Results 71 to 80 of about 1,177 (170)
Epigenetic Influences of Mobile Genetic Elements on Ciliate Genome Architecture and Evolution [PDF]
, 2022 Mobile genetic elements (MGEs) are transient genetic material that can move either within a single organism\u27s genome or between individuals or species.
Katz, Laura A. +2 more
core +2 more sources
Structure of Sputnik, a virophage, at 3.5-Å resolution [PDF]
Proceedings of the National Academy of Sciences, 2012 “Sputnik” is a dsDNA virus, referred to as a virophage, that is coassembled with Mimivirus in the host amoeba. We have used cryo-EM to produce an electron density map of the icosahedral Sputnik virus at 3.5-Å resolution, sufficient to verify the identity of most amino acids in the capsid proteins and to establish the identity of the ...
Xinzheng, Zhang +6 more
openaire +2 more sources
Two decades ago, giant viruses were discovered: the fall of an old paradigm. [PDF]
Front MicrobiolSimón D, Ramos N, Lamolle G, Musto H.
europepmc +3 more sources
A systematic approach to cancer: evolution beyond selection
Clinical and Translational Medicine, Volume 6, Issue 1, December 2017., 2017 AbstractCancer is typically scrutinized as a pathological process characterized by chromosomal aberrations and clonal expansion subject to stochastic Darwinian selection within adaptive cellular ecosystems. Cognition based evolution is suggested as an alternative approach to cancer development and progression in which neoplastic cells of differing ...
William B. Miller Jr., John S. Torday
wiley +1 more source
The Common Ancestor of Archaea and Eukarya Was Not an Archaeon
Archaea, Volume 2013, Issue 1, 2013., 2013 It is often assumed that eukarya originated from archaea. This view has been recently supported by phylogenetic analyses in which eukarya are nested within archaea. Here, I argue that these analyses are not reliable, and I critically discuss archaeal ancestor scenarios, as well as fusion scenarios for the origin of eukaryotes.
Patrick Forterre +1 more
wiley +1 more source
Metagenomic Analysis of Virus Diversity and Relative Abundance in a Eutrophic Freshwater Harbour
Viruses, 2019 Aquatic viruses have been extensively studied over the past decade, yet fundamental aspects of freshwater virus communities remain poorly described. Our goal was to characterize virus communities captured in the >0.22 µm size-fraction seasonally ...
Christine N. Palermo +3 more
doaj +1 more source
Virophages go nuclear in the marine alga Bigelowiella natans [PDF]
Proceedings of the National Academy of Sciences, 2015 The virus world in which we live will never cease to amaze us. Historically, viruses were studied primarily from medical and economic perspectives; however, the last decades have shown that viruses play roles far more versatile than we could have imagined.
M. Fischer
semanticscholar +3 more sources
Smaller Fleas: Viruses of Microorganisms
Scientifica, Volume 2012, Issue 1, 2012., 2012 Life forms can be roughly differentiated into those that are microscopic versus those that are not as well as those that are multicellular and those that, instead, are unicellular. Cellular organisms seem generally able to host viruses, and this propensity carries over to those that are both microscopic and less than truly multicellular.
Paul Hyman +5 more
wiley +1 more source
Three Novel Virophage Genomes Discovered from Yellowstone Lake Metagenomes [PDF]
Journal of Virology, 2015 ABSTRACT Virophages are a unique group of circular double-stranded DNA viruses that are considered parasites of giant DNA viruses, which in turn are known to infect eukaryotic hosts. In this study, the genomes of three novel Yellowstone Lake virophages (YSLVs)—YSLV5, YSLV6, and YSLV7—were identified from Yellowstone Lake through metagenomic ...
Jinglie, Zhou +5 more
openaire +2 more sources
, 2020 In searching for life in extraterrestrial space, it is essential to act based on an unequivocal definition of life. In the twentieth century, life was defined as cells that self-replicate, metabolize, and are open for mutations, without which genetic ...
Witzany, Guenther
core