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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 71 5453 4951 137 123 440 22130
Biology and Biochemistry 72 6191 5709 221 203 440 22484

Emil F. Pai publications per year

The chart shows the history of publications by Emil F. Pai between 1976 and 2023, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Emil F. Pai published across 48 years, from 1976 to 2023, averaging 9.8 papers a year. Output peaked at 31 publications in 2019. 1 of the 468 publications appeared in the last two years.

No. of publications
10 20 30
Bar chart. Horizontal axis: year, 1976 to 2023. Vertical axis: number of publications, 0 to 31. Peak 31 publications in 2019. 1976: 1 publication 1977: 3 publications 1978: 2 publications 1979: 0 publications 1980: 2 publications 1981: 3 publications 1982: 3 publications 1983: 2 publications 1984: 3 publications 1985: 1 publication 1986: 2 publications 1987: 1 publication 1988: 2 publications 1989: 8 publications 1990: 6 publications 1991: 11 publications 1992: 4 publications 1993: 4 publications 1994: 7 publications 1995: 4 publications 1996: 4 publications 1997: 10 publications 1998: 8 publications 1999: 1 publication 2000: 17 publications 2001: 5 publications 2002: 15 publications 2003: 15 publications 2004: 22 publications 2005: 16 publications 2006: 14 publications 2007: 23 publications 2008: 29 publications 2009: 17 publications 2010: 22 publications 2011: 27 publications 2012: 18 publications 2013: 28 publications 2014: 25 publications 2015: 18 publications 2016: 6 publications 2017: 10 publications 2018: 12 publications 2019: 31 publications 2020: 2 publications 2021: 3 publications 2022: 0 publications 2023: 1 publication
1976 2023

468 publications in total across all disciplines

View publications per year as a table
Emil F. Pai: publications per year, 1976 to 2023
Year Publications
1976 1
1977 3
1978 2
1979 0
1980 2
1981 3
1982 3
1983 2
1984 3
1985 1
1986 2
1987 1
1988 2
1989 8
1990 6
1991 11
1992 4
1993 4
1994 7
1995 4
1996 4
1997 10
1998 8
1999 1
2000 17
2001 5
2002 15
2003 15
2004 22
2005 16
2006 14
2007 23
2008 29
2009 17
2010 22
2011 27
2012 18
2013 28
2014 25
2015 18
2016 6
2017 10
2018 12
2019 31
2020 2
2021 3
2022 0
2023 1
Total 468
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Emil F. Pai 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 Emil F. Pai 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, 421–440 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: 440 publications — 84th percentile

84% 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
321–340 643
341–360 628
361–380 522
381–400 459
401–420 397
421–440 327 440
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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Emil F. Pai 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 Emil F. Pai 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, 70–71 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: 71 D-Index — 70th percentile

70% 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
70–71 646 71
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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Overview

What is he best known for?

The fields of study he is best known for:

  • Enzyme
  • Gene
  • Amino acid

Stereochemistry, Biochemistry, Protein structure, Crystallography and Enzyme are his primary areas of study. His Stereochemistry study integrates concerns from other disciplines, such as Oxidoreductase, Xanthine dehydrogenase, Substrate and Active site. His work on Amino acid, Binding protein and Nucleotide as part of general Biochemistry study is frequently linked to Histone octamer, therefore connecting diverse disciplines of science.

His Protein structure research includes elements of Lyase, Conformational change, Guanosine triphosphate and Effector. His Crystallography research includes themes of Laser and Binding site. The concepts of his Binding site study are interwoven with issues in Biophysics, Peptide sequence, Beta sheet, Skeletal muscle and Actin.

His most cited work include:

  • Atomic structure of the actin:DNase I complex. (1552 citations)
  • Refined crystal structure of the triphosphate conformation of H-ras p21 at 1.35 Å resolution : implications for the mechanism of GTP hydrolysis (910 citations)
  • STRUCTURE OF THE GUANINE-NUCLEOTIDE-BINDING DOMAIN OF THE HA-RAS ONCOGENE PRODUCT P21 IN THE TRIPHOSPHATE CONFORMATION (740 citations)

What are the main themes of his work throughout his whole career to date?

