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Keiichi I. Nakayama

Keiichi I. Nakayama

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Genetics and Molecular Biology
Japan
2024

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Molecular Biology 122 242 221 17 16 527 55058

Keiichi I. Nakayama publications per year

The chart shows the history of publications by Keiichi I. Nakayama between 1989 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Keiichi I. Nakayama published across 37 years, from 1989 to 2025, averaging 16.5 papers a year. Output peaked at 33 publications in 2004. 38 of the 611 publications appeared in the last two years.

No. of publications
10 20 30
Bar chart. Horizontal axis: year, 1989 to 2025. Vertical axis: number of publications, 0 to 33. Peak 33 publications in 2004. 1989: 2 publications 1990: 1 publication 1991: 4 publications 1992: 3 publications 1993: 4 publications 1994: 2 publications 1995: 6 publications 1996: 3 publications 1997: 2 publications 1998: 6 publications 1999: 10 publications 2000: 10 publications 2001: 13 publications 2002: 16 publications 2003: 23 publications 2004: 33 publications 2005: 25 publications 2006: 30 publications 2007: 26 publications 2008: 22 publications 2009: 27 publications 2010: 26 publications 2011: 24 publications 2012: 25 publications 2013: 15 publications 2014: 19 publications 2015: 17 publications 2016: 30 publications 2017: 31 publications 2018: 21 publications 2019: 20 publications 2020: 26 publications 2021: 15 publications 2022: 8 publications 2023: 28 publications 2024: 20 publications 2025: 18 publications
1989 2025

611 publications in total across all disciplines

View publications per year as a table
Keiichi I. Nakayama: publications per year, 1989 to 2025
Year Publications
1989 2
1990 1
1991 4
1992 3
1993 4
1994 2
1995 6
1996 3
1997 2
1998 6
1999 10
2000 10
2001 13
2002 16
2003 23
2004 33
2005 25
2006 30
2007 26
2008 22
2009 27
2010 26
2011 24
2012 25
2013 15
2014 19
2015 17
2016 30
2017 31
2018 21
2019 20
2020 26
2021 15
2022 8
2023 28
2024 20
2025 18
Total 611
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Keiichi I. Nakayama publication distribution in Molecular Biology in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Molecular Biology in 2026. The highlighted bar marks where Keiichi I. Nakayama sits on this spectrum.

No. of scientists
50 100 150
Bar chart with 53 bars. Horizontal axis: publications, 47–56 to 564+. Vertical axis: number of scientists, 0 to 177. Most scientists, 177, have 117–126 publications. The last bar groups every scientist with 564 publications or more. The highlighted bar, 527–536 publications, is where this scientist sits. 47–56 publications: 7 scientists 57–66 publications: 17 scientists 67–76 publications: 65 scientists 77–86 publications: 90 scientists 87–96 publications: 125 scientists 97–106 publications: 131 scientists 107–116 publications: 162 scientists 117–126 publications: 177 scientists 127–136 publications: 158 scientists 137–146 publications: 158 scientists 147–156 publications: 146 scientists 157–166 publications: 159 scientists 167–176 publications: 131 scientists 177–186 publications: 110 scientists 187–196 publications: 112 scientists 197–206 publications: 100 scientists 207–216 publications: 89 scientists 217–226 publications: 98 scientists 227–236 publications: 74 scientists 237–246 publications: 72 scientists 247–256 publications: 63 scientists 257–266 publications: 53 scientists 267–276 publications: 54 scientists 277–286 publications: 49 scientists 287–296 publications: 52 scientists 297–306 publications: 43 scientists 307–316 publications: 46 scientists 317–326 publications: 41 scientists 327–336 publications: 42 scientists 337–346 publications: 31 scientists 347–356 publications: 28 scientists 357–366 publications: 29 scientists 367–376 publications: 26 scientists 377–386 publications: 24 scientists 387–396 publications: 24 scientists 397–406 publications: 14 scientists 407–416 publications: 13 scientists 417–426 publications: 20 scientists 427–436 publications: 12 scientists 437–446 publications: 20 scientists 447–456 publications: 11 scientists 457–466 publications: 10 scientists 467–476 publications: 14 scientists 477–486 publications: 14 scientists 487–496 publications: 10 scientists 497–506 publications: 13 scientists 507–516 publications: 13 scientists 517–526 publications: 2 scientists 527–536 publications: 4 scientists 537–546 publications: 6 scientists 547–556 publications: 8 scientists 557–563 publications: 6 scientists 564+ publications: 100 scientists
47–56 publications 564+

This scientist: 527 publications — 96th percentile

96% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 564 publications or more.

