientists 181–200 publications: 1,344 scientists 201–220 publications: 1,281 scientists 221–240 publications: 1,216 scientists 241–260 publications: 1,100 scientists 261–280 publications: 979 scientists 281–300 publications: 939 scientists 301–320 publications: 764 scientists 321–340 publications: 643 scientists 341–360 publications: 628 scientists 361–380 publications: 522 scientists 381–400 publications: 459 scientists 401–420 publications: 397 scientists 421–440 publications: 327 scientists 441–460 publications: 270 scientists 461–480 publications: 265 scientists 481–500 publications: 252 scientists 501–520 publications: 201 scientists 521–540 publications: 185 scientists 541–560 publications: 148 scientists 561–580 publications: 148 scientists 581–600 publications: 132 scientists 601–620 publications: 114 scientists 621–640 publications: 104 scientists 641–660 publications: 91 scientists 661–680 publications: 92 scientists 681–700 publications: 73 scientists 701–720 publications: 57 scientists 721–740 publications: 54 scientists 741–760 publications: 67 scientists 761–780 publications: 45 scientists 781–800 publications: 46 scientists 801–820 publications: 39 scientists 821–840 publications: 32 scientists 841–860 publications: 36 scientists 861–880 publications: 29 scientists 881–900 publications: 26 scientists 901–920 publications: 24 scientists 921–940 publications: 14 scientists 941–960 publications: 23 scientists 961–980 publications: 28 scientists 981–1,000 publications: 15 scientists 1,001–1,020 publications: 29 scientists 1,021–1,040 publications: 12 scientists 1,041–1,060 publications: 19 scientists 1,061–1,080 publications: 12 scientists 1,081–1,100 publications: 6 scientists 1,101–1,120 publications: 8 scientists 1,121–1,140 publications: 12 scientists 1,141–1,160 publications: 5 scientists 1,161–1,180 publications: 6 scientists 1,181–1,200 publications: 14 scientists 1,201–1,220 publications: 7 scientists 1,221–1,240 publications: 2 scientists 1,241–1,260 publications: 6 scientists 1,261–1,280 publications: 4 scientists 1,281–1,294 publications: 6 scientists 1,295+ publications: 100 scientists
61–80 publications 1,295+

This scientist: 334 publications — 70th percentile

70% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,295 publications or more.

View publications distribution as a table
Number of Chemistry scientists by publication count, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
Publications Scientists This scientist
61–80 66
81–100 302
101–120 623
121–140 918
141–160 1,218
161–180 1,350
181–200 1,344
201–220 1,281
221–240 1,216
241–260 1,100
261–280 979
281–300 939
301–320 764
321–340 643 334
341–360 628
361–380 522
381–400 459
401–420 397
421–440 327
441–460 270
461–480 265
481–500 252
501–520 201
521–540 185
541–560 148
561–580 148
581–600 132
601–620 114
621–640 104
641–660 91
661–680 92
681–700 73
701–720 57
721–740 54
741–760 67
761–780 45
781–800 46
801–820 39
821–840 32
841–860 36
861–880 29
881–900 26
901–920 24
921–940 14
941–960 23
961–980 28
981–1,000 15
1,001–1,020 29
1,021–1,040 12
1,041–1,060 19
1,061–1,080 12
1,081–1,100 6
1,101–1,120 8
1,121–1,140 12
1,141–1,160 5
1,161–1,180 6
1,181–1,200 14
1,201–1,220 7
1,221–1,240 2
1,241–1,260 6
1,261–1,280 4
1,281–1,294 6
1,295+ 100
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Ichio Shimada D-index placement in Chemistry in 2026

The chart shows the D-index (discipline H-index) distribution of Chemistry scientists ranked by Research.com in 2026. The highlighted bar marks where Ichio Shimada sits on this spectrum.

