World's Best Scientists 2026 revealed!

D-Index & Metrics

Chemistry

D-Index
52
Citations
16396
World Ranking
13363
National Ranking
3499

Jan Kern 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 Jan Kern 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: 190 publications — 29th percentile

29% of scientists in this discipline score the same or lower.

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

Jan Kern 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 Jan Kern 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: 52 D-Index — 26th percentile

26% of scientists in this discipline score the same or lower.

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

Overview

Jan Kern is affiliated with the Lawrence Berkeley National Laboratory in the United States. Their primary research spans the fields of Biochemistry, Genetics and Molecular Biology, as well as Physics and Astronomy. Within these areas, their work focuses on subfields such as Molecular Biology, Materials Chemistry, Atomic and Molecular Physics and Optics, Radiation, and Structural Biology.

The scientist has contributed extensively to several research topics, including:

  • Photosynthetic Processes and Mechanisms
  • Enzyme Structure and Function
  • Spectroscopy and Quantum Chemical Studies
  • Advanced Electron Microscopy Techniques and Applications
  • Photoreceptor and Optogenetics Research
  • Advanced X-ray Imaging Techniques
  • X-ray Spectroscopy and Fluorescence Analysis

Among Jan Kern's recent publications are the following:

  • Untangling the sequence of events during the S 2 → S 3 transition in photosystem II and implications for the water oxidation mechanism, 2020, Proceedings of the National Academy of Sciences
  • Solar energy conversion by photosystem II: principles and structures, 2023, Photosynthesis Research
  • Structural evidence for intermediates during O2 formation in photosystem II, 2023, Nature
  • Structural dynamics in the water and proton channels of photosystem II during the S2 to S3 transition, 2021, Nature Communications
  • Using X-ray free-electron lasers for spectroscopy of molecular catalysts and metalloenzymes, 2021, Nature Reviews Physics

Kern frequently collaborates with a core group of coauthors. These include Junko Yano, Vittal K. Yachandra, Nicholas K. Sauter, Asmit Bhowmick, and Franklin D. Fuller.

The scientist's work has appeared predominantly in notable publication venues, including:

  • Structural Dynamics
  • Photosynthesis Research
  • Journal of the American Chemical Society
  • Proceedings of the National Academy of Sciences
  • Nature

Best Publications

  • Crystal structure of photosystem II from Synechococcus elongatus at 3.8 A resolution.

    Athina Zouni;Horst Tobias Witt;Jan Kern;Petra Fromme

  • Towards complete cofactor arrangement in the 3.0 Å resolution structure of photosystem II

    Bernhard Loll;Jana Kern;Wolfram Saenger;Athina Zouni

  • Cyanobacterial photosystem II at 2.9-Å resolution and the role of quinones, lipids, channels and chloride

    Albert Guskov;Jan Kern;Jan Kern;Azat Gabdulkhakov;Matthias Broser

  • Where water is oxidized to dioxygen: structure of the photosynthetic Mn4Ca cluster.

    Junko Yano;Jan Kern;Kenneth Sauer;Kenneth Sauer;Matthew J. Latimer

  • X-ray damage to the Mn4Ca complex in single crystals of photosystem II: A case study for metalloprotein crystallography

    Junko Yano;Jana Kern;Klaus−Dieter Irrgang;Matthew J. Latimer

  • Structures of the intermediates of Kok's photosynthetic water oxidation clock.

    Jan Kern;Ruchira Chatterjee;Iris D. Young;Franklin D. Fuller

  • Simultaneous Femtosecond X-ray Spectroscopy and Diffraction of Photosystem II at Room Temperature

    Jan Kern;Jan Kern;Roberto Alonso-Mori;Rosalie Tran;Johan Hattne

  • Structure of photosystem II and substrate binding at room temperature

    Iris D. Young;Mohamed Ibrahim;Ruchira Chatterjee;Sheraz Gul

  • Crystal Structure of Cyanobacterial Photosystem II at 3.2 A Resolution: A Closer Look at the Mn- Cluster

    Jacek Biesiadka;Bernhard Loll;Jan Kern;Klaus-Dieter Irrgang

  • Taking snapshots of photosynthetic water oxidation using femtosecond X-ray diffraction and spectroscopy

    Jan Kern;Rosalie Tran;Roberto Alonso-Mori;Sergey Koroidov

  • Nanoflow electrospinning serial femtosecond crystallography

    Raymond G Sierra;Hartawan Laksmono;Jan Kern;Rosalie Tran

  • Untangling the sequence of events during the S2 → S3 transition in photosystem II and implications for the water oxidation mechanism

    Mohamed Ibrahim;Thomas Fransson;Ruchira Chatterjee;Mun Hon Cheah

  • Drop-on-demand sample delivery for studying biocatalysts in action at X-ray free-electron lasers

    Franklin D Fuller;Sheraz Gul;Ruchira Chatterjee;E Sethe Burgie

  • Photosystem II: Structure and mechanism of the water:plastoquinone oxidoreductase

    Jan Kern;Gernot Renger

  • Purification, characterisation and crystallisation of photosystem II from Thermosynechococcus elongatus cultivated in a new type of photobioreactor

    J. Kern;B. Loll;C. Lüneberg;D. DiFiore

  • Room temperature femtosecond X-ray diffraction of photosystem II microcrystals

    Jan Kern;Roberto Alonso-Mori;Julia Hellmich;Rosalie Tran

  • Solar energy conversion by photosystem II: principles and structures

    Unknown

  • Accurate macromolecular structures using minimal measurements from X-ray free-electron lasers

    Johan Hattne;Nathaniel Echols;Rosalie Tran;Jan Kern

  • Structural evidence for intermediates during O2 formation in photosystem II

    Unknown

  • Structural Changes of the Oxygen-evolving Complex in Photosystem II during the Catalytic Cycle

    Carina Glöckner;Jan Kern;Matthias Broser;Athina Zouni

  • A multi-crystal wavelength dispersive x-ray spectrometer.

    Roberto Alonso-Mori;Jan Kern;Dimosthenis Sokaras;Tsu-Chien Weng

  • Lipids in photosystem II: interactions with protein and cofactors.

    Bernhard Loll;Jana Kern;Wolfram Saenger;Athina Zouni

Frequent Co-Authors

Junko Yano
Junko Yano Lawrence Berkeley National Laboratory
Vittal K. Yachandra
Vittal K. Yachandra Lawrence Berkeley National Laboratory
Athina Zouni
Athina Zouni Humboldt-Universität zu Berlin
Uwe Bergmann
Uwe Bergmann SLAC National Accelerator Laboratory
Johannes Messinger
Johannes Messinger Umeå University
Dimosthenis Sokaras
Dimosthenis Sokaras SLAC National Accelerator Laboratory
Paul D. Adams
Paul D. Adams Lawrence Berkeley National Laboratory
Wolfram Saenger
Wolfram Saenger Freie Universität Berlin
Holger Dobbek
Holger Dobbek Humboldt-Universität zu Berlin
Pieter Glatzel
Pieter Glatzel European Synchrotron Radiation Facility

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