J E Callahan

2.2k total citations · 1 hit paper
14 papers, 1.9k citations indexed

About

J E Callahan is a scholar working on Immunology, Infectious Diseases and Public Health, Environmental and Occupational Health. According to data from OpenAlex, J E Callahan has authored 14 papers receiving a total of 1.9k indexed citations (citations by other indexed papers that have themselves been cited), including 7 papers in Immunology, 4 papers in Infectious Diseases and 4 papers in Public Health, Environmental and Occupational Health. Recurrent topics in J E Callahan's work include Streptococcal Infections and Treatments (4 papers), Immune Response and Inflammation (4 papers) and Immune Cell Function and Interaction (4 papers). J E Callahan is often cited by papers focused on Streptococcal Infections and Treatments (4 papers), Immune Response and Inflammation (4 papers) and Immune Cell Function and Interaction (4 papers). J E Callahan collaborates with scholars based in United States and Italy. J E Callahan's co-authors include Philippa Marrack, Yongwon Choi, John W. Kappler, Brian L. Kotzin, Lissa R. Herron, J W Kappler, Andrea M. Cooper, Ian M. Orme, A. D. Roberts and James E. McCormack and has published in prestigious journals such as Proceedings of the National Academy of Sciences, The Journal of Immunology and PLoS ONE.

In The Last Decade

J E Callahan

12 papers receiving 1.8k 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.

Interaction of Staphylococcus aureus toxin "superantigens" with human T cells.

1989 873 citations Yongwon Choi, Brian L. Kotzin et al. Proceedings of the National Academy of Sciences profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
J E Callahan United States	11	1.3k	485	367	209	185	14	1.9k
Rolien de Jong Netherlands	19	1.6k 1.2×	375 0.8×	411 1.1×	279 1.3×	325 1.8×	24	2.2k
Gregory F. Burton United States	27	1.7k 1.3×	426 0.9×	276 0.8×	433 2.1×	213 1.2×	44	2.7k
Robert T. Woodland United States	19	1.3k 0.9×	196 0.4×	222 0.6×	356 1.7×	185 1.0×	36	1.8k
Diënne G. Elferink Netherlands	15	888 0.7×	492 1.0×	486 1.3×	197 0.9×	111 0.6×	25	1.4k
David Camerini United States	23	939 0.7×	378 0.8×	264 0.7×	546 2.6×	382 2.1×	43	2.1k
Luisa Marcon United States	18	955 0.7×	528 1.1×	264 0.7×	303 1.4×	128 0.7×	24	1.7k
Xavier Paliard United States	22	1.7k 1.2×	172 0.4×	489 1.3×	360 1.7×	270 1.5×	33	2.6k
Sergio Arce United States	19	1.2k 0.9×	206 0.4×	189 0.5×	279 1.3×	247 1.3×	37	1.9k
Willy Bogers Netherlands	22	706 0.5×	457 0.9×	477 1.3×	290 1.4×	106 0.6×	77	1.8k
Edmund J. Gosselin United States	21	1.0k 0.8×	281 0.6×	242 0.7×	683 3.3×	117 0.6×	51	1.9k

Countries citing papers authored by J E Callahan

Since Specialization

Citations

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

Fields of papers citing papers by J E Callahan

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by J E Callahan. 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 J E Callahan. The network helps show where J E Callahan may publish in the future.

Co-authorship network of co-authors of J E Callahan

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

All Works

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14 of 14 papers shown

Galdi, Alice, et al.. (2025). Characterization of electron spin polarization from positive electron affinity GaAs photocathodes. Journal of Applied Physics. 138(10).

Callahan, J E, et al.. (2011). Physiological and molecular characterization of genetic competence in Streptococcus sanguinis. Molecular Oral Microbiology. 26(2). 99–116. 39 indexed citations

Callahan, J E, Cindy L. Munro, & Todd Kitten. (2011). The Streptococcus sanguinis Competence Regulon Is Not Required for Infective Endocarditis Virulence in a Rabbit Model. PLoS ONE. 6(10). e26403–e26403. 13 indexed citations

Callahan, J E. (2011). Functional Characterization of the Streptococcus sanguinis com Regulon. VCU Scholars Compass (Virginia Commonwealth University).

Cooper, Andrea M., J E Callahan, Marc A. Keen, John T. Belisle, & Ian M. Orme. (1997). Expression of memory immunity in the lung following re-exposure to Mycobacterium tuberculosis. Tubercle and Lung Disease. 78(1). 67–73. 74 indexed citations

Cooper, Andrea M., A. D. Roberts, Elizabeth Rhoades, et al.. (1995). The role of interleukin-12 in acquired immunity to Mycobacterium tuberculosis infection.. PubMed. 84(3). 423–32. 262 indexed citations

Cooper, Andrea M., J E Callahan, J P Griffin, A. D. Roberts, & Ian M. Orme. (1995). Old mice are able to control low-dose aerogenic infections with Mycobacterium tuberculosis. Infection and Immunity. 63(9). 3259–3265. 57 indexed citations

McCormack, James E., J E Callahan, John W. Kappler, & Philippa Marrack. (1993). Profound deletion of mature T cells in vivo by chronic exposure to exogenous superantigen. The Journal of Immunology. 150(9). 3785–3792. 208 indexed citations

Marrack, Philippa, et al.. (1993). T Cell Tolerance. CHEST Journal. 103(2). 76S–78S. 1 indexed citations

10.

Callahan, J E, John W. Kappler, & Philippa Marrack. (1993). Unexpected expansions of CD8-bearing cells in old mice.. The Journal of Immunology. 151(12). 6657–6669. 187 indexed citations

11.

Callahan, J E, et al.. (1991). Immunologic effects of plasmapheresis synchronized with pulse cyclophosphamide in systemic lupus erythematosus.. PubMed. 18(2). 270–6. 44 indexed citations

12.

Callahan, J E, Andrew Herman, John W. Kappler, & Philippa Marrack. (1990). Stimulation of B10.BR T cells with superantigenic staphylococcal toxins.. The Journal of Immunology. 144(7). 2473–2479. 123 indexed citations

13.

Kappler, John W., Ann M. Pullen, J E Callahan, et al.. (1989). Consequences of Self and Foreign Superantigen Interaction with Specific V Elements of the Murine TCR . Cold Spring Harbor Symposia on Quantitative Biology. 54(0). 401–407. 16 indexed citations

14.

Choi, Yongwon, Brian L. Kotzin, Lissa R. Herron, et al.. (1989). Interaction of Staphylococcus aureus toxin "superantigens" with human T cells.. Proceedings of the National Academy of Sciences. 86(22). 8941–8945. 873 indexed citations breakdown →

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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