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Keiichi Fukuyama

Keiichi Fukuyama

Osaka University
Japan

D-Index & Metrics

Chemistry

D-Index
48
Citations
7488
World Ranking
15329
National Ranking
1204

Keiichi Fukuyama 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 Keiichi Fukuyama 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: 339 publications — 71st percentile

71% of scientists in this discipline score the same or lower.

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

Keiichi Fukuyama 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 Keiichi Fukuyama 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: 48 D-Index — 16th percentile

16% of scientists in this discipline score the same or lower.

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

Overview

Keiichi Fukuyama is affiliated with Osaka University in Japan. Their research primarily falls within the field of Biochemistry, Genetics and Molecular Biology, with a focus on several subfields including Molecular Biology, Biochemistry, Cell Biology, Renewable Energy, Sustainability and the Environment, and Genetics.

The main topics of their work include:

  • Photosynthetic Processes and Mechanisms
  • Heme Oxygenase-1 and Carbon Monoxide
  • Hemoglobin structure and function
  • Amino Acid Enzymes and Metabolism
  • Digestive system and related health
  • Infant Nutrition and Health
  • Plant Gene Expression Analysis

Fukuyama has contributed to several recent publications. These papers include:

  • Bacterial γ-glutamyltranspeptidases, physiological function, structure, catalytic mechanism and application (2020, Proceedings of the Japan Academy Series B)
  • Crystal structure of phytochromobilin synthase in complex with biliverdin IXα, a key enzyme in the biosynthesis of phytochrome (2020, Journal of Biological Chemistry)
  • Conformational Equilibrium of NADPH-Cytochrome P450 Oxidoreductase Is Essential for Heme Oxygenase Reaction (2020, Antioxidants)
  • Domain movements of NADPH-cytochrome P450 oxidoreductase (CPR) are required for the smooth electron transfer from CPR to heme-heme oxygenase-1 (HO-1) complex (2021, Acta Crystallographica Section A Foundations and Advances)
  • Neutron crystallography and quantum chemical analysis of bilin reductase PcyA mutants reveal substrate and catalytic residue protonation states (2022, Journal of Biological Chemistry)

Frequent coauthors in Fukuyama's body of work include Masakazu Sugishima, Kei Wada, Ken Yamamoto, Junichi Taira, and Hideaki Sato. The scientist's publications appear frequently in journals such as the Journal of Biological Chemistry, Proceedings of the Japan Academy Series B, Antioxidants, Acta Crystallographica Section A Foundations and Advances, and bioRxiv (Cold Spring Harbor Laboratory).

Best Publications

  • Crystal structure of the fungal peroxidase from Arthromyces ramosus at 1.9 A resolution. Structural comparisons with the lignin and cytochrome c peroxidases.

    Naoki Kunishima;Keiichi Fukuyama;Hiroshi Matsubara;Haruyo Hatanaka

  • X-Ray Analysis of a [2Fe-2S] Ferredoxin from ‘Spirulina platensis. Main Chain Fold and Location of Side Chains at 2.5 Å Resolution

    Tomitake Tsukihara;Keiichi Fukuyama;Masahiro Nakamura;Yukiteru Katsube

  • Structure of S. platensis [2Fe-2S] ferredoxin and evolution of chloroplast-type ferredoxins

    Keiichi Fukuyama;Toshiharu Hase;Satoshi Matsumoto;Tomitake Tsukihara

  • Solvent tuning of electrochemical potentials in the active sites of HiPIP versus ferredoxin

    Abhishek Dey;Francis E. Jenney;Michael W. W. Adams;Elena Babini

  • Crystal structures of γ-glutamyltranspeptidase from Escherichia coli, a key enzyme in glutathione metabolism, and its reaction intermediate

    Toshihiro Okada;Hideyuki Suzuki;Kei Wada;Hidehiko Kumagai

  • Structure and function of plant-type ferredoxins

    Keiichi Fukuyama

  • Crystal structure of rat heme oxygenase-1 in complex with heme.

    Masakazu Sugishima;Yoshiaki Omata;Yoshimitsu Kakuta;Hiroshi Sakamoto

  • Crystal structure of a repair enzyme of oxidatively damaged DNA, MutM (Fpg), from an extreme thermophile, Thermus thermophilus HB8.

    Mitsuaki Sugahara;Tsutomu Mikawa;Takashi Kumasaka;Masaki Yamamoto

  • Tertiary structure of Bacillus thermoproteolyticus [4Fe-4S] ferredoxin. Evolutionary implications for bacterial ferredoxins.

    Keiichi Fukuyama;Yoshitomo Nagahara;Tomitake Tsukihara;Yukiteru Katsube

  • Interchangeability and distinct properties of bacterial Fe-S cluster assembly systems: functional replacement of the isc and suf operons in Escherichia coli with the nifSU-like operon from Helicobacter pylori.

