World's Best Scientists 2026 revealed!
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Vern L. Schramm

D-Index & Metrics

Biology and Biochemistry

D-Index
85
Citations
22585
World Ranking
3194
National Ranking
1614

Chemistry

D-Index
85
Citations
22384
World Ranking
2725
National Ranking
939

Vern L. Schramm 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 Vern L. Schramm 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: 516 publications — 89th percentile

89% of scientists in this discipline score the same or lower.

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

Vern L. Schramm 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 Vern L. Schramm 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: 85 D-Index — 85th percentile

85% of scientists in this discipline score the same or lower.

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

Research.com Recognitions

  • 2013 - Fellow, National Academy of Inventors
  • 2007 - Member of the National Academy of Sciences
  • 1999 - Fellow of the American Association for the Advancement of Science (AAAS)

Overview

Vern L. Schramm is affiliated with the Albert Einstein College of Medicine in the United States. Their research primarily focuses on the fields of Biochemistry, Genetics and Molecular Biology, as well as Medicine. Within these domains, they have contributed extensively to subfields including Molecular Biology, Infectious Diseases, Physiology, Epidemiology, and Surgery.

Their scientific work covers a wide range of topics, notably:

  • Biochemical and Molecular Research
  • HIV/AIDS drug development and treatment
  • Epigenetics and DNA Methylation
  • RNA modifications and cancer
  • Clostridium difficile and Clostridium perfringens research
  • Helicobacter pylori-related gastroenterology studies
  • Adenosine and Purinergic Signaling

Schramm has published in several key scientific venues where they have multiple contributions, including:

  • Biochemistry
  • Journal of Biological Chemistry
  • Journal of the American Chemical Society
  • ACS Infectious Diseases
  • ACS Chemical Biology

Their recent notable papers include:

  • "Inhibition of Clostridium difficile TcdA and TcdB toxins with transition state analogues" (2021), published in Nature Communications
  • "Transition-State Analogues of Phenylethanolamine N-Methyltransferase" (2020), published in Journal of the American Chemical Society
  • "Combined inhibition of MTAP and MAT2a mimics synthetic lethality in tumor models via PRMT5 inhibition" (2023), published in Journal of Biological Chemistry
  • "Small Molecule Inhibitors Targeting the Interaction of Ricin Toxin A Subunit with Ribosomes" (2020), published in ACS Infectious Diseases
  • "Clostridioides difficile TcdB Toxin Glucosylates Rho GTPase by an SNi Mechanism and Ion Pair Transition State" (2022), published in ACS Chemical Biology

Frequent collaborators in their research include:

  • Peter C. Tyler
  • Rajesh K. Harijan
  • Ashleigh S. Paparella
  • Yacoba V. T. Minnow
  • Agnidipta Ghosh

Vern L. Schramm has been recognized with several professional distinctions, including:

  • Fellow of the American Association for the Advancement of Science (AAAS), awarded in 1999
  • Member of the National Academy of Sciences, elected in 2007
  • Fellow of the National Academy of Inventors, awarded in 2013

Best Publications

  • The Biochemistry of Sirtuins

    Anthony A. Sauve;Cynthia Wolberger;Vern L. Schramm;Jef D. Boeke

  • Enzymatic Transition States and Transition State Analog Design

    Vern L. Schramm

  • Chemistry of gene silencing: the mechanism of NAD+-dependent deacetylation reactions.

    Anthony A. Sauve;Ivana Celic;Jose Avalos;Haiteng Deng

  • One-Third-the-Sites Transition-State Inhibitors for Purine Nucleoside Phosphorylase†

    Robert W. Miles;Peter C. Tyler;Richard H. Furneaux;Carey K. Bagdassarian

  • Enzymatic transition states and dynamic motion in barrier crossing.

    Steven D Schwartz;Vern L Schramm

  • Sir2 Regulation by Nicotinamide Results from Switching between Base Exchange and Deacetylation Chemistry

    Anthony A. Sauve;Vern L. Schramm

  • Transition state structure of purine nucleoside phosphorylase and principles of atomic motion in enzymatic catalysis

    A Fedorov;W Shi;G Kicska;E Fedorov

  • Purine nucleoside phosphorylase. Catalytic mechanism and transition-state analysis of the arsenolysis reaction.

    Paul C. Kline;Vern L. Schramm

  • Immucillin H, a powerful transition-state analog inhibitor of purine nucleoside phosphorylase, selectively inhibits human T lymphocytes.

    Greg A. Kicska;Li Long;Heidi Hörig;Craig Fairchild

  • Enzymatic transition states, transition-state analogs, dynamics, thermodynamics, and lifetimes.

    Unknown

  • Transition state analysis for human and Plasmodium falciparum purine nucleoside phosphorylases.

    Andrzej Lewandowicz;Vern L Schramm

  • The 2.0 Å structure of human hypoxanthine-guanine phosphoribosyltransferase in complex with a transition-state analog inhibitor

    Wuxian Shi;Caroline M. Li;Peter C. Tyler;Richard H. Furneaux

  • Transition state analogs of 5'-methylthioadenosine nucleosidase disrupt quorum sensing.

    Jemy A. Gutierrez;Tamara Crowder;Agnes Rinaldo-Matthis;Meng Chiao Ho

  • Chemical activation of Sir2-dependent silencing by relief of nicotinamide inhibition.

    Anthony A. Sauve;Robyn D. Moir;Vern L. Schramm;Ian M. Willis

  • Nucleoside hydrolase from Crithidia fasciculata. Metabolic role, purification, specificity, and kinetic mechanism.

    D W Parkin;B A Horenstein;D R Abdulah;B Estupiñán

  • Femtomolar Transition State Analogue Inhibitors of 5′-Methylthioadenosine/S-Adenosylhomocysteine Nucleosidase from Escherichia coli

    Vipender Singh;Gary B. Evans;Dirk H. Lenz;Jennifer M. Mason

  • Enzymatic transition state theory and transition state analogue design.

    Vern L. Schramm

  • Achieving the ultimate physiological goal in transition state analogue inhibitors for purine nucleoside phosphorylase.

    Andrzej Lewandowicz;Peter C. Tyler;Gary B. Evans;Richard H. Furneaux

  • Transition States, Analogues, and Drug Development

    Vern L. Schramm

  • Manganese in metabolism and enzyme function

    Vern L. Schramm;Frederick C. Wedler

  • Enzymatic transition states: thermodynamics, dynamics and analogue design

    Vern L. Schramm

  • Plasmodium falciparum purine nucleoside phosphorylase: crystal structures, immucillin inhibitors, and dual catalytic function.

    Wuxian Shi;Li Min Ting;Gregory A. Kicska;Andrzej Lewandowicz

Frequent Co-Authors

Peter C. Tyler
Peter C. Tyler Victoria University of Wellington
Gary B. Evans
Gary B. Evans Victoria University of Wellington
Richard H. Furneaux
Richard H. Furneaux Victoria University of Wellington
Steven C. Almo
Steven C. Almo Albert Einstein College of Medicine
Anthony A. Sauve
Anthony A. Sauve Cornell University
Kami Kim
Kami Kim University of South Florida
Robert Callender
Robert Callender Albert Einstein College of Medicine
Helen M. Berman
Helen M. Berman Rutgers, The State University of New Jersey
James C. Sacchettini
James C. Sacchettini Texas A&M University
Ching C. Wang
Ching C. Wang University of California, San Francisco

External Links

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