View publications distribution as a table
Number of Molecular Biology scientists by publication count, Research.com 2026 ranking edition. Based on 3,076 ranked scientists.
Publications Scientists This scientist
47–56 7
57–66 17
67–76 65
77–86 90
87–96 125
97–106 131
107–116 162
117–126 177
127–136 158
137–146 158
147–156 146
157–166 159
167–176 131
177–186 110
187–196 112
197–206 100
207–216 89
217–226 98
227–236 74
237–246 72
247–256 63
257–266 53
267–276 54
277–286 49
287–296 52
297–306 43
307–316 46
317–326 41
327–336 42
337–346 31
347–356 28
357–366 29
367–376 26
377–386 24
387–396 24
397–406 14
407–416 13
417–426 20
427–436 12
437–446 20
447–456 11
457–466 10
467–476 14
477–486 14
487–496 10
497–506 13
507–516 13
517–526 2
527–536 4 527
537–546 6
547–556 8
557–563 6
564+ 100
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Keiichi I. Nakayama D-index placement in Molecular Biology in 2026

The chart shows the D-index (discipline H-index) distribution of Molecular Biology scientists ranked by Research.com in 2026. The highlighted bar marks where Keiichi I. Nakayama sits on this spectrum.

No. of scientists
25 50 75 100 125
Bar chart with 54 bars. Horizontal axis: D-Index, 40–41 to 145+. Vertical axis: number of scientists, 0 to 131. Most scientists, 131, have 64–65 D-Index. The last bar groups every scientist with 145 D-Index or more. The highlighted bar, 122–123 D-Index, is where this scientist sits. 40–41 D-Index: 36 scientists 42–43 D-Index: 101 scientists 44–45 D-Index: 115 scientists 46–47 D-Index: 121 scientists 48–49 D-Index: 118 scientists 50–51 D-Index: 130 scientists 52–53 D-Index: 106 scientists 54–55 D-Index: 116 scientists 56–57 D-Index: 113 scientists 58–59 D-Index: 129 scientists 60–61 D-Index: 120 scientists 62–63 D-Index: 105 scientists 64–65 D-Index: 131 scientists 66–67 D-Index: 95 scientists 68–69 D-Index: 97 scientists 70–71 D-Index: 106 scientists 72–73 D-Index: 83 scientists 74–75 D-Index: 89 scientists 76–77 D-Index: 77 scientists 78–79 D-Index: 70 scientists 80–81 D-Index: 73 scientists 82–83 D-Index: 60 scientists 84–85 D-Index: 48 scientists 86–87 D-Index: 45 scientists 88–89 D-Index: 50 scientists 90–91 D-Index: 31 scientists 92–93 D-Index: 51 scientists 94–95 D-Index: 43 scientists 96–97 D-Index: 38 scientists 98–99 D-Index: 39 scientists 100–101 D-Index: 41 scientists 102–103 D-Index: 29 scientists 104–105 D-Index: 33 scientists 106–107 D-Index: 35 scientists 108–109 D-Index: 20 scientists 110–111 D-Index: 38 scientists 112–113 D-Index: 19 scientists 114–115 D-Index: 28 scientists 116–117 D-Index: 13 scientists 118–119 D-Index: 23 scientists 120–121 D-Index: 16 scientists 122–123 D-Index: 15 scientists 124–125 D-Index: 11 scientists 126–127 D-Index: 21 scientists 128–129 D-Index: 7 scientists 130–131 D-Index: 13 scientists 132–133 D-Index: 14 scientists 134–135 D-Index: 17 scientists 136–137 D-Index: 9 scientists 138–139 D-Index: 8 scientists 140–141 D-Index: 16 scientists 142–143 D-Index: 7 scientists 144 D-Index: 7 scientists 145+ D-Index: 100 scientists
40–41 D-Index 145+

This scientist: 122 D-Index — 92nd percentile

92% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 145 D-Index or more.