His primary areas of study are Biochemistry, Stereochemistry, Crystallography, Enzyme and Crystal structure. His work on Protein structure, Xanthine dehydrogenase, Nucleotide and Mutant as part of general Biochemistry research is frequently linked to Glutathione reductase, thereby connecting diverse disciplines of science. His Xanthine dehydrogenase study incorporates themes from Oxidoreductase, Bovine milk, Cofactor and Xanthine.

The study incorporates disciplines such as Active site, Orotidine 5'-phosphate decarboxylase, Substrate, Dehydrogenase and Binding site in addition to Stereochemistry. His research integrates issues of Peptide sequence and Methanobacterium in his study of Binding site. The Crystallography study combines topics in areas such as X-ray crystallography, Crystallization, Synchrotron and GTP'.

He most often published in these fields:

  • Biochemistry (49.54%)
  • Stereochemistry (38.15%)
  • Crystallography (24.31%)

What were the highlights of his more recent work (between 2013-2021)?

  • Biochemistry (49.54%)
  • Enzyme (22.77%)
  • Stereochemistry (38.15%)

In recent papers he was focusing on the following fields of study:

His primary scientific interests are in Biochemistry, Enzyme, Stereochemistry, Crystallography and Synchrotron. His study in Active site, Protein structure, Subfamily, Gene and NAD+ kinase is carried out as part of his Biochemistry studies. His research in Active site intersects with topics in Binding site and Trypanosoma.

His Enzyme research is multidisciplinary, incorporating perspectives in Cancer cell and Docking. His biological study spans a wide range of topics, including Xanthine Oxidoreductase, Trypanosoma brucei, Crystal structure, Dithiothreitol and Protomer. His Protein crystallization study in the realm of Crystallography connects with subjects such as Chip.

Between 2013 and 2021, his most popular works were:

  • The role of dimer asymmetry and protomer dynamics in enzyme catalysis. (92 citations)
  • Fixed target matrix for femtosecond time-resolved and in situ serial micro-crystallography. (82 citations)
  • Fixed target matrix for femtosecond time-resolved and in situ serial micro-crystallography. (82 citations)

In his most recent research, the most cited papers focused on:

  • Enzyme
  • Gene
  • Amino acid

Emil F. Pai mostly deals with Biophysics, Synchrotron, Biochemistry, Crystallography and Stereochemistry. His Biophysics research integrates issues from Hydrolase, Epitope, Paratope, Immunogen and Allosteric regulation. His Biochemistry and Enzyme, Dehydrogenase, Binding site, Protein structure and Small molecule investigations all form part of his Biochemistry research activities.

Emil F. Pai works in the field of Enzyme, focusing on Active site in particular. His study in Crystallography is interdisciplinary in nature, drawing from both Laser and Femtosecond. His Stereochemistry research is multidisciplinary, incorporating elements of Oxidoreductase, Xanthine oxidase, Xanthine dehydrogenase, Dithiothreitol and Oxidase test.

Best Publications

  • Atomic structure of the actin:DNase I complex.

    Wolfgang Kabsch;Hans Georg Mannherz;Dietrich Suck;Emil F. Pai

  • Refined crystal structure of the triphosphate conformation of H-ras p21 at 1.35 Å resolution : implications for the mechanism of GTP hydrolysis

    Emil F. Pai;Ute Krengel;Gregory A. Petsko;Roger S. Goody

  • STRUCTURE OF THE GUANINE-NUCLEOTIDE-BINDING DOMAIN OF THE HA-RAS ONCOGENE PRODUCT P21 IN THE TRIPHOSPHATE CONFORMATION

    Emil F. Pai;Wolfgang Kabsch;Ute Krengel;Kenneth C. Holmes

  • Crystal structures of bovine milk xanthine dehydrogenase and xanthine oxidase: Structure-based mechanism of conversion

    C. Enroth;B.T. Eger;K. Okamoto;T. Nishino

  • Crystal structure of metarhodopsin II.

