World's Best Scientists 2026 revealed!
Michael Koomey

Michael Koomey

D-Index & Metrics

Biology and Biochemistry

D-Index
47
Citations
7469
World Ranking
18744
National Ranking
102

Michael Koomey publication distribution in Biology and Biochemistry in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Biology and Biochemistry in 2026. The highlighted bar marks where Michael Koomey sits on this spectrum.

47–56 publications: 8 scientists 57–66 publications: 35 scientists 67–76 publications: 106 scientists 77–86 publications: 231 scientists 87–96 publications: 414 scientists 97–106 publications: 546 scientists 107–116 publications: 704 scientists 117–126 publications: 849 scientists 127–136 publications: 980 scientists 137–146 publications: 942 scientists 147–156 publications: 969 scientists 157–166 publications: 950 scientists 167–176 publications: 951 scientists 177–186 publications: 915 scientists 187–196 publications: 787 scientists 197–206 publications: 841 scientists 207–216 publications: 735 scientists 217–226 publications: 709 scientists 227–236 publications: 651 scientists 237–246 publications: 605 scientists 247–256 publications: 510 scientists 257–266 publications: 524 scientists 267–276 publications: 434 scientists 277–286 publications: 418 scientists 287–296 publications: 350 scientists 297–306 publications: 363 scientists 307–316 publications: 315 scientists 317–326 publications: 296 scientists 327–336 publications: 261 scientists 337–346 publications: 240 scientists 347–356 publications: 219 scientists 357–366 publications: 197 scientists 367–376 publications: 154 scientists 377–386 publications: 161 scientists 387–396 publications: 155 scientists 397–406 publications: 145 scientists 407–416 publications: 124 scientists 417–426 publications: 112 scientists 427–436 publications: 132 scientists 437–446 publications: 116 scientists 447–456 publications: 99 scientists 457–466 publications: 81 scientists 467–476 publications: 91 scientists 477–486 publications: 80 scientists 487–496 publications: 80 scientists 497–506 publications: 60 scientists 507–516 publications: 36 scientists 517–526 publications: 46 scientists 527–536 publications: 54 scientists 537–546 publications: 44 scientists 547–556 publications: 43 scientists 557–566 publications: 43 scientists 567–576 publications: 42 scientists 577–586 publications: 25 scientists 587–596 publications: 34 scientists 597–606 publications: 23 scientists 607–616 publications: 33 scientists 617–626 publications: 31 scientists 627–636 publications: 27 scientists 637–646 publications: 25 scientists 647–656 publications: 28 scientists 657–666 publications: 34 scientists 667–676 publications: 18 scientists 677–686 publications: 16 scientists 687–696 publications: 10 scientists 697–706 publications: 12 scientists 707–716 publications: 21 scientists 717–726 publications: 12 scientists 727–736 publications: 12 scientists 737–746 publications: 10 scientists 747–756 publications: 7 scientists 757–766 publications: 13 scientists 767–776 publications: 15 scientists 777–786 publications: 13 scientists 787–796 publications: 9 scientists 797–806 publications: 9 scientists 807–816 publications: 7 scientists 817–826 publications: 4 scientists 827–836 publications: 9 scientists 837–846 publications: 7 scientists 847–856 publications: 3 scientists 857–866 publications: 5 scientists 867–876 publications: 5 scientists 877–886 publications: 11 scientists 887–896 publications: 3 scientists 897–906 publications: 4 scientists 907–916 publications: 7 scientists 917–926 publications: 5 scientists 927–936 publications: 6 scientists 937–946 publications: 6 scientists 947–956 publications: 3 scientists 957–966 publications: 7 scientists 967–976 publications: 2 scientists 977–986 publications: 2 scientists 987–996 publications: 1 scientists 997–1,006 publications: 5 scientists 1,007–1,016 publications: 2 scientists 1,017–1,026 publications: 2 scientists 1,027 publications: 1 scientists 1,028+ publications: 100 scientists
47 publications 1,028+

This scientist: 92 publications — 3rd percentile

3% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,028 publications or more.

Michael Koomey D-index placement in Biology and Biochemistry in 2026

The chart shows the D-index (discipline H-index) distribution of Biology and Biochemistry scientists ranked by Research.com in 2026. The highlighted bar marks where Michael Koomey sits on this spectrum.

