World's Best Scientists 2026 revealed!
Award Badge
Genetics and Molecular Biology
Germany
2024

D-Index & Metrics

Microbiology

D-Index
96
Citations
36850
World Ranking
503
National Ranking
234

Genetics

D-Index
95
Citations
35664
World Ranking
895
National Ranking
446

Jan Klein publication distribution in Microbiology in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Microbiology in 2026. The highlighted bar marks where Jan Klein sits on this spectrum.

55–64 publications: 8 scientists 65–74 publications: 29 scientists 75–84 publications: 55 scientists 85–94 publications: 112 scientists 95–104 publications: 137 scientists 105–114 publications: 190 scientists 115–124 publications: 235 scientists 125–134 publications: 234 scientists 135–144 publications: 288 scientists 145–154 publications: 264 scientists 155–164 publications: 264 scientists 165–174 publications: 253 scientists 175–184 publications: 276 scientists 185–194 publications: 190 scientists 195–204 publications: 233 scientists 205–214 publications: 207 scientists 215–224 publications: 198 scientists 225–234 publications: 155 scientists 235–244 publications: 161 scientists 245–254 publications: 160 scientists 255–264 publications: 146 scientists 265–274 publications: 139 scientists 275–284 publications: 148 scientists 285–294 publications: 115 scientists 295–304 publications: 96 scientists 305–314 publications: 88 scientists 315–324 publications: 106 scientists 325–334 publications: 65 scientists 335–344 publications: 76 scientists 345–354 publications: 64 scientists 355–364 publications: 62 scientists 365–374 publications: 65 scientists 375–384 publications: 61 scientists 385–394 publications: 34 scientists 395–404 publications: 44 scientists 405–414 publications: 36 scientists 415–424 publications: 35 scientists 425–434 publications: 29 scientists 435–444 publications: 33 scientists 445–454 publications: 34 scientists 455–464 publications: 25 scientists 465–474 publications: 26 scientists 475–484 publications: 20 scientists 485–494 publications: 19 scientists 495–504 publications: 16 scientists 505–514 publications: 17 scientists 515–524 publications: 23 scientists 525–534 publications: 14 scientists 535–544 publications: 14 scientists 545–554 publications: 18 scientists 555–564 publications: 12 scientists 565–574 publications: 7 scientists 575–584 publications: 9 scientists 585–594 publications: 9 scientists 595–604 publications: 9 scientists 605–614 publications: 7 scientists 615–624 publications: 9 scientists 625–634 publications: 7 scientists 635–644 publications: 4 scientists 645–654 publications: 5 scientists 655–664 publications: 6 scientists 665–674 publications: 7 scientists 675–678 publications: 3 scientists 679+ publications: 99 scientists
55 publications 679+

This scientist: 549 publications — 96th percentile

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

The last bar groups every scientist with 679 publications or more.

Jan Klein D-index placement in Microbiology in 2026

The chart shows the D-index (discipline H-index) distribution of Microbiology scientists ranked by Research.com in 2026. The highlighted bar marks where Jan Klein sits on this spectrum.

