John D. Karkas

1.4k total citations
31 papers, 1.2k citations indexed

About

John D. Karkas is a scholar working on Molecular Biology, Genetics and Infectious Diseases. According to data from OpenAlex, John D. Karkas has authored 31 papers receiving a total of 1.2k indexed citations (citations by other indexed papers that have themselves been cited), including 21 papers in Molecular Biology, 7 papers in Genetics and 6 papers in Infectious Diseases. Recurrent topics in John D. Karkas's work include DNA and Nucleic Acid Chemistry (6 papers), HIV/AIDS drug development and treatment (6 papers) and Herpesvirus Infections and Treatments (5 papers). John D. Karkas is often cited by papers focused on DNA and Nucleic Acid Chemistry (6 papers), HIV/AIDS drug development and treatment (6 papers) and Herpesvirus Infections and Treatments (5 papers). John D. Karkas collaborates with scholars based in United States, Sweden and Germany. John D. Karkas's co-authors include Erwin Chargaff, Anjalie Field, Richard L. Tolman, Wallace T. Ashton, John I. Germershausen, Jannis G. Stavrianopoulos, Richard G. Bostedor, Richard Liou, Hans Thysell and Lars-Olof Eriksson and has published in prestigious journals such as Proceedings of the National Academy of Sciences, Journal of Biological Chemistry and Biochemistry.

In The Last Decade

John D. Karkas

30 papers receiving 1.1k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
John D. Karkas United States 18 667 248 206 178 169 31 1.2k
K.R. Marotti United States 17 602 0.9× 146 0.6× 308 1.5× 299 1.7× 105 0.6× 30 1.3k
James A. North United States 23 649 1.0× 181 0.7× 54 0.3× 145 0.8× 193 1.1× 45 1.7k
Patricia A. McKernan United States 19 440 0.7× 218 0.9× 71 0.3× 225 1.3× 349 2.1× 33 1.2k
Shigeo Morimoto Japan 23 638 1.0× 305 1.2× 105 0.5× 173 1.0× 348 2.1× 62 1.5k
Klaus Schréiber Germany 24 678 1.0× 313 1.3× 166 0.8× 53 0.3× 190 1.1× 134 1.9k
David C. Eustice United States 16 861 1.3× 95 0.4× 71 0.3× 137 0.8× 195 1.2× 22 1.3k
Theodore A.W. Koerner United States 24 764 1.1× 89 0.4× 151 0.7× 188 1.1× 408 2.4× 59 1.7k
Alice H. Lin United States 18 782 1.2× 198 0.8× 368 1.8× 305 1.7× 212 1.3× 29 2.0k
Minoru Nishida Japan 21 373 0.6× 113 0.5× 95 0.5× 149 0.8× 130 0.8× 86 1.3k
Jacob J. Clement United States 22 573 0.9× 260 1.0× 79 0.4× 236 1.3× 358 2.1× 56 1.4k

Countries citing papers authored by John D. Karkas

Since Specialization
Citations

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

Fields of papers citing papers by John D. Karkas

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by John D. Karkas. 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 John D. Karkas. The network helps show where John D. Karkas may publish in the future.

