World's Best Scientists 2026 revealed!
Kiyohiko Igarashi

Kiyohiko Igarashi

D-Index & Metrics

Biology and Biochemistry

D-Index
55
Citations
10555
World Ranking
15092
National Ranking
1065

Chemistry

D-Index
55
Citations
10536
World Ranking
12161
National Ranking
911

Kiyohiko Igarashi 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 Kiyohiko Igarashi 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: 224 publications — 41st percentile

41% of scientists in this discipline score the same or lower.

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

Kiyohiko Igarashi 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 Kiyohiko Igarashi 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: 55 D-Index — 33rd percentile

33% of scientists in this discipline score the same or lower.

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

Overview

Kiyohiko Igarashi is affiliated with the University of Tokyo in Japan. Their research primarily spans the fields of Biochemistry, Genetics and Molecular Biology, and Engineering. Within these broader areas, their work focuses on subfields such as Molecular Biology, Biomedical Engineering, Biotechnology, Biomaterials, and Plant Science.

Their research topics include biofuel production and bioconversion, enzyme production and characterization, enzyme catalysis and immobilization, advanced cellulose research studies, microbial metabolic engineering and bioproduction, polysaccharides and plant cell walls, and microbial metabolites in food biotechnology.

Significant publication venues for Igarashi's work include the Journal of Applied Glycoscience, bioRxiv (Cold Spring Harbor Laboratory), Carbohydrate Polymers, Journal of Biological Chemistry, and the Bulletin of Applied Glycoscience.

Frequent co-authors collaborating with Igarashi include:

  • Naoki Sunagawa
  • Masahiro Samejima
  • Taku Uchiyama
  • Satoshi Kaneko
  • Nobuhumi Nakamura

Igarashi has contributed to numerous papers, some of the notable recent publications are:

  • Convergent evolution of processivity in bacterial and fungal cellulases, 2020, Proceedings of the National Academy of Sciences
  • Lytic polysaccharide monooxygenase increases cellobiohydrolases activity by promoting decrystallization of cellulose surface, 2022, Science Advances
  • An amperometric biosensor of L-fucose in urine for the first screening test of cancer, 2020, Biosensors and Bioelectronics
  • In Vitro Synthesis and Self-Assembly of Cellulose II Nanofibrils Catalyzed by the Reverse Reaction of Clostridium thermocellum Cellodextrin Phosphorylase, 2020, Biomacromolecules
  • Domain architecture divergence leads to functional divergence in binding and catalytic domains of bacterial and fungal cellobiohydrolases, 2020, Journal of Biological Chemistry

Best Publications

  • The paleozoic origin of enzymatic lignin decomposition reconstructed from 31 fungal genomes

    Dimitrios Floudas;Manfred Binder;Robert Riley;Kerrie Barry

  • Traffic Jams Reduce Hydrolytic Efficiency of Cellulase on Cellulose Surface

    Kiyohiko Igarashi;Takayuki Uchihashi;Anu Koivula;Masahisa Wada;Masahisa Wada

  • Comparative genomics of Ceriporiopsis subvermispora and Phanerochaete chrysosporium provide insight into selective ligninolysis

    Elena Fernandez-Fueyo;Francisco J. Ruiz-Dueñas;Patricia Ferreira;Dimitrios Floudas

  • High Speed Atomic Force Microscopy Visualizes Processive Movement of Trichoderma reesei Cellobiohydrolase I on Crystalline Cellulose

    Kiyohiko Igarashi;Anu Koivula;Masahisa Wada;Satoshi Kimura

  • The putative endoglucanase PcGH61D from Phanerochaete chrysosporium is a metal-dependent oxidative enzyme that cleaves cellulose.