No. of scientists
250 500 750 1,000
Bar chart with 61 bars. Horizontal axis: D-Index, 40–41 to 159+. Vertical axis: number of scientists, 0 to 1,051. Most scientists, 1,051, have 56–57 D-Index. The last bar groups every scientist with 159 D-Index or more. The highlighted bar, 62–63 D-Index, is where this scientist sits. 40–41 D-Index: 289 scientists 42–43 D-Index: 612 scientists 44–45 D-Index: 808 scientists 46–47 D-Index: 776 scientists 48–49 D-Index: 835 scientists 50–51 D-Index: 861 scientists 52–53 D-Index: 872 scientists 54–55 D-Index: 933 scientists 56–57 D-Index: 1,051 scientists 58–59 D-Index: 930 scientists 60–61 D-Index: 882 scientists 62–63 D-Index: 834 scientists 64–65 D-Index: 731 scientists 66–67 D-Index: 775 scientists 68–69 D-Index: 683 scientists 70–71 D-Index: 646 scientists 72–73 D-Index: 561 scientists 74–75 D-Index: 501 scientists 76–77 D-Index: 437 scientists 78–79 D-Index: 388 scientists 80–81 D-Index: 354 scientists 82–83 D-Index: 292 scientists 84–85 D-Index: 275 scientists 86–87 D-Index: 254 scientists 88–89 D-Index: 235 scientists 90–91 D-Index: 185 scientists 92–93 D-Index: 192 scientists 94–95 D-Index: 155 scientists 96–97 D-Index: 163 scientists 98–99 D-Index: 125 scientists 100–101 D-Index: 105 scientists 102–103 D-Index: 105 scientists 104–105 D-Index: 112 scientists 106–107 D-Index: 88 scientists 108–109 D-Index: 68 scientists 110–111 D-Index: 69 scientists 112–113 D-Index: 65 scientists 114–115 D-Index: 79 scientists 116–117 D-Index: 61 scientists 118–119 D-Index: 44 scientists 120–121 D-Index: 37 scientists 122–123 D-Index: 40 scientists 124–125 D-Index: 33 scientists 126–127 D-Index: 26 scientists 128–129 D-Index: 34 scientists 130–131 D-Index: 35 scientists 132–133 D-Index: 25 scientists 134–135 D-Index: 27 scientists 136–137 D-Index: 17 scientists 138–139 D-Index: 16 scientists 140–141 D-Index: 20 scientists 142–143 D-Index: 20 scientists 144–145 D-Index: 15 scientists 146–147 D-Index: 9 scientists 148–149 D-Index: 9 scientists 150–151 D-Index: 16 scientists 152–153 D-Index: 11 scientists 154–155 D-Index: 9 scientists 156–157 D-Index: 3 scientists 158 D-Index: 3 scientists 159+ D-Index: 98 scientists
40–41 D-Index 159+

This scientist: 62 D-Index — 52nd percentile

52% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 159 D-Index or more.

View D-Index distribution as a table
Number of Chemistry scientists by D-index, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
D-Index Scientists This scientist
40–41 289
42–43 612
44–45 808
46–47 776
48–49 835
50–51 861
52–53 872
54–55 933
56–57 1,051
58–59 930
60–61 882
62–63 834 62
64–65 731
66–67 775
68–69 683
70–71 646
72–73 561
74–75 501
76–77 437
78–79 388
80–81 354
82–83 292
84–85 275
86–87 254
88–89 235
90–91 185
92–93 192
94–95 155
96–97 163
98–99 125
100–101 105
102–103 105
104–105 112
106–107 88
108–109 68
110–111 69
112–113 65
114–115 79
116–117 61
118–119 44
120–121 37
122–123 40
124–125 33
126–127 26
128–129 34
130–131 35
132–133 25
134–135 27
136–137 17
138–139 16
140–141 20
142–143 20
144–145 15
146–147 9
148–149 9
150–151 16
152–153 11
154–155 9
156–157 3
158 3
159+ 98
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Overview

Ichio Shimada is affiliated with the University of Tokyo in Japan and has contributed extensively in the field of Biochemistry, Genetics and Molecular Biology with a focus on Molecular Biology, Cellular and Molecular Neuroscience, Physiology, Spectroscopy, and Radiology, Nuclear Medicine and Imaging.

The research topics central to Shimada's work include:

  • Receptor Mechanisms and Signaling
  • Protein Structure and Dynamics
  • Glycosylation and Glycoproteins Research
  • Ion channel regulation and function
  • Neuropeptides and Animal Physiology
  • Pharmacological Receptor Mechanisms and Effects
  • Monoclonal and Polyclonal Antibodies Research

Shimada has published multiple papers in well-recognized scientific journals. Recent publications include:

  • "Targeting FROUNT with disulfiram suppresses macrophage accumulation and its tumor-promoting properties," 2020, Nature Communications
  • "Membrane perturbation by lipidated Atg8 underlies autophagosome biogenesis," 2021, Nature Structural & Molecular Biology
  • "Structural equilibrium underlying ligand-dependent activation of β2-adrenoreceptor," 2020, Nature Chemical Biology
  • "Activation of adenosine A 2A receptor by lipids from docosahexaenoic acid revealed by NMR," 2020, Science Advances
  • "Real-Time In-Cell NMR Reveals the Intracellular Modulation of GTP-Bound Levels of RAS," 2020, Cell Reports

Shimada frequently publishes in several venues, with multiple works in:

  • Nature Communications
  • Biological Magnetic Resonance Bank
  • Science Advances
  • Journal of the American Chemical Society
  • bioRxiv (Cold Spring Harbor Laboratory)

Frequent co-authors collaborating with Shimada include:

  • Shunsuke Imai
  • Takumi Ueda
  • Koh Takeuchi
  • Yutaka Kofuku
  • Yuji Tokunaga

Best Publications

  • Three-dimensional solution structure of the B domain of staphylococcal protein A: comparisons of the solution and crystal structures.

    Hiroaki Gouda;Hidetaka Torigoe;Akiko Saito;Moriyuki Sato

  • A novel NMR method for determining the interfaces of large protein-protein complexes.

