Stephen J. O’Brien

74.8k citations

656 papers · 53.8k · 20 hit papers · h-index 111

Impact in

Virology top 0.01%
- HIV Research and Treatment
Genetics top 0.01%
- Genetic diversity and population structure
- Genetic and phenotypic traits in livestock

Papers in

Genetics 255
- Genetic diversity and population structure 117
- Genetic and phenotypic traits in livestock 60
Molecular Biology 177
- Genomics and Phylogenetic Studies 53

Co-authors: Warren E. Johnson (77 shared papers)Mary Carrington (42 shared papers)William J. Murphy (31 shared papers)Eduardo Eizirik (23 shared papers)James J. Goedert (41 shared papers)David Vlahov (28 shared papers)Marilyn Menotti‐Raymond (42 shared papers)Cheryl A. Winkler (42 shared papers)
Journals: Science (26 papers)Proceedings of the National Academy of Sciences (26 papers)Journal of Virology (25 papers)Journal of Heredity (25 papers)Genomics (19 papers)
Partner nations: United States United Kingdom Russia

In The Last Decade

Stephen J. O’Brien

647 papers receiving 50.4k citations

Stephen J. O’Brien's Hit Papers

15 papers align trajectories log scale

Genetic Restoration of the Florida Panther 2010 · 473 citations

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if any of the following hold:

it has ≥500 total citations;
it reaches ≥1.5× the top-1% citation threshold for papers in the same subfield and year (the threshold is the minimum needed to enter the top 1%, not the average within it);
it reaches the top citation threshold in at least one of its specific research topics.

2010 Science
2006 Science
2005 Science
2004 Science
2003 Proceedings of the National Academy of Sciences
2003 Annual Review of Medicine
2002 Nature Genetics
2001 Science
2001 Nature
1999 Science
1997 Science
1996 Nature
1996 Nature Medicine
1996 Blood
1996 Science
1988 Trends in Ecology & Evolution
1987 Science
1986 Science
1986 Cell
1985 Science

Peers

Countries citing papers authored by Stephen J. O’Brien

Since Specialization

Citations

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

Fields of papers citing papers by Stephen J. O’Brien

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Stephen J. O’Brien. 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 Stephen J. O’Brien. The network helps show where Stephen J. O’Brien may publish in the future.

Co-authors

The 25 scholars most cited alongside Stephen J. O’Brien, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Stephen J. O’Brien Line = papers co-authored together Stephen J. O’Brien links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

Showing the 20 most-cited of 656 papers — load more, or switch the sort, to bring in the rest.