Co-authorship network of co-authors of John D. Karkas

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

All Works

20 of 20 papers shown
1.
Bostedor, Richard G., John D. Karkas, Byron H. Arison, et al.. (1997). Farnesol-derived Dicarboxylic Acids in the Urine of Animals Treated with Zaragozic Acid A or with Farnesol. Journal of Biological Chemistry. 272(14). 9197–9203. 56 indexed citations
2.
Árnadóttir, Margrét, Lars-Olof Eriksson, Hans Thysell, & John D. Karkas. (1993). Plasma Concentration Profiles of Simvastatin 3-Hydroxy-3-Methylglutaryl-Coenzyme A Reductase Inhibitory Activity in Kidney Transplant Recipients with and without Ciclosporin. ˜The œNephron journals/Nephron journals. 65(3). 410–413. 115 indexed citations
3.
Beil, Frank Ulrich, Ulrike Beisiegel†, Heiner Greten, et al.. (1990). Lovastatin versus Bezafibrate: Efficacy, Tolerability, and Effect on Urinary Mevalonate. Cardiology. 77(4). 22–32. 9 indexed citations
4.
Katan, Mira, Alfred W. Alberts, Frank Ulrich Beil, et al.. (1990). Subject Index. Cardiology. 77(4). 71–71.
5.
Germershausen, John I., V. M. Hunt, Richard G. Bostedor, et al.. (1989). Tissue selectivity of the cholesterol-lowering agents lovastatin, simvastatin and pravastatin in rats in vivo. Biochemical and Biophysical Research Communications. 158(3). 667–675. 148 indexed citations
6.
Sheares, B T, David T. Molowa, Karen Chan, et al.. (1989). Cloning, analysis, and bacterial expression of human farnesyl pyrophosphate synthetase and its regulation in Hep G2 cells. Biochemistry. 28(20). 8129–8135. 50 indexed citations
7.
Hannah, John, Richard L. Tolman, John D. Karkas, et al.. (1989). Carba‐acyclonucleoside antiherpetic agents. Journal of Heterocyclic Chemistry. 26(5). 1261–1271. 23 indexed citations
8.
Ashton, Wallace T., Laura C. Meurer, Anjalie Field, et al.. (1988). Synthesis and antiherpetic activity of (.+-.)-9-[[(Z)-2-(hydroxymethyl)cyclopropyl]methyl]guanine and related compounds. Journal of Medicinal Chemistry. 31(12). 2304–2315. 77 indexed citations
9.
Karkas, John D., John I. Germershausen, Richard L. Tolman, et al.. (1987). Stereochemical considerations in the enzymatic phosphorylation and antiviral activity of acyclonucleosides. I. Phosphorylation of 2′-nor-2′-deoxyguanosine. Biochimica et Biophysica Acta (BBA) - Protein Structure and Molecular Enzymology. 911(2). 127–135. 27 indexed citations
10.
Field, Anjalie, M E Davies, Helen C. Perry, et al.. (1986). Efficacy of 2′-nor-cyclicGMP in treatment of experimental herpes virus infections. Antiviral Research. 6(6). 329–341. 11 indexed citations
11.
Germershausen, John I., Richard G. Bostedor, Anjalie Field, et al.. (1983). A comparison of the antiviral agents 2′-nor-2′-deoxyguanosine and acyclovir: Uptake and phosphorylation in tissue culture and kinetics of in vitro inhibition of viral and cellular DNA polymerases by their respective triphosphates. Biochemical and Biophysical Research Communications. 116(2). 360–367. 39 indexed citations
12.
Germershausen, John I. & John D. Karkas. (1981). Preparative high speed gel permeation chromatography of proteins on Toyopearl HW55F. Biochemical and Biophysical Research Communications. 99(3). 1020–1027. 17 indexed citations
13.
Karkas, John D.. (1973). Reverse Transcription by Escherichia coli DNA Polymerase I. Proceedings of the National Academy of Sciences. 70(12). 3834–3838. 22 indexed citations
14.
Karkas, John D., Jannis G. Stavrianopoulos, & Erwin Chargaff. (1972). Action of DNA Polymerase I of Escherichia coli with DNA-RNA Hybrids as Templates. Proceedings of the National Academy of Sciences. 69(2). 398–402. 27 indexed citations
15.
Karkas, John D.. (1972). Coupling of Replication to Transcription In Vitro. Proceedings of the National Academy of Sciences. 69(8). 2288–2291. 11 indexed citations
16.
Stavrianopoulos, Jannis G., John D. Karkas, & Erwin Chargaff. (1972). DNA Polymerase of Chicken Embryo: Purification and Properties. Proceedings of the National Academy of Sciences. 69(7). 1781–1785. 42 indexed citations
17.
Stavrianopoulos, Jannis G., John D. Karkas, & Erwin Chargaff. (1971). Nucleic Acid Polymerases of the Developing Chicken Embryo: A DNA Polymerase Preferring a Hybrid Template. Proceedings of the National Academy of Sciences. 68(9). 2207–2211. 55 indexed citations
18.
Karkas, John D., Rivka Rudner, & Erwin Chargaff. (1970). Template Properties of Complementary Fractions of Denatured Microbial Deoxyribonucleic Acids. Proceedings of the National Academy of Sciences. 65(4). 1049–1056. 12 indexed citations
19.
Rudner, Rivka, John D. Karkas, & Erwin Chargaff. (1969). SEPARATION OF MICROBIAL DEOXYRIBONUCLEIC ACIDS INTO COMPLEMENTARY STRANDS. Proceedings of the National Academy of Sciences. 63(1). 152–159. 33 indexed citations
20.
Karkas, John D., Hans Türler, & Erwin Chargaff. (1965). Studies on the specification of accessory biochemical characters, as exemplified by the fatty acid patterns of various strains of Escherichia coli. Biochimica et Biophysica Acta (BBA) - General Subjects. 111(1). 96–109. 16 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.

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