Kor H. Kalk

9.4k citations

95 papers · 8.0k indexed · 1 hit paper · h-index 50

Co-authors: Bauke W. Dijkstra Wim G. J. Hol Joost P.H. Drenth H.J. Rozeboom Lubbert Dijkhuizen Titia K. Sixma Anke C. Terwisscha van Scheltinga Bernard Witholt
Topics: Enzyme Structure and Function (39 papers)Enzyme Production and Characterization (20 papers)Protein Kinase Regulation and GTPase Signaling (11 papers)
Cited by: Biotechnology Biochemistry Endocrinology
Journals: Nature Science Proceedings of the National Academy of Sciences
Partner nations: Netherlands United States Germany

In The Last Decade

Kor H. Kalk

94 papers receiving 7.8k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Structure of porcine pancreatic phospholipase A2 at 2·6resolution and comparison with bovine phospholipase A2

1983 210 citations Bauke W. Dijkstra, Roland Renetseder et al. Journal of Molecular Biology profile →

Peers

Countries citing papers authored by Kor H. Kalk

Since Specialization

Citations

This map shows the geographic impact of Kor H. Kalk's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Kor H. Kalk with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Kor H. Kalk more than expected).

Fields of papers citing papers by Kor H. Kalk

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Kor H. Kalk. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Kor H. Kalk. The network helps show where Kor H. Kalk may publish in the future.

Co-authorship network of co-authors of Kor H. Kalk

This figure shows the co-authorship network connecting the top 25 collaborators of Kor H. Kalk. A scholar is included among the top collaborators of Kor H. Kalk based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Kor H. Kalk. Kor H. Kalk is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