View D-Index distribution as a table
Number of Molecular Biology scientists by D-index, Research.com 2026 ranking edition. Based on 3,076 ranked scientists.
D-Index Scientists This scientist
40–41 36
42–43 101
44–45 115
46–47 121
48–49 118
50–51 130
52–53 106
54–55 116
56–57 113
58–59 129
60–61 120
62–63 105
64–65 131
66–67 95
68–69 97
70–71 106
72–73 83
74–75 89
76–77 77
78–79 70
80–81 73
82–83 60
84–85 48
86–87 45
88–89 50
90–91 31
92–93 51
94–95 43
96–97 38
98–99 39
100–101 41
102–103 29
104–105 33
106–107 35
108–109 20
110–111 38
112–113 19
114–115 28
116–117 13
118–119 23
120–121 16
122–123 15 122
124–125 11
126–127 21
128–129 7
130–131 13
132–133 14
134–135 17
136–137 9
138–139 8
140–141 16
142–143 7
144 7
145+ 100
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Research.com Recognitions

  • 2024 - Research.com Genetics and Molecular Biology in Japan Leader Award

Overview

Keiichi I. Nakayama is affiliated with Kyushu University in Japan and has an extensive research portfolio primarily focused on materials science and engineering. Their work encompasses the study of materials chemistry, electrical and electronic engineering, and organic chemistry, with notable contributions to polymers and plastics as well.

The main scientific topics explored by Nakayama include:

  • Organic Electronics and Photovoltaics
  • Crystallization and Solubility Studies
  • X-ray Diffraction in Crystallography
  • Conducting Polymers and Applications
  • Organic Light-Emitting Diodes Research
  • Synthesis and Properties of Aromatic Compounds
  • Molecular Junctions and Nanostructures

Nakayama's recent publications reflect a focus on organic optoelectronic materials and structural chemistry. Some of their significant recent papers are:

  • "Delayed fluorescence from inverted singlet and triplet excited states" (2022), Nature
  • "Inverted singlet-triplet emitters for organic light-emitting diodes" (2023), Chemical Physics Reviews
  • "Green-Light Wavelength-Selective Organic Solar Cells Based on Poly(3-hexylthiophene) and Naphthobisthiadiazole-Containing Acceptors toward Agrivoltaics" (2023), ACS Sustainable Chemistry & Engineering
  • "Synthesis, Structure, and Chiroptical Properties of Indolo- and Pyridopyrrolo-Carbazole-Based C2-Symmetric Azahelicenes" (2021), Chemistry - A European Journal
  • "Synthesis and Characterization of Dibenzothieno[a,f]pentalenes Enabling Large Antiaromaticity and Moderate Open-Shell Character through a Small Energy Barrier for Bond-Shift Valence Tautomerization" (2023), Journal of the American Chemical Society

Nakayama has frequently published in the following venues:

  • The Cambridge Structural Database (11 publications)
  • Journal of the American Chemical Society (4 publications)
  • ACS Omega (2 publications)
  • Nature (1 publication)
  • Chemical Physics Reviews (1 publication)

Throughout their career, Nakayama has collaborated often with several researchers, contributing to multiple co-authored works. Frequent coauthors include:

  • Mitsuharu Suzuki (18 joint publications)
  • Akihito Konishi (11 joint publications)
  • Makoto Yasuda (11 joint publications)
  • Yusuke Mizuno (10 joint publications)
  • Akira Nogata (10 joint publications)

Best Publications

  • Mice Lacking p27Kip1 Display Increased Body Size, Multiple Organ Hyperplasia, Retinal Dysplasia, and Pituitary Tumors

    Keiko Nakayama;Keiko Nakayama;Noriko Ishida;Michiko Shirane;Akira Inomata

  • Massive cell death of immature hematopoietic cells and neurons in Bcl-x-deficient mice

    Noboru Motoyama;Fanping Wang;Kevin A. Roth;Hirofumi Sawa

  • Foxo3a is essential for maintenance of the hematopoietic stem cell pool.

    Kana Miyamoto;Kiyomi Y. Araki;Kazuhito Naka;Fumio Arai

  • Phosphorylation-dependent degradation of c-Myc is mediated by the F-box protein Fbw7.

