World's Best Scientists 2026 revealed!

D-Index & Metrics

Chemistry

D-Index
68
Citations
16982
World Ranking
6503
National Ranking
1977

Perry A. Frey 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 Perry A. Frey 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: 304 publications — 64th percentile

64% of scientists in this discipline score the same or lower.

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

Perry A. Frey 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 Perry A. Frey 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: 68 D-Index — 64th percentile

64% 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

  • 2003 - Fellow of the American Association for the Advancement of Science (AAAS)
  • 2003 - Fellow of the American Academy of Arts and Sciences
  • 1998 - Member of the National Academy of Sciences

Overview

Perry A. Frey is affiliated with the University of Wisconsin-Madison in the United States. Their research primarily spans the fields of biochemistry, genetics, molecular biology, and medicine, with notable contributions in specific subfields such as molecular biology, rheumatology, and inorganic chemistry.

The scientist's recent publications include:

  • Electron Spin Echo Envelope Modulation Spectroscopy Reveals How Adenosylcobalamin-Dependent Lysine 5,6-Aminomutase Positions the Radical Pair Intermediates and Modulates Their Stabilities for Efficient Catalysis, 2021, ACS Catalysis
  • How are Vitamin B12 and S-Adenosylmethionine Related?, 2021, Internal Medicine Research - Open Journal

Frequent coauthors collaborating with Perry A. Frey comprise:

  • Junru Chen
  • Ting-Xi Ke
  • Shyue-Chu Ke
  • Samuel E. Butcher
  • George H. Reed

The venues where Perry A. Frey has published recently are:

  • ACS Catalysis
  • Internal Medicine Research - Open Journal

Main topics covered in Frey's research work include:

  • Porphyrin Metabolism and Disorders
  • Folate and B Vitamins Research
  • Metal-Catalyzed Oxygenation Mechanisms
  • RNA and protein synthesis mechanisms
  • CRISPR and Genetic Engineering
  • RNA modifications and cancer

The scientist's recognitions include:

  • Fellow of the American Association for the Advancement of Science (AAAS), 2003
  • Fellow of the American Academy of Arts and Sciences, 2003
  • Member of the National Academy of Sciences, 1998

Best Publications

  • A low-barrier hydrogen bond in the catalytic triad of serine proteases

    Perry A. Frey;Sean A. Whitt;John B. Tobin

  • The Low Barrier Hydrogen Bond in Enzymatic Catalysis

    W. Wallace Cleland;Perry A. Frey;John A. Gerlt

  • The Leloir pathway: a mechanistic imperative for three enzymes to change the stereochemical configuration of a single carbon in galactose

    Perry A. Frey

  • The Radical SAM Superfamily

    Perry A. Frey;Adrian D. Hegeman;Frank J. Ruzicka

  • Understanding enzymic catalysis: the importance of short, strong hydrogen bonds.

    John A. Gerlt;Maurice M. Kreevoy;W.W. Cleland;Perry A. Frey

  • Enzymatic reaction mechanisms

    Perry A. Frey;Adrian D. Hegeman

  • On low-barrier hydrogen bonds and enzyme catalysis. Authors' reply

    A. Warshel;A. Papazyan;P. A. Kollman;W. W. Cleland

  • The ubiquity of iron.

    Perry A. Frey;George H. Reed

  • S-Adenosylmethionine: a wolf in sheep's clothing, or a rich man's adenosylcobalamin?

    Perry A. Frey;Olafur Th. Magnusson

  • Radical mechanisms of enzymatic catalysis.

    Perry A. Frey

  • A NEW CONCEPT FOR THE MECHANISM OF ACTION OF CHYMOTRYPSIN : THE ROLE OF THE LOW-BARRIER HYDROGEN BOND

    Constance S. Cassidy;Jing Lin;Perry A. Frey

  • S-adenosylmethionine as an oxidant : the radical SAM superfamily

    Susan C. Wang;Perry A. Frey

  • Bond order and charge localization in nucleoside phosphorothioates.

    Unknown

  • Molecular structure of the NADH/UDP-glucose abortive complex of UDP-galactose 4-epimerase from Escherichia coli: implications for the catalytic mechanism.

    James B. Thoden;Perry A. Frey;Hazel M. Holden

  • The x-ray crystal structure of lysine-2,3-aminomutase from Clostridium subterminale

    Bryan W. Lepore;Frank J. Ruzicka;Perry A. Frey;Dagmar Ringe

  • Mechanistic roles of tyrosine 149 and serine 124 in UDP-galactose 4-epimerase from Escherichia coli.

    Yijeng Liu;James B. Thoden;Jeongmin Kim;Elizabeth Berger

  • The role of S-adenosylmethionine in the lysine 2,3-aminomutase reaction.

    M Moss;P A Frey

  • Studies on the Mechanism of Action of Cobamide Coenzymes CHEMICAL PROPERTIES OF THE ENZYME-COENZYME COMPLEX

    O.W. Wagner;H.A. Lee;P.A. Frey;R.H. Abeles

  • Importance of organic radicals in enzymic cleavage of unactivated carbon-hydrogen bonds

    Perry A. Frey

  • Free radical mechanisms in enzymology.

    Perry A. Frey;and Adrian D. Hegeman;George H. Reed

  • S-adenosylmethionine-dependent reduction of lysine 2,3-aminomutase and observation of the catalytically functional iron-sulfur centers by electron paramagnetic resonance

    Kafryn W. Lieder;Squire Booker;Frank J. Ruzicka;Helmut Beinert

  • The stereochemistry of the conversion of D and L 1,2-propanediols to propionaldehyde.

    Unknown

Frequent Co-Authors

John P. Richard
John P. Richard University at Buffalo, State University of New York
Joseph S. Wall
Joseph S. Wall Brookhaven National Laboratory
Squire J. Booker
Squire J. Booker Pennsylvania State University
Robert H. Abeles
Robert H. Abeles Brandeis University
Ivan Rayment
Ivan Rayment University of Wisconsin–Madison
James B. Thoden
James B. Thoden University of Wisconsin–Madison
Ming-Daw Tsai
Ming-Daw Tsai Academia Sinica
Hazel M. Holden
Hazel M. Holden University of Wisconsin–Madison
Fritz Eckstein
Fritz Eckstein Max Planck Society
Merton F. Utter
Merton F. Utter Case Western Reserve University

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