    Hui Woog Choe;Yong Ju Kim;Jung Hee Park;Takefumi Morizumi;Takefumi Morizumi

  • Time−resolved X−ray crystallographic study of the conformational change in Ha−ras p21 protein on GTP hydrolysis

    Ilme Schlichting;Steven C. Almo;Gert Rapp;Keith Wilson

  • An Extremely Potent Inhibitor of Xanthine Oxidoreductase CRYSTAL STRUCTURE OF THE ENZYME-INHIBITOR COMPLEX AND MECHANISM OF INHIBITION

    Ken Okamoto;Bryan T. Eger;Tomoko Nishino;Shiro Kondo

  • THREE-DIMENSIONAL STRUCTURES OF H-RAS P21 MUTANTS - MOLECULAR BASIS FOR THEIR INABILITY TO FUNCTION AS SIGNAL SWITCH MOLECULES

    Ute Krengel;Ilme Schlichting;Anna Scherer;Renate Schumann

  • Mammalian xanthine oxidoreductase - mechanism of transition from xanthine dehydrogenase to xanthine oxidase.

    Tomoko Nishino;Ken Okamoto;Bryan T. Eger;Emil F. Pai

  • The catalytic mechanism of glutathione reductase as derived from x-ray diffraction analyses of reaction intermediates.

    Emil F. Pai;Georg E. Schulz

  • The structure of Ras protein: a model for a universal molecular switch.

    Alfred Wittinghofer;Emil F. Pai

  • Structural proteomics of an archaeon.

    Dinesh Christendat;Adelinda Yee;Akil Dharamsi;Yuval Kluger

  • Substrate positions and induced-fit in crystalline adenylate kinase.

    E.F. Pai;W. Sachsenheimer;R.H. Schirmer;G.E. Schulz

  • The structure of the flavoenzyme glutathione reductase.

    G. E. Schulz;R. H. Schirmer;W. Sachsenheimer;E. F. Pai

  • The active site architecture of Pisum sativum β-carbonic anhydrase is a mirror image of that of α-carbonic anhydrases

    Matthew S. Kimber;Emil F. Pai

  • Three-dimensional structure of glutathione reductase at 2 A resolution.

    R. Thieme;E.F. Pai;R.H. Schirmer;G.E. Schulz

  • The crystal structure of xanthine oxidoreductase during catalysis: Implications for reaction mechanism and enzyme inhibition

    Ken Okamoto;Koji Matsumoto;Russ Hille;Bryan T. Eger

  • Mitochondrial ClpP-Mediated Proteolysis Induces Selective Cancer Cell Lethality

    Jo Ishizawa;Sarah F. Zarabi;Sarah F. Zarabi;R. Eric Davis;Ondrej Halgas;Ondrej Halgas

  • Electrostatic stress in catalysis: structure and mechanism of the enzyme orotidine monophosphate decarboxylase.

    Ning Wu;Yirong Mo;Jiali Gao;Emil F. Pai

  • The structure of OmpF porin in a tetragonal crystal form

    SW Cowan;RM Garavito;JN Jansonius;JA Jenkins

Frequent Co-Authors

Takeshi Nishino
Takeshi Nishino Nippon Medical School
Georg E. Schulz
Georg E. Schulz University of Freiburg
Alfred Wittinghofer
Alfred Wittinghofer Max Planck Society
Wolfgang Kabsch
Wolfgang Kabsch Max Planck Society
Jean-Philippe Julien
Jean-Philippe Julien University of Toronto
Roger S. Goody
Roger S. Goody Max Planck Society
Christopher T. Walsh
Christopher T. Walsh Stanford University
Aled M. Edwards
Aled M. Edwards Structural Genomics Consortium
R. J. Dwayne Miller
R. J. Dwayne Miller University of Toronto

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