2026 Gregory S. Kopf: Biology and Biochemistry Researcher – H-Index, Publications & Awards

Discipline name	D-Index	World Ranking	Current World Ranking	National Ranking	Current National Ranking	Publications	Citations
Biology and Biochemistry	75	5335	4924	2527	2271	167	19395

Overview

Gregory S. Kopf is affiliated with the University of Pennsylvania in the United States. Their research primarily focuses on medicine, with a notable concentration on reproductive health and related subfields.

The scientist's main fields of study include:

Medicine

The subfields of study represented in their work are:

Public Health, Environmental and Occupational Health
Pediatrics, Perinatology and Child Health
Reproductive Medicine
General Health Professions
Endocrinology, Diabetes and Metabolism

Kopf's research encompasses several main topics, including:

Reproductive Health and Contraception
Global Maternal and Child Health
Sex and Gender in Healthcare
Adolescent Sexual and Reproductive Health
Sperm and Testicular Function
Hormonal and reproductive studies
Ovarian function and disorders

Frequent publication venues for Gregory S. Kopf include:

Biology of Reproduction
Molecular Aspects of Medicine
Molecular Reproduction and Development

Their recent papers illustrate a focus on contraception and reproductive technologies, published mostly within the past five years. Notable publications include:

The new contraceptive revolution: developing innovative products outside of industry, 2020, Biology of Reproduction
Bridging the gap: advancing multipurpose prevention technologies from the lab into the hands of women, 2020, Biology of Reproduction
The urgent need for innovation in contraception, 2023, Biology of Reproduction
The uniqueness of on-demand male contraception, 2024, Molecular Aspects of Medicine
A tribute: David Lorn Garbers, PhD (1944-2006), 2024, Molecular Reproduction and Development

Kopf has collaborated frequently with several researchers, including:

Kavita Nanda
Rebecca L. Callahan
Neha J. Mehta
Bethany Young Holt
James Kiarie

Best Publications

Capacitation of mouse spermatozoa. I. Correlation between the capacitation state and protein tyrosine phosphorylation.

P. E. Visconti;J. L. Bailey;G. D. Moore;Dieyun Pan

1180
Citations
Capacitation of mouse spermatozoa. II. Protein tyrosine phosphorylation and capacitation are regulated by a cAMP-dependent pathway.

P. E. Visconti;G. D. Moore;J. L. Bailey;P. Leclerc

965
Citations
REGULATION OF PROTEIN PHOSPHORYLATION DURING SPERM CAPACITATION

Pablo E. Visconti;Gregory S. Kopf

611
Citations
Egg-to-embryo transition is driven by differential responses to Ca(2+) oscillation number.

Tom Ducibella;Daniel Huneau;Elizabeth Angelichio;Zhe Xu

559
Citations
The “Soluble” Adenylyl Cyclase in Sperm Mediates Multiple Signaling Events Required for Fertilization

Kenneth C. Hess;Brian H. Jones;Becky Marquez;Yanqiu Chen

477
Citations
Regulation of Protein Tyrosine Phosphorylation during Bovine Sperm Capacitation by a Cyclic Adenosine 3',5'-Monophosphate-Dependent Pathway

Hannah L. Galantino-Homer;Pablo E. Visconti;Gregory S. Kopf

473
Citations
Cholesterol Efflux-mediated Signal Transduction in Mammalian Sperm β-CYCLODEXTRINS INITIATE TRANSMEMBRANE SIGNALING LEADING TO AN INCREASE IN PROTEIN TYROSINE PHOSPHORYLATION AND CAPACITATION

Pablo E. Visconti;Hannah Galantino-Homer;XiaoPing Ning;Grace D. Moore

461
Citations
Regulation of protein tyrosine phosphorylation in human sperm by a calcium/calmodulin-dependent mechanism: identification of A kinase anchor proteins as major substrates for tyrosine phosphorylation

Alfonso Carrera;Jiri Moos;Xiao Ping Ning;George L. Gerton

454
Citations
Molecular basis of mammalian egg activation.

Richard M. Schultz;Gregory S. Kopf

381
Citations
The molecular basis of sperm capacitation.

Pablo E. Visconti;Hannah Galantino‐Homer;Grace D. Moore;Janice L. Bailey

363
Citations
Cholesterol efflux-mediated signal transduction in mammalian sperm: cholesterol release signals an increase in protein tyrosine phosphorylation during mouse sperm capacitation.

Pablo E. Visconti;XiaoPing Ning;Miguel W. Fornés;Juan G. Alvarez

354
Citations
Molecular Events Mediating Sperm Activation

Cynthia R. Ward;Gregory S. Kopf

345
Citations
The Mouse Epididymal Transcriptome: Transcriptional Profiling of Segmental Gene Expression in the Epididymis

Daniel S. Johnston;Scott A. Jelinsky;Hyun J. Bang;Paul DiCandeloro

341
Citations
Regulation of human sperm capacitation by a cholesterol efflux-stimulated signal transduction pathway leading to protein kinase A-mediated up-regulation of protein tyrosine phosphorylation

Joseph E. Osheroff;Pablo E. Visconti;Juan Pablo Valenzuela;Alexander J. Travis

338
Citations
Long-term effects of culture of preimplantation mouse embryos on behavior

David J. Ecker;Paula Stein;Zhe Xu;Carmen J. Williams

319
Citations
The role of cholesterol efflux in regulating the fertilization potential of mammalian spermatozoa

Alexander J. Travis;Gregory S. Kopf

297
Citations
Control of the low voltage-activated calcium channel of mouse sperm by egg ZP3 and by membrane hyperpolarization during capacitation

Christophe Arnoult;Imrana G. Kazam;Pablo E. Visconti;Gregory S. Kopf

293
Citations
Involvement of a Na+/HCO-3 cotransporter in mouse sperm capacitation.

Ignacio A. Demarco;Felipe Espinosa;Jennifer Edwards;Julian Sosnik

271
Citations
Roles of bicarbonate, cAMP, and protein tyrosine phosphorylation on capacitation and the spontaneous acrosome reaction of hamster sperm.

Pablo E. Visconti;J. Stewart-Savage;Aida Blasco;Licia Battaglia

267
Citations
Capacitation and acrosome reactions in human spermatozoa monitored by a chlortetracycline fluorescence assay

Michael A. Lee;Giuliana S. Trucco;Kathleen B. Bechtol;Neil Wummer

264
Citations