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Stephen P. Mackessy

D-Index & Metrics

Biology and Biochemistry

D-Index
58
Citations
9477
World Ranking
13426
National Ranking
5700

Stephen P. Mackessy 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 Stephen P. Mackessy 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: 187 publications — 44th percentile

44% of scientists in this discipline score the same or lower.

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

Stephen P. Mackessy 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 Stephen P. Mackessy 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: 58 D-Index — 34th percentile

34% of scientists in this discipline score the same or lower.

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

Overview

Stephen P. Mackessy is affiliated with the University of Northern Colorado in the United States. Their research primarily spans the fields of Biochemistry, Genetics and Molecular Biology as well as Environmental Science. Within these broader fields, Mackessy has specialized in Genetics, Global and Planetary Change, Virology, Molecular Biology, and Microbiology.

The scientist's main research topics include Venomous Animal Envenomation and Studies, Amphibian and Reptile Biology, Rabies epidemiology and control, Biochemical and Structural Characterization, Antimicrobial Peptides and Activities, Insect and Pesticide Research, and Genetic diversity and population structure.

Mackessy has contributed to a number of recent publications, including:

  • De novo designed proteins neutralize lethal snake venom toxins (2025) published in Nature
  • Snake Recombination Landscapes Are Concentrated in Functional Regions despite PRDM9 (2020) published in Molecular Biology and Evolution
  • Snakes on a plain: biotic and abiotic factors determine venom compositional variation in a wide-ranging generalist rattlesnake (2023) published in BMC Biology
  • Convergent evolution of toxin resistance in animals (2022) published in Biological Reviews of the Cambridge Philosophical Society
  • The roles of balancing selection and recombination in the evolution of rattlesnake venom (2022) published in Nature Ecology & Evolution

Frequent co-authors of Mackessy include Todd A. Castoe, Cara F. Smith, Blair W. Perry, Drew R. Schield, and Anthony J. Saviola. Collaborations with these researchers have occurred in multiple publications, reflecting ongoing professional partnerships.

Mackessy's work has appeared in various publication venues with notable frequencies, including: Toxicon, bioRxiv (Cold Spring Harbor Laboratory), Genome Biology and Evolution, Nature, and Scientific Reports.

Best Publications

  • The Burmese python genome reveals the molecular basis for extreme adaptation in snakes

    Todd A. Castoe;Todd A. Castoe;A. P. Jason de Koning;A. P. Jason de Koning;Kathryn T. Hall;Daren C. Card

  • Venom ontogeny in the Pacific rattlesnakes Crotalus viridis helleri and C. v. oreganus

    Stephen P. Mackessy

  • An aqueous endpoint assay of snake venom phospholipase A2

    Matthew Holzer;Stephen P. Mackessy

  • Handbook of Venoms and Toxins of Reptiles

    Stephen P. Mackessy

  • Denmotoxin, a three-finger toxin from the colubrid snake Boiga dendrophila (Mangrove Catsnake) with bird-specific activity.

    Joanna Pawlak;Stephen P. Mackessy;Bryan G. Fry;Madhav Bhatia

  • Irditoxin, a novel covalently linked heterodimeric three-finger toxin with high taxon-specific neurotoxicity

    Joanna Pawlak;Stephen P. Mackessy;Nicole M. Sixberry;Enrico A. Stura

  • Venom of the Brown Treesnake, Boiga irregularis: ontogenetic shifts and taxa-specific toxicity.

    Stephen P. Mackessy;Nicole M. Sixberry;William H. Heyborne;Thomas Fritts

  • BIOCHEMISTRY AND PHARMACOLOGY OF COLUBRID SNAKE VENOMS

    Stephen P. Mackessy

  • Functional basis of a molecular adaptation: Prey-specific toxic effects of venom from Sistrurus rattlesnakes

    H. Lisle Gibbs;Stephen P. Mackessy

  • Venom proteomes of closely related Sistrurus rattlesnakes with divergent diets.

    Libia Sanz;H. Lisle Gibbs;Stephen P. Mackessy;Juan J. Calvete

  • Evolutionary trends in venom composition in the western rattlesnakes (Crotalus viridis sensu lato): toxicity vs. tenderizers.