#	Work
1	Genetic Restriction of HIV-1 Infection and Progression to AIDS by a Deletion Allele of the CKR5 Structural Gene Science ·Michael Dean, Mary Carrington, Cheryl A. Winkler, Gavin Huttley, Michael W. Smith, Rando Allikmets, James J. Goedert, Susan Buchbinder, Eric Vittinghoff, Edward D. Gomperts, Sharyne Donfield, David Vlahov, Richard A. Kaslow, Alfred J. Saah, Charles R. Rinaldo, Roger Detels, Stephen J. O’Brien Hit paper breakdown →	1996	2035
2	National Cancer Institute-sponsored Working Group guidelines for chronic lymphocytic leukemia: revised guidelines for diagnosis and treatment Blood ·Cheson Bd, J M Bennett, Michael R. Grever, Neil E. Kay, MJ Keating, Stephen J. O’Brien, KR Rai Hit paper breakdown →	1996	1497
3	Molecular phylogenetics and the origins of placental mammals Nature ·William J. Murphy, Eduardo Eizirik, Warren E. Johnson, Ya Zhang, Oliver A. Ryder, Stephen J. O’Brien Hit paper breakdown →	2001	1192
4	Resolution of the Early Placental Mammal Radiation Using Bayesian Phylogenetics Science ·William J. Murphy, Eduardo Eizirik, Stephen J. O’Brien, Ole Madsen, Mark Scally, Christophe J. Douady, Emma C. Teeling, Oliver A. Ryder, Michael J. Stanhope, Wilfried W. de Jong, Mark S. Springer Hit paper breakdown →	2001	1105
5	HLAand HIV-1: Heterozygote Advantage andB35-Cw04Disadvantage Science ·Mary Carrington, George W. Nelson, Maureen P. Martin, Teri L. Kissner, David Vlahov, James J. Goedert, Richard A. Kaslow, Susan Buchbinder, Keith Hoots, Stephen J. O’Brien Hit paper breakdown →	1999	986
6	Epistatic interaction between KIR3DS1 and HLA-B delays the progression to AIDS Nature Genetics ·Maureen P. Martin, Xiaojiang Gao, Jeong-Hee Lee, George W. Nelson, Roger Detels, James J. Goedert, Susan Buchbinder, Keith Hoots, David Vlahov, John Trowsdale, Michael J. Wilson, Stephen J. O’Brien, Mary Carrington Hit paper breakdown →	2002	948
7	HLA and NK Cell Inhibitory Receptor Genes in Resolving Hepatitis C Virus Infection Science ·Salim I. Khakoo, Chloe L. Thio, Maureen P. Martin, Collin Brooks, Xiaojiang Gao, Jacquie Astemborski, Jie Cheng, James J. Goedert, David Vlahov, Margaret W. Hilgartner, S.T. Cox, Ann-Margeret Little, Graeme Alexander, Matthew Cramp, Stephen J. O’Brien, William Rosenberg, David L. Thomas, Mary Carrington Hit paper breakdown →	2004	947
8	A Molecular Phylogeny for Bats Illuminates Biogeography and the Fossil Record Science ·Emma C. Teeling, Mark S. Springer, Ole Madsen, Paul J. J. Bates, Stephen J. O’Brien, William J. Murphy Hit paper breakdown →	2005	920
9	Influence of combinations of human major histocompatibility complex genes on the course of HIV–1 infection Nature Medicine ·Richard A. Kaslow, Mary Carrington, R. Apple, L. Park, Álvaro Muñoz, Alfred J. Saah, James J. Goedert, Cheryl A. Winkler, Stephen J. O’Brien, Charles R. Rinaldo, Roger Detels, William A. Blattner, John J. Phair, (unknown), Douglas L. Mann Hit paper breakdown →	1996	797
10	Contrasting Genetic Influence of CCR2 and CCR5 Variants on HIV-1 Infection and Disease Progression Science ·Michael W. Smith, Michael Dean, Mary Carrington, Cheryl A. Winkler, Gavin Huttley, Deborah A. Lomb, James J. Goedert, Thomas R. OʼBrien, Lisa P. Jacobson, Richard A. Kaslow, Susan Buchbinder, Eric Vittinghoff, David Vlahov, Keith Hoots, Margaret W. Hilgartner, Multicenter Hemophilia Study Multicenter AIDS Cohort Study, Stephen J. O’Brien Hit paper breakdown →	1997	757
11	Genetic Basis for Species Vulnerability in the Cheetah Science ·Stephen J. O’Brien, Melody E. Roelke, Laurie Marker, Andrea K. Newman, Cheryl A. Winkler, D.G.A. Meltzer, L. P. Colly, James F. Evermann, Μ. Bush, D. E. Wildt Hit paper breakdown →	1985	725
12	Placental mammal diversification and the Cretaceous–Tertiary boundary Proceedings of the National Academy of Sciences ·Mark S. Springer, William J. Murphy, Eduardo Eizirik, Stephen J. O’Brien Hit paper breakdown →	2003	695
13	A canine distemper virus epidemic in Serengeti lions (Panthera leo) Nature ·Melody Roelke‐Parker, Linda Munson, Craig Packer, Richard Kock, Sarah Cleaveland, Margaret A. Carpenter, Stephen J. O’Brien, A. Pospischil, Regina Hofmann‐Lehmann, Hans Lutz, George L. M. Mwamengele, M.N. Mgasa, G. A. Machange, Brian A. Summers, M. J. G. Appel Hit paper breakdown →	1996	645
14	Human Endothelial Cell Growth Factor: Cloning, Nucleotide Sequence, and Chromosome Localization Science ·Michael Jaye, R. Howk, Wilson H. Burgess, George A. Ricca, Ing-Ming Chiu, Mark W. Ravera, Stephen J. O’Brien, William S. Modi, Thomas Maciag, William N. Drohan Hit paper breakdown →	1986	633
15	The Influence ofHLAGenotype on AIDS Annual Review of Medicine ·Mary Carrington, Stephen J. O’Brien Hit paper breakdown →	2003	574
16	The Late Miocene Radiation of Modern Felidae: A Genetic Assessment Science ·Warren E. Johnson, Eduardo Eizirik, Jill Pecon‐Slattery, William J. Murphy, Agostinho Antunes, Emma C. Teeling, Stephen J. O’Brien Hit paper breakdown →	2006	572
17	Identification of an Amplified, Highly Expressed Gene in a Human Glioma Science ·Kenneth W. Kinzler, Sandra H. Bigner, Darell D. Bigner, Jeffrey M. Trent, M L Law, Stephen J. O’Brien, Albert J. Wong, Bert Vogelstein Hit paper breakdown →	1987	565
18	Mechanism of met oncogene activation Cell ·Morag Park, Michael Dean, Colin S. Cooper, Martin C. Schmidt, Stephen J. O’Brien, Donald G. Blair, George F. Vande Woude Hit paper breakdown →	1986	487
19	Genetic Restoration of the Florida Panther Science ·Warren E. Johnson, David P. Onorato, Melody E. Roelke, E. Darrell Land, Mark W. Cunningham, Robert C. Belden, Roy McBride, Deborah Jansen, Mark Lotz, David B. Shindle, JoGayle Howard, David E. Wildt, Linda M. Penfold, Jeffrey A. Hostetler, Madan K. Oli, Stephen J. O’Brien Hit paper breakdown →	2010	473
20	Interactive influence of infectious disease and genetic diversity in natural populations Trends in Ecology & Evolution ·Stephen J. O’Brien, James F. Evermann Hit paper breakdown →	1988	436

