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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 68 6503 5897 1977 1641 304 16982

Perry A. Frey publications per year

The chart shows the history of publications by Perry A. Frey between 1961 and 2022, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Perry A. Frey published across 62 years, from 1961 to 2022, averaging 5 papers a year. Output peaked at 21 publications in 2007. 3 of the 309 publications appeared in the last two years.

No. of publications
5 10 15 20
Bar chart. Horizontal axis: year, 1961 to 2022. Vertical axis: number of publications, 0 to 21. Peak 21 publications in 2007. 1961: 1 publication 1962: 0 publications 1963: 0 publications 1964: 1 publication 1965: 1 publication 1966: 3 publications 1967: 1 publication 1968: 0 publications 1969: 0 publications 1970: 1 publication 1971: 3 publications 1972: 1 publication 1973: 0 publications 1974: 3 publications 1975: 2 publications 1976: 1 publication 1977: 4 publications 1978: 4 publications 1979: 5 publications 1980: 2 publications 1981: 2 publications 1982: 12 publications 1983: 5 publications 1984: 7 publications 1985: 8 publications 1986: 8 publications 1987: 6 publications 1988: 5 publications 1989: 9 publications 1990: 9 publications 1991: 10 publications 1992: 7 publications 1993: 7 publications 1994: 7 publications 1995: 11 publications 1996: 13 publications 1997: 8 publications 1998: 13 publications 1999: 8 publications 2000: 16 publications 2001: 19 publications 2002: 10 publications 2003: 9 publications 2004: 10 publications 2005: 4 publications 2006: 9 publications 2007: 21 publications 2008: 2 publications 2009: 2 publications 2010: 4 publications 2011: 3 publications 2012: 1 publication 2013: 2 publications 2014: 2 publications 2015: 1 publication 2016: 1 publication 2017: 1 publication 2018: 1 publication 2019: 0 publications 2020: 0 publications 2021: 2 publications 2022: 1 publication
1961 2022

309 publications in total across all disciplines

View publications per year as a table
Perry A. Frey: publications per year, 1961 to 2022
Year Publications
1961 1
1962 0
1963 0
1964 1
1965 1
1966 3
1967 1
1968 0
1969 0
1970 1
1971 3
1972 1
1973 0
1974 3
1975 2
1976 1
1977 4
1978 4
1979 5
1980 2
1981 2
1982 12
1983 5
1984 7
1985 8
1986 8
1987 6
1988 5
1989 9
1990 9
1991 10
1992 7
1993 7
1994 7
1995 11
1996 13
1997 8
1998 13
1999 8
2000 16
2001 19
2002 10
2003 9
2004 10
2005 4
2006 9
2007 21
2008 2
2009 2
2010 4
2011 3
2012 1
2013 2
2014 2
2015 1
2016 1
2017 1
2018 1
2019 0
2020 0
2021 2
2022 1
Total 309
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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.

No. of scientists
250 500 750 1,000 1,250
Bar chart with 63 bars. Horizontal axis: publications, 61–80 to 1,295+. Vertical axis: number of scientists, 0 to 1,350. Most scientists, 1,350, have 161–180 publications. The last bar groups every scientist with 1,295 publications or more. The highlighted bar, 301–320 publications, is where this scientist sits. 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
61–80 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.

View publications distribution as a table
Number of Chemistry scientists by publication count, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
Publications Scientists This scientist
61–80 66
81–100 302
101–120 623
121–140 918
141–160 1,218
161–180 1,350
181–200 1,344
201–220 1,281
221–240 1,216
241–260 1,100
261–280 979
281–300 939
301–320 764 304
321–340 643
341–360 628
361–380 522
381–400 459
401–420 397
421–440 327
441–460 270
461–480 265
481–500 252
501–520 201
521–540 185
541–560 148
561–580 148
581–600 132
601–620 114
621–640 104
641–660 91
661–680 92
681–700 73
701–720 57
721–740 54
741–760 67
761–780 45
781–800 46
801–820 39
821–840 32
841–860 36
861–880 29
881–900 26
901–920 24
921–940 14
941–960 23
961–980 28
981–1,000 15
1,001–1,020 29
1,021–1,040 12
1,041–1,060 19
1,061–1,080 12
1,081–1,100 6
1,101–1,120 8
1,121–1,140 12
1,141–1,160 5
1,161–1,180 6
1,181–1,200 14
1,201–1,220 7
1,221–1,240 2
1,241–1,260 6
1,261–1,280 4
1,281–1,294 6
1,295+ 100
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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.

No. of scientists
250 500 750 1,000
Bar chart with 61 bars. Horizontal axis: D-Index, 40–41 to 159+. Vertical axis: number of scientists, 0 to 1,051. Most scientists, 1,051, have 56–57 D-Index. The last bar groups every scientist with 159 D-Index or more. The highlighted bar, 68–69 D-Index, is where this scientist sits. 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
40–41 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.

View D-Index distribution as a table
Number of Chemistry scientists by D-index, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
D-Index Scientists This scientist
40–41 289
42–43 612
44–45 808
46–47 776
48–49 835
50–51 861
52–53 872
54–55 933
56–57 1,051
58–59 930
60–61 882
62–63 834
64–65 731
66–67 775
68–69 683 68
70–71 646
72–73 561
74–75 501
76–77 437
78–79 388
80–81 354
82–83 292
84–85 275
86–87 254
88–89 235
90–91 185
92–93 192
94–95 155
96–97 163
98–99 125
100–101 105
102–103 105
104–105 112
106–107 88
108–109 68
110–111 69
112–113 65
114–115 79
116–117 61
118–119 44
120–121 37
122–123 40
124–125 33
126–127 26
128–129 34
130–131 35
132–133 25
134–135 27
136–137 17
138–139 16
140–141 20
142–143 20
144–145 15
146–147 9
148–149 9
150–151 16
152–153 11
154–155 9
156–157 3
158 3
159+ 98
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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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