    Masayoshi Yada;Shigetsugu Hatakeyama;Takumi Kamura;Masaaki Nishiyama

  • Targeted disruption of Skp2 results in accumulation of cyclin E and p27 (Kip1), polyploidy and centrosome overduplication

    Keiko Nakayama;Hiroyasu Nagahama;Yohji A. Minamishima;Masaki Matsumoto

  • An F-box protein, FWD1, mediates ubiquitin-dependent proteolysis of β-catenin

    Masatoshi Kitagawa;Shigetsugu Hatakeyama;Michiko Shirane;Masaki Matsumoto

  • U Box Proteins as a New Family of Ubiquitin-Protein Ligases

    Shigetsugu Hatakeyama;Masayoshi Yada;Masaki Matsumoto;Noriko Ishida

  • SCF FBW7 regulates cellular apoptosis by targeting MCL1 for ubiquitylation and destruction

    Hiroyuki Inuzuka;Shavali Shaik;Ichiro Onoyama;Darning Gao

  • Essential role for ZAP-70 in both positive and negative selection of thymocytes

    Izumi Negishi;Izumi Negishi;Izumi Negishi;Noboru Motoyama;Kei Ichi Nakayama;Kei Ichi Nakayama;Kei Ichi Nakayama;Keiko Nakayama;Keiko Nakayama;Keiko Nakayama

  • Aberrant cell cycle checkpoint function and early embryonic death in Chk1 −/− mice

    Hiroyuki Takai;Kaoru Tominaga;Noboru Motoyama;Yohji A. Minamishima

  • CHIP Is Associated with Parkin, a Gene Responsible for Familial Parkinson's Disease, and Enhances Its Ubiquitin Ligase Activity

    Yuzuru Imai;Mariko Soda;Shigetsugu Hatakeyama;Takumi Akagi

  • The F-Box Protein Skp2 Participates in c-Myc Proteosomal Degradation and Acts as a Cofactor for c-Myc-Regulated Transcription

    Natalie Von Der Lehr;Sara Johansson;Siqin Wu;Fuad Bahram

  • Mitogenic signalling and the p16INK4a-Rb pathway cooperate to enforce irreversible cellular senescence.

    Akiko Takahashi;Naoko Ohtani;Kimi Yamakoshi;Shin Ichi Iida

  • VHL-box and SOCS-box domains determine binding specificity for Cul2-Rbx1 and Cul5-Rbx2 modules of ubiquitin ligases

    Takumi Kamura;Katsumi Maenaka;Shuhei Kotoshiba;Masaki Matsumoto

  • mTORC1 and muscle regeneration are regulated by the LINC00961-encoded SPAR polypeptide

    Akinobu Matsumoto;Alessandra Pasut;Masaki Matsumoto;Riu Yamashita

  • Phosphorylation of β-Catenin by Cyclic AMP-Dependent Protein Kinase Stabilizes β-Catenin through Inhibition of Its Ubiquitination

    Shin Ichiro Hino;Chie Tanji;Keiichi I. Nakayama;Akira Kikuchi

  • Targeted disruption of Bcl-2 alpha beta in mice: occurrence of gray hair, polycystic kidney disease, and lymphocytopenia

    K Nakayama;I Negishi;K Kuida;H Sawa

  • Disappearance of the lymphoid system in Bcl-2 homozygous mutant chimeric mice.

    Kei Ichi Nakayama;Keiko Nakayama;Izumi Negishi;Keisuke Kuida

  • Restoration of T cell development in RAG-2-deficient mice by functional TCR transgenes

    Yoichi Shinkai;Shigeo Koyasu;Kei Ichi Nakayama;Kenneth M. Murphy

  • NAK is an IκB kinase-activating kinase

    Yuichiro Tojima;Atsushi Fujimoto;Mireille Delhase;Yi Chen

Frequent Co-Authors

Shigetsugu Hatakeyama
Shigetsugu Hatakeyama Hokkaido University
Keiko Nakayama
Keiko Nakayama Tohoku University
Masatoshi Kitagawa
Masatoshi Kitagawa Hamamatsu University
Dennis Y. Loh
Dennis Y. Loh Washington University in St. Louis
Hiromitsu Nakauchi
Hiromitsu Nakauchi Stanford University
Kazuya Shimoda
Kazuya Shimoda University of Miyazaki
Masato Hirata
Masato Hirata Fukuoka Dental College
Shinya Kuroda
Shinya Kuroda University of Tokyo
Hui Kuan Lin
Hui Kuan Lin Wake Forest University
Tomoyoshi Soga
Tomoyoshi Soga Keio University

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