World's Best Scientists 2026 revealed!
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Akira Otaka

D-Index & Metrics

Biology and Biochemistry

D-Index
68
Citations
14057
World Ranking
7926
National Ranking
537

Chemistry

D-Index
65
Citations
13442
World Ranking
7756
National Ranking
515

Akira Otaka 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 Akira Otaka sits on this spectrum.

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 publications 1,295+

This scientist: 396 publications — 80th percentile

80% of scientists in this discipline score the same or lower.

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

Akira Otaka 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 Akira Otaka sits on this spectrum.

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 D-Index 159+

This scientist: 65 D-Index — 58th percentile

58% of scientists in this discipline score the same or lower.

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

Overview

Akira Otaka is a researcher affiliated with the University of Tokushima in Japan, with significant contributions across biochemistry, genetics, molecular biology, medicine, and chemistry. Their body of work spans several specialized domains, particularly molecular biology and organic chemistry, with relevant applications in oncology and immunology.

The main fields of study that characterize Akira Otaka's research include:

  • Biochemistry, Genetics and Molecular Biology
  • Medicine
  • Chemistry

Subfields of focus involve:

  • Molecular Biology
  • Organic Chemistry
  • Oncology
  • Immunology
  • Biochemistry

Research topics frequently addressed by Otaka cover:

  • Chemical Synthesis and Analysis
  • Click Chemistry and Applications
  • Peptidase Inhibition and Analysis
  • Monoclonal and Polyclonal Antibodies Research
  • Sulfur-Based Synthesis Techniques
  • Lanthanide and Transition Metal Complexes
  • Receptor Mechanisms and Signaling

Otaka has published extensively, with recent papers including:

  • Peptide Cyclization Mediated by Metal-Free S-Arylation: S-Protected Cysteine Sulfoxide as an Umpolung of the Cysteine Nucleophile (2021, Chemistry - A European Journal)
  • Development of a 1,3a,6a-triazapentalene derivative as a compact and thiol-specific fluorescent labeling reagent (2020, Communications Chemistry)
  • Identification of Functional Domains of CXCL14 Involved in High-Affinity Binding and Intracellular Transport of CpG DNA (2021, The Journal of Immunology)
  • Sequence-Independent Traceless Method for Preparation of Peptide/Protein Thioesters Using CPaseY-Mediated Hydrazinolysis (2020, Chemical and Pharmaceutical Bulletin)
  • CA9 and PRELID2; hypoxia-responsive potential therapeutic targets for pancreatic ductal adenocarcinoma as per bioinformatics analyses (2023, Journal of Pharmacological Sciences)

Their research has appeared most frequently in the following venues:

  • Chemical and Pharmaceutical Bulletin
  • Chemistry - A European Journal
  • Communications Chemistry
  • Journal of Pharmacological Sciences
  • The Journal of Immunology

Frequent co-authors collaborating with Otaka include:

  • Masaya Denda
  • Akira Shigenaga
  • Daishiro Kobayashi
  • Yutaka Kohmura
  • Toshihiko Sugiki

Best Publications

  • Calcitonin gene-related peptide promotes mechanical nociception by potentiating release of substance P from the spinal dorsal horn in rats.

    Ryoya Oku;Masamichi Satoh;Nobutaka Fujii;Akira Otaka

  • A low-molecular-weight inhibitor against the chemokine receptor CXCR4: a strong anti-HIV peptide T140.

    Hirokazu Tamamura;Younong Xu;Toshio Hattori;Xiaoyan Zhang

  • T140 analogs as CXCR4 antagonists identified as anti-metastatic agents in the treatment of breast cancer

    Hirokazu Tamamura;Akira Hori;Naoyuki Kanzaki;Kenichi Hiramatsu

  • Identification of cell binding sites in the laminin α1 chain carboxyl- terminal globular domain by systematic screening of synthetic peptides

    Motoyoshi Nomizu;Woo Ho Kim;Keizo Yamamura;Atsushi Utani

  • HIV protease inhibitor nelfinavir inhibits replication of SARS-associated coronavirus.

    Norio Yamamoto;Rongge Yang;Yoshiyuki Yoshinaka;Shinji Amari

  • Molecular‐Size Reduction of a Potent CXCR4‐Chemokine Antagonist Using Orthogonal Combination of Conformation‐ and Sequence‐Based Libraries

    Nobutaka Fujii;Shinya Oishi;Kenichi Hiramatsu;Takanobu Araki

  • Nonhydrolyzable Phosphotyrosyl Mimetics for the Preparation Of Phosphatase-Resistant SH2 Domain Inhibitors

    Terrence R. Jr. Burke;Mark S. Smyth;Akira Otaka;Motoyoshi Nomizu

  • Preparation of fluoro- and hydroxy-4-(phosphonomethyl)-D,L-phenylalanine suitably protected for solid-phase synthesis of peptides containing hydrolytically stable analogs of O-phosphotyrosine

    Terrence R. Burke;Mark S. Smyth;Motoyoshi Nomizu;Akira Otaka

  • Cell Binding Sequences in Mouse Laminin α1 Chain

    Motoyoshi Nomizu;Yuichiro Kuratomi;Katherine M. Malinda;Sang-Yong Song

  • Remodeling of gp41‐C34 Peptide Leads to Highly Effective Inhibitors of the Fusion of HIV‐1 with Target Cells

