World's Best Scientists 2026 revealed!

D-Index & Metrics

Chemistry

D-Index
63
Citations
14257
World Ranking
8417
National Ranking
178

G.H. de Haas 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 G.H. de Haas 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: 199 publications — 32nd percentile

32% of scientists in this discipline score the same or lower.

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

G.H. de Haas 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 G.H. de Haas 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: 63 D-Index — 54th percentile

54% of scientists in this discipline score the same or lower.

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

Overview

What is he best known for?

The fields of study he is best known for:

  • Enzyme
  • Amino acid
  • Biochemistry

G.H. de Haas mainly focuses on Biochemistry, Phospholipase A2, Chromatography, Phospholipase A and Substrate. His Biochemistry study is mostly concerned with Phospholipase, Peptide sequence, Zymogen, Enzyme and Snake venom. In his study, which falls under the umbrella issue of Enzyme, Rhizopus arrhizus is strongly linked to Fatty acid ester.

His research in Phospholipase A2 intersects with topics in Active site, Porcine pancreas, Stereochemistry, Structure–activity relationship and Binding site. The various areas that G.H. de Haas examines in his Chromatography study include Colipase, Sephadex and Phosphatidic acid. His Phospholipase A study combines topics in areas such as Cardiolipin and Phospholipase B.

His most cited work include:

  • Purification and properties of phospholipase a from porcine pancreas (504 citations)
  • Histidine at the active site of phospholipase A2 (431 citations)
  • Structure and function of phospholiphase A2 (430 citations)

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

His main research concerns Biochemistry, Stereochemistry, Phospholipase A2, Enzyme and Phospholipase A. His Stereochemistry research includes elements of Micelle, Non-competitive inhibition, Active site, Hydrolysis and Substrate. His study looks at the relationship between Phospholipase A2 and topics such as Lecithin, which overlap with Molecule.

His Enzyme research is multidisciplinary, relying on both Residue, Tyrosine and Alanine. He has included themes like Chromatography, Ethanolamines, Enzymatic hydrolysis and Fatty acid in his Phospholipase A study. As part of one scientific family, G.H. de Haas deals mainly with the area of Phospholipase, narrowing it down to issues related to the Binding site, and often Structure–activity relationship.

He most often published in these fields:

  • Biochemistry (44.62%)
  • Stereochemistry (33.08%)
  • Phospholipase A2 (32.31%)

What were the highlights of his more recent work (between 1993-2010)?

  • Stereochemistry (33.08%)
  • Enzyme (31.54%)
  • Organic chemistry (16.92%)

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

His primary areas of study are Stereochemistry, Enzyme, Organic chemistry, Phospholipase A2 and Cutinase. His Stereochemistry study incorporates themes from L serine, Cardiolipin, Non-competitive inhibition and Active site. His work carried out in the field of Enzyme brings together such families of science as Residue and Micelle.

Biochemistry covers G.H. de Haas research in Phospholipase A2. The study incorporates disciplines such as Heteronuclear molecule, Nuclear magnetic resonance spectroscopy and Hydrogen bond in addition to Biochemistry. His Cutinase research integrates issues from Phosphonate and Lipase.

Between 1993 and 2010, his most popular works were:

  • Cutinase from Fusarium solani pisi hydrolyzing triglyceride analogues. Effect of acyl chain length and position in the substrate molecule on activity and enantioselectivity. (81 citations)
  • Hereditary Hemorrhagic Telangiectasia: ENG and ALK-1 Mutations in Dutch Patients (79 citations)
  • Crystal structure of cutinase covalently inhibited by a triglyceride analogue (77 citations)

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

  • Enzyme
  • Amino acid
  • Organic chemistry

G.H. de Haas mainly investigates Stereochemistry, Enzyme, Cutinase, Lipase and Tetrahedral carbonyl addition compound. His work on Enantiomer as part of general Stereochemistry research is frequently linked to Chain length, bridging the gap between disciplines. His study in Phospholipase A2 and Ternary complex falls within the category of Enzyme.

His Cutinase research incorporates themes from Substituent and Alkyl. G.H. de Haas combines subjects such as Phosphonate, Mutant, Glycerol and Acylation with his study of Lipase. His work in Tetrahedral carbonyl addition compound incorporates the disciplines of Active site, Catalysis, X-ray crystallography, Crystal structure and Covalent bond.