    Umechiyo Tokumoto;Seiichi Kitamura;Keiichi Fukuyama;Yasuhiro Takahashi

  • STRUCTURE OF THE 2FE-2S FERREDOXIN I FROM THE BLUE-GREEN ALGA APHANOTHECE SACRUM AT 2.2 A RESOLUTION

    Tomitake Tsukihara;Keiichi Fukuyama;Masayasu Mizushima;Tadashi Harioka

  • The asymmetric trimeric architecture of [2Fe-2S] IscU: implications for its scaffolding during iron-sulfur cluster biosynthesis.

    Yoshimitsu Shimomura;Kei Wada;Keiichi Fukuyama;Yasuhiro Takahashi

  • TERTIARY AND QUATERNARY STRUCTURES OF 0.19 ALPHA -AMYLASE INHIBITOR FROM WHEAT KERNEL DETERMINED BY X-RAY ANALYSIS AT 2.06 A RESOLUTION

    Yutaka Oda;Takateru Matsunaga;Keiichi Fukuyama;Toshiyuki Miyazaki

  • Structure of [4Fe―4S] ferredoxin from Bacillus thermoproteolyticus refined at 2.3 Å resolution: structural comparisons of bacterial ferredoxins

    Keiichi Fukuyama;Hiroshi Matsubara;Tomitake Tsukihara;Yukiteru Katsube

  • Crystal structure of Escherichia coli Fdx, an adrenodoxin-type ferredoxin involved in the assembly of iron-sulfur clusters.

    Yoshimitsu Kakuta;Tatsuya Horio;Yasuhiro Takahashi;Keiichi Fukuyama

  • Crystal structure of chondroitin polymerase from Escherichia coli K4.

    Takuo Osawa;Nobuo Sugiura;Hiroaki Shimada;Ryoko Hirooka

  • Crystal Structure of the γ-Glutamyltranspeptidase Precursor Protein from Escherichia coli STRUCTURAL CHANGES UPON AUTOCATALYTIC PROCESSING AND IMPLICATIONS FOR THE MATURATION MECHANISM

    Toshihiro Okada;Hideyuki Suzuki;Kei Wada;Hidehiko Kumagai

  • The crystal structure of exonuclease RecJ bound to Mn2+ ion suggests how its characteristic motifs are involved in exonuclease activity

    Atsushi Yamagata;Yoshimitsu Kakuta;Ryoji Masui;Keiichi Fukuyama

  • Autoprocessing of Helicobacter pylori γ-glutamyltranspeptidase leads to the formation of a threonine -threonine catalytic dyad

    Gina Boanca;Aaron Sand;Toshihiro Okada;Hideyuki Suzuki

  • Crystal structures of cyanide- and triiodide-bound forms of Arthromyces ramosus peroxidase at different pH values. Perturbations of active site residues and their implication in enzyme catalysis.

    Keiichi Fukuyama;Naoki Kunishima;Fumiko Amada;Tomomi Kubota

Frequent Co-Authors

Tomitake Tsukihara
Tomitake Tsukihara University of Hyogo
Hiroshi Matsubara
Hiroshi Matsubara Osaka Metropolitan University
Hideyuki Suzuki
Hideyuki Suzuki Kyoto Institute of Technology
Seiki Kuramitsu
Seiki Kuramitsu Osaka University
Toshiharu Hase
Toshiharu Hase Osaka University
Hidehiko Kumagai
Hidehiko Kumagai Ishikawa Prefectural University
Michael G. Rossmann
Michael G. Rossmann Purdue University West Lafayette
Graham Palmer
Graham Palmer Rice University
Isao Saito
Isao Saito Kyoto University
Ken Yamamoto
Ken Yamamoto Kurume University

External Links

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Best Scientists Citing Keiichi Fukuyama

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University of California, San Francisco

Publications: 30

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University of Wisconsin–Madison

Publications: 28

Thomas L. Poulos

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University of California, Irvine

Publications: 26

Masao Ikeda-Saito

Masao Ikeda-Saito

Tohoku University

Publications: 21

Frédéric Barras

Frédéric Barras

Institut Pasteur

Publications: 20

Susan S. Wallace

Susan S. Wallace

University of Vermont

Publications: 19

José J. G. Moura

José J. G. Moura

Universidade Nova de Lisboa

Publications: 18

Marc Fontecave

Marc Fontecave

Collège de France

Publications: 17

Annalisa Pastore

Annalisa Pastore

King's College London

Publications: 17

Isabel Moura

Isabel Moura

Universidade Nova de Lisboa

Publications: 16

Giulietta Smulevich

Giulietta Smulevich

University of Florence

Publications: 16

Donald A. Bryant

Donald A. Bryant

Pennsylvania State University

Publications: 15

Toshiharu Hase

Toshiharu Hase

Osaka University

Publications: 15

Karen G. Welinder

Karen G. Welinder

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Publications: 14

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University of Pittsburgh

Publications: 13

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Osaka University

Publications: 13

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