40–41 D-Index: 80 scientists 42–43 D-Index: 183 scientists 44–45 D-Index: 317 scientists 46–47 D-Index: 504 scientists 48–49 D-Index: 718 scientists 50–51 D-Index: 900 scientists 52–53 D-Index: 1,026 scientists 54–55 D-Index: 1,150 scientists 56–57 D-Index: 1,236 scientists 58–59 D-Index: 1,253 scientists 60–61 D-Index: 1,163 scientists 62–63 D-Index: 1,131 scientists 64–65 D-Index: 1,032 scientists 66–67 D-Index: 897 scientists 68–69 D-Index: 814 scientists 70–71 D-Index: 715 scientists 72–73 D-Index: 709 scientists 74–75 D-Index: 596 scientists 76–77 D-Index: 512 scientists 78–79 D-Index: 473 scientists 80–81 D-Index: 412 scientists 82–83 D-Index: 373 scientists 84–85 D-Index: 358 scientists 86–87 D-Index: 285 scientists 88–89 D-Index: 273 scientists 90–91 D-Index: 227 scientists 92–93 D-Index: 208 scientists 94–95 D-Index: 193 scientists 96–97 D-Index: 153 scientists 98–99 D-Index: 157 scientists 100–101 D-Index: 148 scientists 102–103 D-Index: 120 scientists 104–105 D-Index: 113 scientists 106–107 D-Index: 100 scientists 108–109 D-Index: 86 scientists 110–111 D-Index: 67 scientists 112–113 D-Index: 72 scientists 114–115 D-Index: 73 scientists 116–117 D-Index: 64 scientists 118–119 D-Index: 53 scientists 120–121 D-Index: 60 scientists 122–123 D-Index: 54 scientists 124–125 D-Index: 43 scientists 126–127 D-Index: 38 scientists 128–129 D-Index: 49 scientists 130–131 D-Index: 26 scientists 132–133 D-Index: 18 scientists 134–135 D-Index: 23 scientists 136–137 D-Index: 32 scientists 138–139 D-Index: 32 scientists 140–141 D-Index: 27 scientists 142–143 D-Index: 19 scientists 144–145 D-Index: 22 scientists 146–147 D-Index: 12 scientists 148–149 D-Index: 16 scientists 150–151 D-Index: 14 scientists 152–153 D-Index: 10 scientists 154–155 D-Index: 13 scientists 156–157 D-Index: 10 scientists 158–159 D-Index: 7 scientists 160–161 D-Index: 9 scientists 162–163 D-Index: 13 scientists 164–165 D-Index: 4 scientists 166 D-Index: 4 scientists 167+ D-Index: 98 scientists
40 D-Index 167+

This scientist: 47 D-Index — 6th percentile

6% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 167 D-Index or more.

Overview

Michael Koomey is affiliated with the University of Oslo in Norway. Their research work spans several fields, primarily focusing on biochemistry, genetics, and molecular biology, with significant contributions to immunology and microbiology.

Their scholarly output includes publications across various topics such as bacterial infections and vaccines, glycosylation and glycoproteins research, genomics and phylogenetics, reproductive tract infections, bacterial biofilms and quorum sensing, antibiotic resistance in bacteria, and studies related to Vibrio bacteria.

Frequent publication venues for their work include mBio, UNC Libraries, Glycobiology, PROTEOMICS, and Frontiers in Cellular and Infection Microbiology.

Their recent papers encompass the following:

  • Allelic polymorphisms in a glycosyltransferase gene shape glycan repertoire in the O-linked protein glycosylation system of Neisseria (2020, Glycobiology)
  • Global Regulatory Pathways Converge To Control Expression of Pseudomonas aeruginosa Type IV Pili (2022, mBio)
  • Sculpting the Bacterial O-Glycoproteome: Functional Analyses of Orthologous Oligosaccharyltransferases with Diverse Targeting Specificities (2022, mBio)
  • Combining FAIMS based glycoproteomics and DIA proteomics reveals widespread proteome alterations in response to glycosylation occupancy changes in Neisseria gonorrhoeae (2024, PROTEOMICS)
  • Sweet complexity: O-linked protein glycosylation in pathogenic Neisseria (2024, Frontiers in Cellular and Infection Microbiology)

Throughout their career, Michael Koomey has frequently collaborated with several researchers, including Chris Hadjineophytou, Jan Haug Anonsen, Bente Børud, Hanne C. Winther-Larsen, and Matthew C. Wolfgang.

Their work covers various subfields such as microbiology, molecular biology, molecular medicine, endocrinology, and spectroscopy. This range reflects a multidisciplinary approach to understanding bacterial systems and molecular mechanisms related to infectious diseases and cellular processes.