    Stephen P. Mackessy

  • The origins and evolution of chromosomes, dosage compensation, and mechanisms underlying venom regulation in snakes.

    Drew R. Schield;Daren C. Card;Nicole R. Hales;Blair W. Perry

  • The venom gland transcriptome of the Desert Massasauga Rattlesnake (Sistrurus catenatus edwardsii): towards an understanding of venom composition among advanced snakes (Superfamily Colubroidea)

    Susanta Pahari;Stephen P Mackessy;R Manjunatha Kini;R Manjunatha Kini

  • Ontogenetic Variation in Venom Composition and Diet of Crotalus oreganus concolor: A Case of Venom Paedomorphosis?

    Stephen P. Mackessy;Kwame Williams;Kyle G. Ashton

  • Venom Composition in Rattlesnakes: Trends and Biological Significance

    Stephen P. Mackessy

  • The Field of Reptile Toxinology: Snakes, Lizards, and Their Venoms

    Stephen Mackessy

  • Characterization of venom (Duvernoy's secretion) from twelve species of colubrid snakes and partial sequence of four venom proteins.

    Robert E. Hill;Stephen P. Mackessy

  • Biochemical and pharmacological properties of a new thrombin-like serine protease (Russelobin) from the venom of Russell's Viper (Daboia russelii russelii) and assessment of its therapeutic potential

    Ashis K. Mukherjee;Stephen P. Mackessy

  • Identification and characterization of a taxon-specific three-finger toxin from the venom of the Green Vinesnake (Oxybelis fulgidus; family Colubridae).

    William H. Heyborne;Stephen P. Mackessy

  • Snake venom L-amino acid oxidases.

    Fung ShinYee;Tan NgetHong;S. P. Mackessy

Frequent Co-Authors

Todd A. Castoe
Todd A. Castoe The University of Texas at Arlington
Ashis K. Mukherjee
Ashis K. Mukherjee Tezpur University
R. Manjunatha Kini
R. Manjunatha Kini National University of Singapore
David D. Pollock
David D. Pollock University of Colorado Denver
Anne M. Bronikowski
Anne M. Bronikowski Iowa State University
Juan J. Calvete
Juan J. Calvete Spanish National Research Council
Wesley C. Warren
Wesley C. Warren University of Missouri
David A. Ray
David A. Ray Texas Tech University
Cédric Feschotte
Cédric Feschotte Cornell University
Patrick Minx
Patrick Minx Washington University in St. Louis

External Links

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Best Scientists Citing Stephen P. Mackessy

Juan J. Calvete

Juan J. Calvete

Spanish National Research Council

Publications: 114

José María Gutiérrez

José María Gutiérrez

University of Costa Rica

Publications: 93

Bruno Lomonte

Bruno Lomonte

University of Costa Rica

Publications: 78

Ashis K. Mukherjee

Ashis K. Mukherjee

Tezpur University

Publications: 69

Bryan G. Fry

Bryan G. Fry

University of Queensland

Publications: 62

Libia Sanz

Libia Sanz

Spanish National Research Council

Publications: 59

Sergio Marangoni

Sergio Marangoni

State University of Campinas

Publications: 56

R. Manjunatha Kini

R. Manjunatha Kini

National University of Singapore

Publications: 52

Todd A. Castoe

Todd A. Castoe

The University of Texas at Arlington

Publications: 32

Wolfgang Wüster

Wolfgang Wüster

Bangor University

Publications: 30

H. Lisle Gibbs

H. Lisle Gibbs

The Ohio State University

Publications: 27

Yamileth Angulo

Yamileth Angulo

University of Costa Rica

Publications: 24

Alexandra Rucavado

Alexandra Rucavado

University of Costa Rica

Publications: 24

Ana M. Moura-da-Silva

Ana M. Moura-da-Silva

Instituto Butantan

Publications: 16

Alexander S. Mikheyev

Alexander S. Mikheyev

Australian National University

Publications: 16

Jay W. Fox

Jay W. Fox

University of Virginia

Publications: 14

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