    Hideo Takahashi;Tamiji Nakanishi;Keiichiro Kami;Yoji Arata

  • GPCR drug discovery: integrating solution NMR data with crystal and cryo-EM structures

    Ichio Shimada;Takumi Ueda;Yutaka Kofuku;Matthew T. Eddy

  • Efficacy of the β₂-adrenergic receptor is determined by conformational equilibrium in the transmembrane region.

    Yutaka Kofuku;Takumi Ueda;Junya Okude;Yutaro Shiraishi

  • Mechanism of mRNA deadenylation: evidence for a molecular interplay between translation termination factor eRF3 and mRNA deadenylases

    Yuji Funakoshi;Yusuke Doi;Nao Hosoda;Naoyuki Uchida

  • Functional Dynamics of Deuterated β2-Adrenergic Receptor in Lipid Bilayers Revealed by NMR Spectroscopy†

    Yutaka Kofuku;Takumi Ueda;Takumi Ueda;Junya Okude;Yutaro Shiraishi

  • Structural Basis of the Interaction between Chemokine Stromal Cell-derived Factor-1/CXCL12 and Its G-protein-coupled Receptor CXCR4

    Yutaka Kofuku;Chie Yoshiura;Takumi Ueda;Hiroaki Terasawa

  • Identification of neutral and sialyl N-linked oligosaccharide structures from human serum glycoproteins using three kinds of high-performance liquid chromatography.

    H. Nakagawa;Y. Kawamura;K. Kato;I. Shimada

  • Differential N-glycan patterns of secreted and intracellular IgG produced in Trichoplusia ni cells.

    Tsu-An Hsu;Noriko Takahashi;Yoshinori Tsukamoto;Koichi Kato

  • Observation of NMR signals from proteins introduced into living mammalian cells by reversible membrane permeabilization using a pore-forming toxin, streptolysin O.

    Shinji Ogino;Satoshi Kubo;Ryo Umemoto;Shuxian Huang

  • Solution structure of hanatoxin1, a gating modifier of voltage-dependent K(+) channels: common surface features of gating modifier toxins.

    Hideo Takahashi;Jae Il Kim;Hye Jung Min;Kazuki Sato

  • Identification of a Conformational Equilibrium That Determines the Efficacy and Functional Selectivity of the μ-Opioid Receptor

    Junya Okude;Takumi Ueda;Takumi Ueda;Yutaka Kofuku;Motohiko Sato

  • Structure of melittin bound to perdeuterated dodecylphosphocholine micelles as studied by two-dimensional NMR and distance geometry calculations

    Fuyuhiko Inagaki;Ichio Shimada;Ken Kawaguchi;Masahiko Hirano

  • Determination of the interface of a large protein complex by transferred cross-saturation measurements.

    Tamiji Nakanishi;Mayumi Miyazawa;Masayoshi Sakakura;Hiroaki Terasawa

  • A Gel-Encapsulated Bioreactor System for NMR Studies of Protein–Protein Interactions in Living Mammalian Cells†

    Satoshi Kubo;Noritaka Nishida;Yuko Udagawa;Osamu Takarada

  • Structural basis of the interaction between IgG and Fcgamma receptors.

    Koichi Kato;Catherine Sautès-Fridman;Wakako Yamada;Kaoru Kobayashi

  • Crystallographic and lithium-6 and nitrogen-15 NMR studies of a chiral bidentate lithium amide. An effect of aggregation states on an enantioselective deprotonation reaction

    Daisaku Sato;Hisashi Kawasaki;Ichio Shimada;Yoji Arata

  • Structural basis underlying the dual gate properties of KcsA

    Shunsuke Imai;Masanori Osawa;Koh Takeuchi;Ichio Shimada;Ichio Shimada

  • Pairing of oligosaccharides in the Fc region of immunoglobulin G

    Katsuyoshi Masuda;Yoshiki Yamaguchi;Koichi Kato;Noriko Takahashi

  • Chondroitin sulfate E fragments enhance CD44 cleavage and CD44-dependent motility in tumor cells.

    Kazuki N. Sugahara;Takako Hirata;Toshiyuki Tanaka;Shinji Ogino

Frequent Co-Authors

Yoji Arata
Yoji Arata University of Tokyo
Koichi Kato
Koichi Kato National Institutes of Natural Sciences
Hideo Takahashi
Hideo Takahashi University of Tokyo
Noriko Takahashi
Noriko Takahashi Nagoya City University
Haruki Nakamura
Haruki Nakamura Osaka University
Kouji Matsushima
Kouji Matsushima Tokyo University of Science
Masayuki Miyasaka
Masayuki Miyasaka Osaka University
Eiko Ohtsuka
Eiko Ohtsuka Hokkaido University
Fuyuhiko Inagaki
Fuyuhiko Inagaki Hokkaido University
Osamu Nureki
Osamu Nureki University of Tokyo

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