Best Publications

  • Purification and properties of phospholipase a from porcine pancreas

    G.H. de Haas;N.M. Postema;W. Nieuwenhuizen;L.L.M van Deenen

  • Structure and function of phospholiphase A2

    H. M. Verheij;A. J. Slotboom;G. H. de Haas

  • Histidine at the active site of phospholipase A2

    J J Volwerk;W A Pieterson;G H de Haas

  • Action of phospholipase A at interfaces.

    Robert Verger;Maria C.E. Mieras;Gerard H. de Haas

  • THE SUBSTRATE SPECIFICITY OF PHOSPHOLIPASE A.

    L.L.M. Van Deenen;G.H. De Haas

  • Studies on phospholipase A and its zymogen from porcine pancreas: III. Action of the enzyme on short-chain lecithins

    G.H. De Haas;P.P.M. Bonsen;W.A. Pieterson;L.L.M. Van Deenen

  • Enzyme reactions in a membrane model 1: A new technique to study enzyme reactions in monolayers

    Robert Verger;Gerard H. de Haas

  • Zymogen-catalyzed hydrolysis of monomeric substrates and the presence of a recognition site for lipid-water interfaces in phospholipase A2.

    W. A. Pieterson;J. C. Vidal;J. J. Volwerk;G. H. De Haas

  • Methylation of Histidine-48 in Pancreatic Phospholipase A2: Role of Histidine and Calcium Ion in the Catalytic Mechanism

    Hubertus M. Verheij;J.J. Volwerk;E.H.J.M. Jansen;W.C. Puyk

  • The interaction of phospholipase A2 with micellar interfaces. The role of the N-terminal region.

    M. C. E. Van Dam-Mieras;A. J. Slotboom;W. A. Pieterson;G. H. De Haas

  • Purification from porcine pancreas of two molecular species with lipase activity

    R. Verger;G.H. De Haas;L. Sarda;P. Desnuelle

  • Studies on phospholipase a and its zymogen from porcine pancreas IV. The influence of chemical modification of the lecithin structure on substrate properties

    P.P.M. Bonsen;G.H. de Haas;W.A. Pieterson;L.L.M. Van Deenen

  • Purification and properties of an anionic zymogen of phospholipase a from porcine pancreas

    G.H. De Haas;N.M. Postema;W. Nieuwenhuizen;L.L.M. Van Deenen

  • Phospholipase A2 and its zymogen from porcine pancreas. V. Interaction of phospholipase A2 and its zymogen with divalent metal ions

    W. A. Pieterson;J. J. Volwerk;G. H. De Haas

  • The synthesis of phosphoglycerides and some biochemical applications.

    L.L.M. Van Deenen;G.H. De Haas

  • Positional specific hydrolysis of phospholipids by pancreatic lipase

    G.H. de Haas;L. Sarda;J. Roger

  • Origin of the latency phase during the action of phospholipase A2 on unmodified phosphatidylcholine vesicles

    Rafael Apitz-Castro;Mahendra K. Jain;Gerard H. De Haas

  • Purification and Substrate Specificity of Staphylococcus Hyicus Lipase

    van Oort Mg;Deveer Am;Dijkman R;Tjeenk Ml

  • Hydrolysis of phosphoglycerides by purified lipase preparations I. Substrate-, positional- and stereo-specificity

    A.J. Slotboom;G.H. de Haas;P.P.M. Bonsen;G.J. Burbach-Westerhuis

  • Kinetic analysis of the hydrolysis of lecithin monolayers by phospholipase A.

    G. Zografi;R. Verger;G.H. de Haas

  • Regulation of phospholipase A2 activity by the lipid-water interface: a monolayer approach.

    F. Pattus;A. J. Slotboom;G. H. De Haas

Frequent Co-Authors

L.L.M. Van Deenen
L.L.M. Van Deenen Utrecht University
Hubertus M. Verheij
Hubertus M. Verheij Utrecht University
Maarten R. Egmond
Maarten R. Egmond Utrecht University
Robert Verger
Robert Verger Centre national de la recherche scientifique, CNRS
Rolf Boelens
Rolf Boelens Utrecht University
Robert Kaptein
Robert Kaptein Utrecht University
Franc Pattus
Franc Pattus École Normale Supérieure
Oscar P. Kuipers
Oscar P. Kuipers University of Groningen
Joachim Seelig
Joachim Seelig University of Basel
Ben Roelofsen
Ben Roelofsen Utrecht University

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