40 D-Index: 30 scientists 41 D-Index: 86 scientists 42 D-Index: 90 scientists 43 D-Index: 117 scientists 44 D-Index: 122 scientists 45 D-Index: 123 scientists 46 D-Index: 108 scientists 47 D-Index: 110 scientists 48 D-Index: 106 scientists 49 D-Index: 109 scientists 50 D-Index: 129 scientists 51 D-Index: 111 scientists 52 D-Index: 116 scientists 53 D-Index: 127 scientists 54 D-Index: 134 scientists 55 D-Index: 134 scientists 56 D-Index: 111 scientists 57 D-Index: 136 scientists 58 D-Index: 162 scientists 59 D-Index: 151 scientists 60 D-Index: 139 scientists 61 D-Index: 122 scientists 62 D-Index: 126 scientists 63 D-Index: 144 scientists 64 D-Index: 109 scientists 65 D-Index: 103 scientists 66 D-Index: 124 scientists 67 D-Index: 112 scientists 68 D-Index: 103 scientists 69 D-Index: 131 scientists 70 D-Index: 93 scientists 71 D-Index: 93 scientists 72 D-Index: 96 scientists 73 D-Index: 92 scientists 74 D-Index: 80 scientists 75 D-Index: 66 scientists 76 D-Index: 87 scientists 77 D-Index: 60 scientists 78 D-Index: 73 scientists 79 D-Index: 59 scientists 80 D-Index: 57 scientists 81 D-Index: 55 scientists 82 D-Index: 47 scientists 83 D-Index: 77 scientists 84 D-Index: 50 scientists 85 D-Index: 45 scientists 86 D-Index: 42 scientists 87 D-Index: 41 scientists 88 D-Index: 32 scientists 89 D-Index: 38 scientists 90 D-Index: 35 scientists 91 D-Index: 34 scientists 92 D-Index: 27 scientists 93 D-Index: 26 scientists 94 D-Index: 33 scientists 95 D-Index: 22 scientists 96 D-Index: 37 scientists 97 D-Index: 22 scientists 98 D-Index: 21 scientists 99 D-Index: 22 scientists 100 D-Index: 30 scientists 101 D-Index: 16 scientists 102 D-Index: 20 scientists 103 D-Index: 17 scientists 104 D-Index: 19 scientists 105 D-Index: 16 scientists 106 D-Index: 19 scientists 107 D-Index: 18 scientists 108 D-Index: 14 scientists 109 D-Index: 10 scientists 110 D-Index: 9 scientists 111 D-Index: 7 scientists 112 D-Index: 11 scientists 113 D-Index: 6 scientists 114 D-Index: 15 scientists 115 D-Index: 10 scientists 116 D-Index: 12 scientists 117 D-Index: 7 scientists 118 D-Index: 10 scientists 119 D-Index: 10 scientists 120 D-Index: 11 scientists 121 D-Index: 2 scientists 122 D-Index: 7 scientists 123 D-Index: 12 scientists 124 D-Index: 5 scientists 125 D-Index: 9 scientists 126 D-Index: 6 scientists 127+ D-Index: 95 scientists
40 D-Index 127+

This scientist: 96 D-Index — 91st percentile

91% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 127 D-Index or more.

Research.com Recognitions

  • 2024 - Research.com Genetics and Molecular Biology in Germany Leader Award
  • 1987 - Fellow of the American Association for the Advancement of Science (AAAS)

Overview

Jan Klein was affiliated with Pennsylvania State University in the United States. Their scholarly contributions spanned multiple fields including aquatic science, pulmonary and respiratory medicine, management science and operations research, artificial intelligence, and statistics and probability.

Their research encompassed a variety of topics with a focus on innovations in aquaponics and hydroponics systems, constructed wetlands for wastewater treatment, water quality monitoring technologies, aquaculture nutrition and growth, aquatic ecosystems and biodiversity, as well as kidney stones and urolithiasis treatments, and pediatric urology and nephrology studies.

Notable recent publications by Jan Klein included:

  • Utilization of Sludge from African Catfish (Clarias gariepinus) Recirculating Aquaculture Systems for Vermifiltration, 2023, Sustainability
  • Enhancing energy recovery from aquaculture residual materials: a focus on anaerobic digestion of African catfish (Clarias gariepinus) sediment sludge, 2024, Frontiers in Sustainable Food Systems

Frequent coauthors collaborating with Jan Klein were Adrian A. Bischoff, Sandjai Bhulai, Rob van der Mei, Andrea Schüch, and Michael Nelles.

Jan Klein's research was published in various venues, notably:

  • arXiv (Cornell University)
  • Sustainability
  • Frontiers in Sustainable Food Systems
  • Mini-invasive Surgery
  • AHFE International

They received recognition as a Fellow of the American Association for the Advancement of Science (AAAS) in 1987.

Best Publications

  • Natural history of the major histocompatibility complex

    Jan Klein

  • Biology of the Mouse Histocompatibility-2 Complex

    Jan Klein

  • The HLA system. First of two parts.

    J. A. N. Klein;Akie Sato

  • On the thymus in the differentiation of "H-2 self-recognition" by T cells: evidence for dual recognition?