    Akira Otaka;Miki Nakamura;Daisuke Nameki;Eiichi Kodama

  • A highly stereoselective synthesis of (E)-alkene dipeptide isosteres via organocyanocopper-Lewis acid mediated reaction

    Toshiro Ibuka;Hiromu Habashita;Akira Otaka;Nobutaka Fujii

  • Structural and functional analyses of minimal phosphopeptides targeting the polo-box domain of polo-like kinase 1

    Sang-Moon Yun;Tinoush Moulaei;Dan Lim;Jeong K. Bang

  • Possible involvement of the α1 isoform of 5′AMP-activated protein kinase in oxidative stress-stimulated glucose transport in skeletal muscle

    Taro Toyoda;Tatsuya Hayashi;Licht Miyamoto;Shin Yonemitsu

  • A novel anti-HIV synthetic peptide, T-22 ([Tyr5,12,Lys7]-polyphemusin II)

    Masao Masuda;Hideki Nakashima;Toshihiro Ueda;Hiroyasu Naba

  • Identification of a CXCR4 antagonist, a T140 analog, as an anti-rheumatoid arthritis agent.

    Hirokazu Tamamura;Miho Fujisawa;Kenichi Hiramatsu;Makiko Mizumoto

  • Pharmacophore identification of a specific CXCR4 inhibitor, T140, leads to development of effective anti-HIV agents with very high selectivity indexes.

    Hirokazu Tamamura;Akane Omagari;Shinya Oishi;Taisei Kanamoto

  • New strategy for the chemical synthesis of proteins

    Haruaki Yajima;Nobutaka Fujii;Susumu Funakoshi;Toshihiro Watanabe

  • Development of specific CXCR4 inhibitors possessing high selectivity indexes as well as complete stability in serum based on an anti-HIV peptide T140.

    Hirokazu Tamamura;Akane Omagari;Kenichi Hiramatsu;Kazuyo Gotoh

  • Identification of Cell Binding Sequences in Mouse Laminin γ1 Chain by Systematic Peptide Screening

    Motoyoshi Nomizu;Yuichiro Kuratomi;Sang-Yong Song;M. Lourdes Ponce

  • Why is phosphonodifluoromethyl phenylalanine a more potent inhibitory moiety than phosphonomethyl phenylalanine toward protein-tyrosine phosphatases?

    L. Chen;L. Wu;L. Wu;A. Otaka;M.S. Smyth

  • Chemical Synthesis of Biologically Active Monoglycosylated GM2‐Activator Protein Analogue Using N‐Sulfanylethylanilide Peptide

    Kohei Sato;Akira Shigenaga;Keisuke Kitakaze;Ken Sakamoto

Frequent Co-Authors

Nobutaka Fujii
Nobutaka Fujii Kyoto University
Hirokazu Tamamura
Hirokazu Tamamura Tokyo Medical and Dental University
Shinya Oishi
Shinya Oishi Kyoto University
Naoki Yamamoto
Naoki Yamamoto Kyoto University
Motoyoshi Nomizu
Motoyoshi Nomizu Tokyo University of Pharmacy and Life Sciences
Peter P. Roller
Peter P. Roller National Institutes of Health
Terrence R. Burke
Terrence R. Burke National Institutes of Health
Hiroaki Ohno
Hiroaki Ohno Kyoto University
Stephen C. Peiper
Stephen C. Peiper Thomas Jefferson University
Masao Matsuoka
Masao Matsuoka Kumamoto University

External Links

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Best Scientists Citing Akira Otaka

Nobutaka Fujii

Nobutaka Fujii

Kyoto University

Publications: 155

Hirokazu Tamamura

Hirokazu Tamamura

Tokyo Medical and Dental University

Publications: 113

Motoyoshi Nomizu

Motoyoshi Nomizu

Tokyo University of Pharmacy and Life Sciences

Publications: 105

Shinya Oishi

Shinya Oishi

Kyoto University

Publications: 82

Terrence R. Burke

Terrence R. Burke

National Institutes of Health

Publications: 51

Yoshiaki Kiso

Yoshiaki Kiso

Nagahama Institute of Bio-Science and Technology

Publications: 48

Hiroaki Ohno

Hiroaki Ohno

Kyoto University

Publications: 45

Shibo Jiang

Shibo Jiang

Fudan University

Publications: 40

Masao Matsuoka

Masao Matsuoka

Kumamoto University

Publications: 38

Hynda K. Kleinman

Hynda K. Kleinman

George Washington University

Publications: 32

Robert I. Lehrer

Robert I. Lehrer

University of California, Los Angeles

Publications: 32

Yoshihiko Yamada

Yoshihiko Yamada

National Institutes of Health

Publications: 29

Naoki Yamamoto

Naoki Yamamoto

Kyoto University

Publications: 26

Zhong Yin Zhang

Zhong Yin Zhang

Purdue University West Lafayette

Publications: 25

Amnon Peled

Amnon Peled

Hebrew University of Jerusalem

Publications: 25

Shiroh Futaki

Shiroh Futaki

Kyoto University

Publications: 23

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