About Stephen J. O’Brien

Stephen J. O’Brien is a scholar working on Genetics, Molecular Biology, Immunology, Virology and Ecology, having authored 656 papers that have together received 53.8k indexed citations. Recurring topics across this work include Genetic diversity and population structure (117 papers), HIV Research and Treatment (103 papers), Wildlife Ecology and Conservation (72 papers), Genetic and phenotypic traits in livestock (60 papers), Immune Cell Function and Interaction (60 papers), Genomics and Phylogenetic Studies (53 papers), Chromosomal and Genetic Variations (46 papers) and T-cell and B-cell Immunology (46 papers). The work is most often cited by research in Virology (9.2k citations), Genetics (16.9k citations), Immunology (9.9k citations), Paleontology (3.4k citations) and Ecology (9.5k citations). Stephen J. O’Brien has collaborated with scholars based in United States, United Kingdom and Russia. Frequent co-authors include Warren E. Johnson, Mary Carrington, William J. Murphy, Eduardo Eizirik, James J. Goedert, David Vlahov, Marilyn Menotti‐Raymond, Cheryl A. Winkler, Mark S. Springer and George W. Nelson. Their work appears in journals such as Science, Proceedings of the National Academy of Sciences, Journal of Virology, Journal of Heredity and Genomics.

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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Stephen J. O’Brien

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In The Last Decade

Stephen J. O’Brien

Stephen J. O’Brien's Hit Papers

Peers

Countries citing papers authored by Stephen J. O’Brien

Fields of papers citing papers by Stephen J. O’Brien

All Works

About Stephen J. O’Brien

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