Best Publications

  • PilT mutations lead to simultaneous defects in competence for natural transformation and twitching motility in piliated Neisseria gonorrhoeae

    Matthew Wolfgang;Peter Lauer;Hae Sun Park;Laurent Brossay

  • Components and dynamics of fiber formation define a ubiquitous biogenesis pathway for bacterial pili

    Matthew Wolfgang;Matthew Wolfgang;Jos P.M. van Putten;Stanley F. Hayes;David Dorward

  • Effects of recA Mutations on Pilus Antigenic Variation and Phase Transitions in Neisseria gonorrhoeae

    Michael Koomey;Emil C. Gotschlich;Ken Robbins;Sven Bergström

  • General secretion pathway (eps) genes required for toxin secretion and outer membrane biogenesis in Vibrio cholerae.

    M Sandkvist;L O Michel;L P Hough;V M Morales

  • Phase variation of gonococcal protein II: regulation of gene expression by slipped-strand mispairing of a repetitive DNA sequence.

    George L. Murphy;Terry D. Connell;Diana S. Barritt;Michael Koomey

  • Characterization of the pilF-pilD pilus-assembly locus of Neisseria gonorrhoeae

    Nancy E. Freitag;H. Steven Seifert;Michael Koomey

  • Competence for natural transformation in Neisseria gonorrhoeae: components of DNA binding and uptake linked to type IV pilus expression.

    Finn Erik Aas;Matthew C Wolfgang;Stephan Frye;Steven Dunham

  • The product of the pilQ gene is essential for the biogenesis of type IV pili in Neisseria gonorrhoeae.

    Sandra L. Drake;Michael Koomey

  • Identification and characterization of pilG, a highly conserved pilus‐assembly gene in pathogenic Neisseria

    Tone Tønjum;Nancy E. Freitag;Ellen Namork;Michael Koomey

  • PilP, a pilus biogenesis lipoprotein in Neisseria gonorrhoeae, affects expression of PilQ as a high‐molecular‐mass multimer

    Sandra L. Drake;Sara A. Sandstedt;Michael Koomey

  • Suppression of an absolute defect in Type IV pilus biogenesis by loss-of-function mutations in pilT, a twitching motility gene in Neisseria gonorrhoeae

    Matthew Wolfgang;Hae Sun Park;Stanley F. Hayes;Jos P.M. Van Putten

  • Neisseria gonorrhoeae PilV, a type IV pilus-associated protein essential to human epithelial cell adherence

    Hanne C. Winther-Larsen;Finn Terje Hegge;Matthew C Wolfgang;Stanley F. Hayes

  • Broad spectrum O-linked protein glycosylation in the human pathogen Neisseria gonorrhoeae

    Åshild Vik;Finn Erik Aas;Jan Haug Anonsen;Shaun Bilsborough

  • Type IV pilus retraction in pathogenic Neisseria is regulated by the PilC proteins.

    Philippe C Morand;Emmanuelle Bille;Sandrine Morelle;Emmanuel Eugène

  • Porin protein of Neisseria gonorrhoeae: cloning and gene structure

    Emil C. Gotschlich;Michael E. Seiff;Milan S. Blake;Michael Koomey

  • Charged tmRNA but not tmRNA‐mediated proteolysis is essential for Neisseria gonorrhoeae viability

    Canhui Huang;Matthew C. Wolfgang;Matthew C. Wolfgang;Jeffrey Withey;Michael Koomey

  • A force-dependent switch reverses type IV pilus retraction

    Berenike Maier;Michael Koomey;Michael P. Sheetz

  • Unique modifications with phosphocholine and phosphoethanolamine define alternate antigenic forms of Neisseria gonorrhoeae type IV pili

    Finn Terje Hegge;Paul G. Hitchen;Finn Erik Aas;Heidi Kristiansen

  • Single amino acid substitutions in the N-terminus of Vibrio cholerae TcpA affect colonization, autoagglutination, and serum resistance

    Su L. Chiang;Ronald K. Taylor;Michael Koomey;John J. Mekalanos

  • The comP locus of Neisseria gonorrhoeae encodes a type IV prepilin that is dispensable for pilus biogenesis but essential for natural transformation.

    Matthew Wolfgang;Jos P. M. Van Putten;Stanley F. Hayes;Michael Koomey;Michael Koomey

Frequent Co-Authors

Matthew C. Wolfgang
Matthew C. Wolfgang University of North Carolina at Chapel Hill
Jos P. M. van Putten
Jos P. M. van Putten Utrecht University
Stanley F. Hayes
Stanley F. Hayes National Institutes of Health
David W. Dorward
David W. Dorward National Institutes of Health
Åke Forsberg
Åke Forsberg Umeå University
Dominique A. Caugant
Dominique A. Caugant Norwegian Institute of Public Health
Emil C. Gotschlich
Emil C. Gotschlich Rockefeller University
Yonatan H. Grad
Yonatan H. Grad Harvard University
Anne Dell
Anne Dell Imperial College London

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