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Stephen J. O'Brien
Researcher at Saint Petersburg State University of Information Technologies, Mechanics and Optics
Publications - 1074
Citations - 98793
Stephen J. O'Brien is an academic researcher from Saint Petersburg State University of Information Technologies, Mechanics and Optics. The author has contributed to research in topics: Population & Gene. The author has an hindex of 153, co-authored 1062 publications receiving 93025 citations. Previous affiliations of Stephen J. O'Brien include University College Cork & QIMR Berghofer Medical Research Institute.
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A molecular phylogeny of the hominoid primates as indicated by two-dimensional protein electrophoresis.
TL;DR: A molecular phylogeny for the hominoid primates was constructed by using genetic distances from a survey of 383 radiolabeled fibroblast polypeptides resolved by two-dimensional electrophoresis (2DE), appearing to resolve the human-chimpanzee-gorilla trichotomy in favor of a more recent association of chimpanzees and humans.
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Coadaptation and immunodeficiency virus: lessons from the Felidae.
TL;DR: Tracking lentivirus epidemics in man, monkeys and cats reveals genomic struggles at three levels: quasispecies divergence within an individual; coadaptation of virus and host genomes subsequent to disease outbreaks; and transmission, spread and pathogenesis in related host species.
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Four Independent Mutations in the Feline Fibroblast Growth Factor 5 Gene Determine the Long-Haired Phenotype in Domestic Cats
James Kehler,Victor A. David,Alejandro A. Schäffer,Kristina Bajema,Eduardo Eizirik,David K. Ryugo,Steven S. Hannah,Stephen J. O'Brien,Marilyn Menotti-Raymond +8 more
TL;DR: A whole-genome scan and association analyses demonstrated that FGF5 is the major genetic determinant of hair length in the domestic cat.
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Characterization of Cronobacter recovered from dried milk and related products
TL;DR: This study identified the presence of Cronobacter in dried milk and related products sourced from the Nile-Delta region of Egypt and found resistance was observed in three isolates, highlighting the risks associated with Cronobacteria contamination in foods.