Karl Hård

2.3k total citations
32 papers, 1.9k citations indexed

About

Karl Hård is a scholar working on Molecular Biology, Organic Chemistry and Cell Biology. According to data from OpenAlex, Karl Hård has authored 32 papers receiving a total of 1.9k indexed citations (citations by other indexed papers that have themselves been cited), including 28 papers in Molecular Biology, 11 papers in Organic Chemistry and 4 papers in Cell Biology. Recurrent topics in Karl Hård's work include Glycosylation and Glycoproteins Research (19 papers), Carbohydrate Chemistry and Synthesis (10 papers) and Protein Structure and Dynamics (5 papers). Karl Hård is often cited by papers focused on Glycosylation and Glycoproteins Research (19 papers), Carbohydrate Chemistry and Synthesis (10 papers) and Protein Structure and Dynamics (5 papers). Karl Hård collaborates with scholars based in Netherlands, United States and Finland. Karl Hård's co-authors include Johannis P. Kamerling, Johannes F.G. Vliegenthart, Rolf Boelens, Robert Kaptein, Guus van Zadelhoff, Peter Moonen, Astrid Eijkelenboom, Ronald H.A. Plasterk, Johannes F.G. Vliegenthart and Jan B. L. DAMM and has published in prestigious journals such as Journal of Biological Chemistry, Journal of Molecular Biology and Biochemistry.

In The Last Decade

Karl Hård

32 papers receiving 1.8k citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Karl Hård Netherlands	23	1.3k	378	260	255	239	32	1.9k
Nga Y. Nguyen United States	25	1.1k 0.8×	133 0.4×	127 0.5×	232 0.9×	460 1.9×	62	2.5k
Edgar P. Heimer United States	25	1.4k 1.0×	360 1.0×	246 0.9×	289 1.1×	358 1.5×	73	2.6k
Ellen W. Moomaw United States	13	1.1k 0.9×	137 0.4×	76 0.3×	256 1.0×	115 0.5×	19	1.8k
Ossi Renkonen Finland	32	1.9k 1.4×	658 1.7×	49 0.2×	326 1.3×	67 0.3×	94	2.9k
Debra S. Perlow United States	14	1.8k 1.4×	627 1.7×	183 0.7×	259 1.0×	46 0.2×	24	2.5k
Sheena McGowan Australia	28	1.2k 0.9×	246 0.7×	157 0.6×	280 1.1×	39 0.2×	83	2.7k
V. Kostka Czechia	20	1.3k 1.0×	174 0.5×	45 0.2×	141 0.6×	140 0.6×	79	2.0k
Bruce A. Malcolm United States	26	1.5k 1.2×	112 0.3×	66 0.3×	558 2.2×	74 0.3×	52	2.8k
Kristian Schweimer Germany	30	2.0k 1.5×	233 0.6×	56 0.2×	138 0.5×	111 0.5×	86	3.1k
Patrick Van Roey United States	31	1.8k 1.4×	449 1.2×	39 0.1×	472 1.9×	158 0.7×	66	2.4k

Countries citing papers authored by Karl Hård

Since Specialization

Citations

This map shows the geographic impact of Karl Hård'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 Karl Hård with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Karl Hård more than expected).

Fields of papers citing papers by Karl Hård

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Karl Hård. 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 Karl Hård. The network helps show where Karl Hård may publish in the future.

Co-authorship network of co-authors of Karl Hård

This figure shows the co-authorship network connecting the top 25 collaborators of Karl Hård. A scholar is included among the top collaborators of Karl Hård 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 Karl Hård. Karl Hård is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Siegal, Gregg, et al.. (1999). The solution structure of the guanine nucleotide exchange domain of human elongation factor 1β reveals a striking resemblance to that of EF-Ts from Escherichia coli. Structure. 7(2). 217–226. 27 indexed citations

Dijk, Jan, W. Möller, Gregg Siegal, et al.. (1998). 1H, 15N and 13C chemical shift assignment of the guanine nucleotide exchange domain of human Elongation Factor-one beta. Journal of Biomolecular NMR. 12(3). 467–468. 1 indexed citations

Rubinstenn, Gilles, Geerten W. Vuister, Rolf Boelens, et al.. (1998). Solution Structure and Backbone Dynamics of the Photoactive Yellow Protein^,. Biochemistry. 37(37). 12689–12699. 105 indexed citations

Eijkelenboom, Astrid, Arnold Vos, Jurgen F. Doreleijers, et al.. (1997). The solution structure of the amino-terminal HHCC domain of HIV-2 integrase: a three-helix bundle stabilized by zinc. Current Biology. 7(10). 739–746. 101 indexed citations

Beer, Tonny de, Bas R. Leeflang, Karl Hård, et al.. (1996). NMR Studies of the Free α Subunit of Human Chorionic Gonadotropin. European Journal of Biochemistry. 241(1). 229–242. 65 indexed citations

Beer, Tonny de, Johan Haverkamp, Jane Thomas‐Oates, et al.. (1995). Site-Specific and Complete Enzymic Deglycosylation of the Native Human Chorionic Gonadotropin alpha-Subunit. European Journal of Biochemistry. 231(3). 754–760. 15 indexed citations