#	Work	Indexed citations
1	Structural and Mutational Characterization of the Catalytic A-module of the Mannuronan C-5-epimerase AlgE4 from Azotobacter vinelandii 2008 ·Journal of Biological Chemistry ·H.J. Rozeboom,(unknown),Kor H. Kalk,Helga Ertesvåg,Synnøve Holtan,Finn L. Aachmann,Svein Valla,Bauke W. Dijkstra	44
2	Crystal Structure of the Copper-Containing Quercetin 2,3-Dioxygenase from Aspergillus japonicus 2002 ·Structure ·Fabrizia Fusetti,Klaus Schröter,Roberto A. Steiner,Paula I. van Noort,Tjaard Pijning,H.J. Rozeboom,Kor H. Kalk,Maarten R. Egmond,Bauke W. Dijkstra	183
3	Crystal Structure of Quinohemoprotein Alcohol Dehydrogenase from Comamonas testosteroni 2002 ·Journal of Biological Chemistry ·Arthur Oubrie,H.J. Rozeboom,Kor H. Kalk,Eric G. Huizinga,Bauke W. Dijkstra	70
4	X-ray structure of bovine pancreatic phospholipase A₂at atomic resolution 2001 ·Acta Crystallographica Section D Biological Crystallography ·Roberto A. Steiner,H.J. Rozeboom,André de Vries,Kor H. Kalk,Garib N. Murshudov,Keith S. Wilson,Bauke W. Dijkstra	28
5	Crystallization of quinohaemoprotein alcohol dehydrogenase fromComamonas testosteroni: crystals with unique optical properties 2001 ·Acta Crystallographica Section D Biological Crystallography ·Arthur Oubrie,Eric G. Huizinga,H.J. Rozeboom,Kor H. Kalk,Govardus A. H. de Jong,Johannis A. Duine,Bauke W. Dijkstra	1
6	1.68-Å Crystal Structure of Endopolygalacturonase II from Aspergillus niger and Identification of Active Site Residues by Site-directed Mutagenesis 1999 ·Default journal ·(unknown),Jacques Benen,(unknown),Kor H. Kalk,Sylvie Armand,Jaap Visser,Bauke W. Dijkstra	6
7	Crystal Structures of Intermediates in the Dehalogenation of Haloalkanoates by l-2-Haloacid Dehalogenase 1999 ·Journal of Biological Chemistry ·I.S. Ridder,H.J. Rozeboom,Kor H. Kalk,Bauke W. Dijkstra	69
8	The 1.7 Å crystal structure of the apo form of the soluble quinoprotein glucose dehydrogenase from Acinetobacter calcoaceticus reveals a novel internal conserved sequence repeat 1999 ·Journal of Molecular Biology ·Arthur Oubrie,H.J. Rozeboom,Kor H. Kalk,Johannis A. Duine,Bauke W. Dijkstra	75
9	The structure of an energy-coupling protein from bacteria, IIBcellobiose, reveals similarity to eukaryotic protein tyrosine phosphatases 1997 ·Structure ·(unknown),Tjaard Pijning,Kor H. Kalk,Jonathan Reizer,Milton H. Saier,Marjolein Thunnissen,George T. Robillard,Bauke W. Dijkstra	39
10	Stereochemistry of chitin hydrolysis by a plant chitinase/lysozyme and x-ray structure of a complex with allosamidin evidence for substrate assisted catalysis 1995 ·Biochemistry ·Anke C. Terwisscha van Scheltinga,Sylvie Armand,Kor H. Kalk,Akira Isogai,Bernard Henrissat,Bauke W. Dijkstra	290
11	Structure of partially‐activated E. coli heat‐labile enterotoxin (LT) at 2.6 Å resolution 1994 ·FEBS Letters ·E.A. Merritt,(unknown),Titia K. Sixma,Kor H. Kalk,(unknown),Wim G. J. Hol	30
12	Galactose‐binding site in Escherichia coli heat‐labile enterotoxin (LT) and cholera toxin (CT) 1994 ·Molecular Microbiology ·E.A. Merritt,Titia K. Sixma,Kor H. Kalk,(unknown),Wim G. J. Hol	110
13	Crystal structure of recombinant human triosephosphate isomerase at 2.8 Å resolution. Triosephosphate isomerase‐related human genetic disorders and comparison with the trypanosomal enzyme 1994 ·Protein Science ·Shekhar C. Mande,Wim G. J. Hol,Véronique Mainfroid,Karine Goraj,Joseph Martial,Kor H. Kalk	107
14	Refined Crystal Structure of the Catalytic Domain of Dihydrolipoyl Transacetylase (E2p) from Azotobacter vinelandii at 2·6 Å Resolution 1993 ·Journal of Molecular Biology ·Andrea Mattevi,G. Obmolova,Kor H. Kalk,Adrie H. Westphal,Arie de KOK,Wim G. J. Hol	57
15	Heat‐labile enterotoxin crystal forms with variable A/B₅ orientation Analysis of conformational flexibility 1992 ·FEBS Letters ·Titia K. Sixma,Ángel Aguirre,Anke C. Terwisscha van Scheltinga,Ellen S. Wartna,Kor H. Kalk,Wim G. J. Hol	9
16	X‐Ray studies reveal lanthanide binding sites at the A/B₅ interface of E. coli heat labile enterotoxin 1992 ·FEBS Letters ·Titia K. Sixma,(unknown),Kor H. Kalk,(unknown),Ellen S. Wartna,Wim G. J. Hol	4
17	Crystal structure of haloalkane dehalogenase 1991 ·Default journal ·Sybille Franken,H.J. Rozeboom,Kor H. Kalk,Bauke W. Dijkstra	2
18	The crystal structure of the “open” and the “closed” conformation of the flexible loop of trypanosomal triosephosphate isomerase 1991 ·Proteins Structure Function and Bioinformatics ·Rik K. Wierenga,M.E.M. Noble,Johan P. M. Postma,H. Groendijk,Kor H. Kalk,Wim G. J. Hol,Fred R. Opperdoes	75
19	The adaptability of the active site of trypanosomal triosephosphate isomerase as observed in the crystal structures of three different complexes 1991 ·Proteins Structure Function and Bioinformatics ·M.E.M. Noble,Rik K. Wierenga,Anne‐Marie Lambeir,Fred R. Opperdoes,A.M.W.H. Thunnissen,Kor H. Kalk,H. Groendijk,Wim G. J. Hol	72
20	Crystal structure of bovine pancreatic phospholipase A2 covalently inhibited by p-bromo-phenacyl-bromide 1988 ·Journal of Molecular Biology ·Roland Renetseder,Bauke W. Dijkstra,(unknown),Kor H. Kalk,Joost P.H. Drenth	67

About Kor H. Kalk

Kor H. Kalk is a scholar working on Biotechnology, Biochemistry and Endocrinology, having authored 95 papers that have together received 8.0k indexed citations. Recurring topics across this work include Enzyme Structure and Function (39 papers), Enzyme Production and Characterization (20 papers) and Protein Kinase Regulation and GTPase Signaling (11 papers). The work is most often cited by research in Biotechnology (1.9k citations), Biochemistry (844 citations) and Endocrinology (538 citations). Kor H. Kalk has collaborated with scholars based in Netherlands, United States and Germany. Frequent co-authors include Bauke W. Dijkstra, Wim G. J. Hol, Joost P.H. Drenth, H.J. Rozeboom, Lubbert Dijkhuizen, Titia K. Sixma, Anke C. Terwisscha van Scheltinga, Bernard Witholt, Dirk Penninga and Bart A. van der Veen. Their work appears in journals such as Nature, Science and Proceedings of the National Academy of Sciences.

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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