    R M Zinkernagel;R M Zinkernagel;R M Zinkernagel;G N Callahan;G N Callahan;G N Callahan;A Althage;A Althage;A Althage;S Cooper;S Cooper;S Cooper

  • Nomenclature for the major histocompatibility complexes of different species: a proposal

    Jan Klein;Ronald E. Bontrop;Roger L. Dawkins;Henry A. Erlich

  • Bracteomania, an inflorescence anomaly, is caused by the loss of function of the MADS-box gene squamosa in Antirrhinum majus.

    P. Huijser;J. Klein;W.E. Lönnig;H. Meijer

  • Origin of major histocompatibility complex polymorphism: the trans-species hypothesis.

    Jan Klein

  • The HLA system. Second of two parts.

    Jan Klein;Akie Sato

  • The major histocompatibility complex of the mouse.

    Jan Klein

  • Immunology: The science of self-nonself discrimination

    Jan Klein

  • Genetic control of the immune response. Mapping of the Ir-1 locus.

    Hugh O. McDevitt;Beverly D. Deak;Donald C. Shreffler;Jan Klein

  • Evolution of the major histocompatibility complex.

    Jan Klein;F. Figueroa

  • The traditional and a new version of the mouse H-2 complex

    Jan Klein;Antonio JuretiĆ;Antonio JuretiĆ;Constantin N. Baxevanis;Zoltan A. Nagy

  • The Molecular Descent of the Major Histocompatibility Complex

    Jan Klein;Yoko Satta;Colm O'Huigin;Naoyuki Takahata

  • MHC polymorphism pre-dating speciation.

    Felipe Figueroa;Eberhardt Gúnther;Jan Klein;Jan Klein

  • MOLECULAR TRANS-SPECIES POLYMORPHISM

    Jan Klein;Akie Sato;Sandra Nagl;Colm O'hUigín

  • H-2 haplotypes, genes and antigens: second listing. II. The H-2 complex.

    Jan Klein;Felipe Figueroa;Chella S. David

  • Nucleotide sequences of chimpanzee MHC class I alleles: evidence for trans-species mode of evolution.

    W E Mayer;M Jonker;D Klein;P Ivanyi

  • Divergence Time and Population Size in the Lineage Leading to Modern Humans

    Naoyuki Takahata;Yoko Satta;Jan Klein

  • CELL-MEDIATED LYMPHOLYSIS IMPORTANCE OF SEROLOGICALLY DEFINED H-2 REGIONS

    Barbara J. Alter;Barbara J. Alter;Dolores J. Schendel;Dolores J. Schendel;Marilyn L. Bach;Marilyn L. Bach;Fritz H. Bach;Fritz H. Bach

Frequent Co-Authors

Felipe Figueroa
Felipe Figueroa Max Planck Society
Colm O'hUigin
Colm O'hUigin Leidos (United States)
Yoko Satta
Yoko Satta The Graduate University for Advanced Studies, SOKENDAI
Edward K. Wakeland
Edward K. Wakeland The University of Texas Southwestern Medical Center
Holger Sültmann
Holger Sültmann German Cancer Research Center
Peter Walden
Peter Walden Charité - University Medicine Berlin
Max D. Cooper
Max D. Cooper Emory University
Masanori Kasahara
Masanori Kasahara Hokkaido University
Zlatko Dembic
Zlatko Dembic University of Oslo
Peter R. Grant
Peter R. Grant Princeton University

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

Exploring microbiology opens doors to diverse career paths, many of which can be enhanced through related online degrees. For instance, healthcare roles such as child specialists offer rewarding opportunities, and understanding the child specialist salary can help guide your educational investments. Professionals interested in clinical aspects may also consider paths like becoming a functional medicine nurse practitioner, where knowledge of biological sciences is crucial. If you're curious about earning potential in that field, the functional medicine np salary provides valuable insights.

Furthermore, microbiology graduates can pivot to allied health roles, including medical coding. This career benefits from understanding medical terminology and data management, with the cpc medical coding salary reflecting strong demand in healthcare administration.

For individuals overcoming past challenges, it's encouraging to know there are college degrees for felons that lead to stable careers in science and health. Online education provides flexible options to build skills and advance in fields connected to microbiology, making it accessible for a wide range of learners.

Best Scientists Citing Jan Klein

Recently Published Articles