Bonvin, Alexandre M. J. J., Karl Hård, Adrian Davis, et al.. (1995). Structure refinement of the glucocorticoid receptor-DNA binding domain from NMR data by relaxation matrix calculations. Journal of Molecular Biology. 247(4). 689–700. 24 indexed citations

Beer, Tonny de, Karl Hård, Rolf Boelens, et al.. (1994). Rapid and simple approach for the NMR resonance assignment of the carbohydrate chains of an intact glycoprotein Application of gradient‐enhanced natural abundance ¹H‐¹³C HSQC and HSQC‐TOCSY to the α‐subunit of human chorionic gonadotropin. FEBS Letters. 348(1). 1–6. 62 indexed citations

Kubelka, Viktoria, Friedrich Altmann, Erika Staudacher, et al.. (1993). Primary structures of the N‐linked carbohydrate chains from honeybee venom phospholipase A₂. European Journal of Biochemistry. 213(3). 1193–1204. 190 indexed citations

10.

Hård, Karl, J.M. Van Doorn, Jane Thomas‐Oates, Johannis P. Kamerling, & Dick J. Van der Horst. (1993). Structure of the Asn-linked oligosaccharides of apolipophorin III from the insect Locusta migratoria. Carbohydrate-linked 2-aminoethylphosphonate as a constituent of a glycoprotein. Biochemistry. 32(3). 766–775. 69 indexed citations

11.

Hård, Karl, Guus van Zadelhoff, Peter Moonen, Johannis P. Kamerling, & Johannes F.G. Vliegenthart. (1992). The Asn‐linked carbohydrate chains of human Tamm‐Horsfall glycoprotein of one male. European Journal of Biochemistry. 209(3). 895–915. 267 indexed citations

12.

Staudacher, Erika, Friedrich Altmann, Josef Glössl, et al.. (1991). GDP‐fucose: β‐N‐acetylglucosamine (Fuc to (Fucα1 → 6GlcNAc)‐Asn‐peptide) α1 → 3‐fucosyltransferase activity in honeybee (Apis mellifica) venom glands. European Journal of Biochemistry. 199(3). 745–751. 36 indexed citations

13.

Hård, Karl, et al.. (1991). The potency of amide protons for assignments of NMR spectra of carbohydrate chains of glycoproteins, recorded in ¹H₂ O solutions. FEBS Letters. 287(1-2). 108–112. 9 indexed citations

14.

DAMM, Jan B. L., Karl Hård, Johannis P. Kamerling, Gijs W. K. van Dedem, & Johannes F.G. Vliegenthart. (1990). Structure determination of the major N‐ and O‐linked carbohydrate chains of the β subunit from equine chorionic gondotropin. European Journal of Biochemistry. 189(1). 175–183. 26 indexed citations

15.

DAMM, Jan B. L., Hans Voshol, Karl Hård, Johannis P. Kamerling, & Johannes F.G. Vliegenthart. (1989). Analysis of N‐acetyl‐4‐O‐acetylneuraminic‐acid‐containing. N‐linked carbohydrate chains released by peptide‐N⁴‐(N‐acetyl‐β‐glucosaminyl)asparagine amidase F. European Journal of Biochemistry. 180(1). 101–110. 30 indexed citations

16.

Santer, Ursula V., et al.. (1989). N‐linked oligosaccharide changes with oncogenic transformation require sialylation of multiantennae. European Journal of Biochemistry. 181(1). 249–260. 46 indexed citations

17.

Becker, Burkhard, Karl Hård, Michael Melkonian, Johannis P. Kamerling, & Johannes F.G. Vliegenthart. (1989). Identification of 3‐deoxy‐manno‐2‐octulosonic acid, 3‐deoxy‐5‐O‐methyl‐manno‐2‐octulosonic acid and 3‐deoxy‐lyxo‐2‐heptulosaric acid in the cell wall (theca) of the green alga Tetraselmis striata Butcher (Prasinophyceae). European Journal of Biochemistry. 182(1). 153–160. 35 indexed citations

18.

Hård, Karl, et al.. (1989). Isolation and Structural Characterization of Twenty-One Sialyloligosaccharides from Galactosialidosis Urine. An Intact N,N′-Diacetylchitobiose Unit at the Reducing End of a Diantennary Structure. Biological Chemistry Hoppe-Seyler. 370(1). 191–204. 23 indexed citations

19.

DAMM, Jan B. L., Aldert A. Bergwerff, Karl Hård, J.P. Kamerling, & Johannes F.G. Vliegenthart. (1989). Sialic acid patterns in N‐linked carbohydrate chains. Structural analysis of the N‐acetyl‐/N‐glycolyl‐neuraminic‐acid‐containing N‐linked carbohydrate chains of bovine fibrinogen. Recueil des Travaux Chimiques des Pays-Bas. 108(10). 351–359. 28 indexed citations

20.

Renkonen, Ossi, P.‐L. Mäkinen, Karl Hård, Jari Helin, & Leena Penttilä. (1988). Immobilized wheat germ agglutinin separates small oligosaccharides derived from poly-N-acetyllactosaminoglycans of embryonal carcinoma cells. Biochemistry and Cell Biology. 66(5). 449–453. 17 indexed citations

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.

Explore authors with similar magnitude of impact