John K. Hardman

763 total citations
36 papers, 639 citations indexed

About

John K. Hardman is a scholar working on Molecular Biology, Materials Chemistry and Oncology. According to data from OpenAlex, John K. Hardman has authored 36 papers receiving a total of 639 indexed citations (citations by other indexed papers that have themselves been cited), including 30 papers in Molecular Biology, 15 papers in Materials Chemistry and 5 papers in Oncology. Recurrent topics in John K. Hardman's work include Biochemical and Molecular Research (18 papers), Enzyme Structure and Function (15 papers) and Polyamine Metabolism and Applications (6 papers). John K. Hardman is often cited by papers focused on Biochemical and Molecular Research (18 papers), Enzyme Structure and Function (15 papers) and Polyamine Metabolism and Applications (6 papers). John K. Hardman collaborates with scholars based in United States and France. John K. Hardman's co-authors include Thressa C. Stadtman, Charles Yanofsky, Woon Ki Lim, John M. Robinson, Gary L. Sloan, Alvin M. Malkinson, Francis J. Běhal, Debra L. Milton, R Myers and Russell Timkovich and has published in prestigious journals such as Science, Proceedings of the National Academy of Sciences and Journal of Biological Chemistry.

In The Last Decade

John K. Hardman

36 papers receiving 567 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 K. Hardman United States 16 485 205 109 67 49 36 639
C.J. Herbert France 18 1.2k 2.4× 59 0.3× 64 0.6× 54 0.8× 72 1.5× 48 1.4k
V Horn United States 14 1.0k 2.1× 154 0.8× 60 0.6× 30 0.4× 41 0.8× 18 1.2k
T. Viswanatha Canada 14 451 0.9× 67 0.3× 83 0.8× 30 0.4× 98 2.0× 77 765
Lisa Wen United States 14 590 1.2× 142 0.7× 59 0.5× 22 0.3× 35 0.7× 50 959
Mark T. McCammon United States 20 1.1k 2.4× 140 0.7× 95 0.9× 30 0.4× 80 1.6× 29 1.4k
Gianpaolo Nitti Italy 17 510 1.1× 153 0.7× 78 0.7× 27 0.4× 86 1.8× 28 930
Terence I. HALE Switzerland 4 536 1.1× 268 1.3× 262 2.4× 10 0.1× 20 0.4× 4 690
H.L. Kornberg United Kingdom 5 520 1.1× 176 0.9× 119 1.1× 8 0.1× 48 1.0× 7 707
R. M. Khomutov Russia 18 769 1.6× 112 0.5× 445 4.1× 30 0.4× 35 0.7× 81 988
C. Peneff France 8 392 0.8× 126 0.6× 55 0.5× 12 0.2× 17 0.3× 9 523

Countries citing papers authored by John K. Hardman

Since Specialization
Citations

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

Fields of papers citing papers by John K. Hardman

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of John K. Hardman

This figure shows the co-authorship network connecting the top 25 collaborators of John K. Hardman. A scholar is included among the top collaborators of John K. Hardman 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 K. Hardman. John K. Hardman 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.
Hardman, John K., et al.. (2001). Solution Conformation of the Met 61 to His 61 Mutant of Pseudomonas stutzeri ZoBell Ferrocytochrome c-551. Biophysical Journal. 80(6). 2928–2934. 2 indexed citations
2.
Hardman, John K., et al.. (2000). Converting ac-type to ab-type Cytochrome:  Met61 to His61 Mutant ofPseudomonasCytochromec-551. Biochemistry. 39(30). 9010–9017. 22 indexed citations
3.
Hardman, John K., et al.. (2000). A complex of iron and nucleic acid catabolites is a signal that triggers differentiation in a freshwater protozoan. Proceedings of the National Academy of Sciences. 97(13). 7325–7330. 13 indexed citations
4.
Hardman, John K., et al.. (1995). Affinities of phosphorylated substrates for the E. coli tryptophan synthase α‐subunit: Roles of Ser‐235 and helix‐8′ dipole. Proteins Structure Function and Bioinformatics. 21(2). 130–139. 11 indexed citations
5.
O’Donnell, Stephen E., et al.. (1995). Tryptophan-containing α-Subunits of the Escherichia coli Tryptophan Synthase. Journal of Biological Chemistry. 270(30). 17712–17715. 5 indexed citations
6.
Hardman, John K., et al.. (1995). Unfolding Properties of Tryptophan-containing α-Subunits of the Escherichia coli Tryptophan Synthase. Journal of Biological Chemistry. 270(47). 28177–28182. 3 indexed citations
7.
Lim, Woon Ki, Christie G. Brouillette, & John K. Hardman. (1992). Thermal stabilities of mutant Escherichia coli tryptophan synthase α subunits. Archives of Biochemistry and Biophysics. 292(1). 34–41. 12 indexed citations
8.
Milton, Debra L., et al.. (1986). In vitro mutagenesis and overexpression of the Escherichia coli trpA gene and the partial characterization of the resultant tryptophan synthase mutant alpha-subunits.. Journal of Biological Chemistry. 261(35). 16604–16615. 32 indexed citations
9.
Hanvey, Jeffery C., John K. Hardman, Robert J. Suhadolnik, & David C. Baker. (1984). Evidence for the conversion of adenosine to 2'-deoxycoformycin by Streptomyces antibioticus. Biochemistry. 23(5). 904–907. 21 indexed citations
10.
Robinson, John M., et al.. (1983). Chemical and ultrastructural studies on the cell wall ofStaphylococcus simulans biovarstaphylolyticus. Current Microbiology. 8(1). 37–43. 9 indexed citations
11.
Robinson, John M., John K. Hardman, & Gary L. Sloan. (1979). Relationship between lysostaphin endopeptidase production and cell wall composition in Staphylococcus staphylolyticus. Journal of Bacteriology. 137(3). 1158–1164. 55 indexed citations
12.
O'Kelley, Joseph C. & John K. Hardman. (1979). FLAVIN COMPOUNDS AS AGENTS FOR THE OXIDATION OF PLASTOCYANIN IN BLUE LIGHT. Photochemistry and Photobiology. 29(4). 829–832. 5 indexed citations
13.
Hardman, John K., et al.. (1971). Reaction of the α Subunit of the Escherichia coli Tryptophan Synthetase with 1,5-Difluoro-2,4-dinitrobenzene. Journal of Biological Chemistry. 246(21). 6489–6496. 9 indexed citations
14.
Hardman, John K., et al.. (1971). Formaldehyde-induced Cross-Linkages in the α Subunit of the Escherichia coli Tryptophan Synthetase. Journal of Biological Chemistry. 246(12). 3863–3869. 13 indexed citations
15.
Hardman, John K., et al.. (1971). Structural and Functional Roles of the Cysteine Residues in the α Subunit of the Escherichia coli Tryptophan Synthetase. Journal of Biological Chemistry. 246(5). 1449–1456. 18 indexed citations
16.
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18.
Hardman, John K. & Charles Yanofsky. (1967). Substrate Binding Properties of Mutant and Wild-Type A Proteins of Escherichia coli Tryptophan Synthetase. Science. 156(3780). 1369–1371. 11 indexed citations
19.
Hardman, John K. & Thressa C. Stadtman. (1963). METABOLISM OF ω-AMINO ACIDS V. Journal of Bacteriology. 85(6). 1326–1333. 15 indexed citations
20.
Hardman, John K. & Thressa C. Stadtman. (1960). METABOLISM OF ω-AMINO ACIDS. Journal of Bacteriology. 79(4). 544–548. 51 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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