Results 91 to 100 of about 4,157,307 (334)

Efficient evolution of human antibodies from general protein language models

open access: yesNature Biotechnology, 2023
A general protein language model guides protein evolution with 20 or fewer variants needed for testing. Natural evolution must explore a vast landscape of possible sequences for desirable yet rare mutations, suggesting that learning from natural ...
Brian L. Hie   +8 more
semanticscholar   +1 more source

The newfound relationship between extrachromosomal DNAs and excised signal circles

open access: yesFEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

Influenza’s Newest Trick

open access: yesmBio, 2019
Influenza A viruses are important pathogens for humans and for many birds and mammals. Hemagglutinin and neuraminidase are the major surface proteins of this enveloped RNA virus. Hemagglutinin requires proteolytic cleavage for activation, but because the
Jeffery K. Taubenberger
doaj   +1 more source

Rapid evolution of protein kinase PKR alters sensitivity to viral inhibitors. [PDF]

open access: yes, 2009
Protein kinase PKR (also known as EIF2AK2) is activated during viral infection and phosphorylates the alpha subunit of eukaryotic translation initiation factor 2 (eIF2), leading to inhibition of translation and viral replication. We report fast evolution
Dever, Thomas E   +4 more
core  

Viral evolution [PDF]

open access: yesMobile Genetic Elements, 2012
Explaining the origin of viruses remains an important challenge for evolutionary biology. Previous explanatory frameworks described viruses as founders of cellular life, as parasitic reductive products of ancient cellular organisms or as escapees of modern genomes.
Nasir, Arshan   +2 more
openaire   +2 more sources

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

open access: yesFEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka   +11 more
wiley   +1 more source

The Historical Case for and the Future Study of Antibiotic-Resistant Scrub Typhus

open access: yesTropical Medicine and Infectious Disease, 2017
Scrub typhus is an acute, and sometimes fatal, human febrile illness, typically successfully treated using chloramphenicol or one of the tetracyclines.
Daryl J. Kelly   +2 more
doaj   +1 more source

A Novel SARS-CoV-2 Viral Sequence Bioinformatic Pipeline Has Found Genetic Evidence That the Viral 3′ Untranslated Region (UTR) Is Evolving and Generating Increased Viral Diversity

open access: yesFrontiers in Microbiology, 2021
An unprecedented amount of SARS-CoV-2 sequencing has been performed, however, novel bioinformatic tools to cope with and process these large datasets is needed.
Carlos Farkas   +7 more
doaj   +1 more source

International trades, local spread and viral evolution: the case of porcine circovirus type 2 (PCV2) strains heterogeneity in Italy.

open access: yesInfection, Genetics and Evolution, 2015
Porcine circovirus type 2 is one of the most widespread and economically relevant infections of swine. Four genotypes have been recognized, but currently, only three (PCV2a, PCV2b and PCV2d) are effectively circulating. The widespread livestock trade and
G. Franzo   +5 more
semanticscholar   +1 more source

Viral Recombination: Ecology, Evolution, and Pathogenesis [PDF]

open access: yesViruses, 2018
Recombination between and within virus genomes is being increasingly recognized as a majordriver of virus evolution.
openaire   +3 more sources

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