    Bjørge Westereng;Takuya Ishida;Takuya Ishida;Gustav Vaaje-Kolstad;Miao Wu

  • Crystal structure and computational characterization of the lytic polysaccharide monooxygenase GH61D from the basidiomycota fungus Phanerochaete chrysosporium

    Miao Wu;Gregg T. Beckham;Gregg T. Beckham;Anna M. Larsson;Takuya Ishida

  • Ten years of CAZypedia: a living encyclopedia of carbohydrate-active enzymes

    Wade Abbott;Orly Alber;Ed Bayer;Jean-Guy Berrin

  • Activation of crystalline cellulose to cellulose IIII results in efficient hydrolysis by cellobiohydrolase

    Kiyohiko Igarashi;Masahisa Wada;Masahiro Samejima

  • Comparative genomics of the white-rot fungi, Phanerochaete carnosa and P. chrysosporium, to elucidate the genetic basis of the distinct wood types they colonize

    Hitoshi Suzuki;Jacqueline MacDonald;Khajamohiddin Syed;Asaf Salamov

  • Genomewide analysis of polysaccharides degrading enzymes in 11 white- and brown-rot Polyporales provides insight into mechanisms of wood decay

    Chiaki Hori;Jill Gaskell;Kiyohiko Igarashi;Masahiro Samejima

  • Synthesis of highly ordered cellulose II in vitro using cellodextrin phosphorylase

    Masao Hiraishi;Kiyohiko Igarashi;Satoshi Kimura;Masahisa Wada

  • Molecular Cloning of a β-Galactosidase from Radish That Specifically Hydrolyzes β-(1→3)- and β-(1→6)-Galactosyl Residues of Arabinogalactan Protein

    Toshihisa Kotake;Soraya Dina;Tomoyuki Konishi;Satoshi Kaneko

  • Unidirectional processive action of cellobiohydrolase Cel7A on Valonia cellulose microcrystals

    Tomoya Imai;Claire Boisset;Masahiro Samejima;Kiyohiko Igarashi

  • Temporal Alterations in the Secretome of the Selective Ligninolytic Fungus Ceriporiopsis subvermispora during Growth on Aspen Wood Reveal This Organism's Strategy for Degrading Lignocellulose

    Chiaki Hori;Jill Gaskell;Kiyohiko Igarashi;Phil Kersten

  • Analysis of the Phlebiopsis gigantea Genome, Transcriptome and Secretome Provides Insight into Its Pioneer Colonization Strategies of Wood

    Chiaki Hori;Takuya Ishida;Kiyohiko Igarashi;Masahiro Samejima

  • Two-way traffic of glycoside hydrolase family 18 processive chitinases on crystalline chitin

    Kiyohiko Igarashi;Takayuki Uchihashi;Taku Uchiyama;Hayuki Sugimoto

  • Characterization of an endoglucanase belonging to a new subfamily of glycoside hydrolase family 45 of the basidiomycete Phanerochaete chrysosporium.

    Kiyohiko Igarashi;Takuya Ishida;Chiaki Hori;Masahiro Samejima

  • Cellobiose Dehydrogenase from the Fungi Phanerochaete chrysosporium and Humicola insolens: A FLAVOHEMOPROTEIN FROM HUMICOLA INSOLENS CONTAINS 6-HYDROXY-FAD AS THE DOMINANT ACTIVE COFACTOR

    Kiyohiko Igarashi;Marc F.J.M. Verhagen;Masahiro Samejima;Martin Schülein

  • Growth hormone and erythropoietin differentially activate DNA-binding proteins by tyrosine phosphorylation.

    D S Finbloom;E F Petricoin rd;R H Hackett;M David

  • Cellobiose dehydrogenase enhances Phanerochaete chrysosporium cellobiohydrolase I activity by relieving product inhibition

    Kiyohiko Igarashi;Masahiro Samejima;Karl Erik L. Eriksson

Frequent Co-Authors

Masahiro Samejima
Masahiro Samejima University of Tokyo
Hiroyuki Ohno
Hiroyuki Ohno Tokyo University of Agriculture and Technology
Shinya Fushinobu
Shinya Fushinobu University of Tokyo
Toshihisa Kotake
Toshihisa Kotake Saitama University
Takeshi Nishino
Takeshi Nishino Nippon Medical School
Motomitsu Kitaoka
Motomitsu Kitaoka Niigata University
Bernard Henrissat
Bernard Henrissat Technical University of Denmark
Pedro M. Coutinho
Pedro M. Coutinho Aix-Marseille University
Erika Lindquist
Erika Lindquist United States Department of Energy
Kerrie Barry
Kerrie Barry United States Department of Energy

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