Results 91 to 100 of about 57,554 (268)

Defense Systems and Prophage Detection in Streptococcus mutans Strains

Molecular Oral Microbiology, EarlyView.
ABSTRACT Although the species is extensively studied, limited data are available on antiphage defense systems (APDSs) in Streptococcus mutans. The present study aimed to explore the diversity and the occurrence of APDSs and to search for prophages in the genomes of clinical isolates of S. mutans using bioinformatics tools.
Olivier Claisse, Cas Mosterd, Claire Le Marrec, Johan Samot   +3 more
wiley   +1 more source

Inhibition of HIV-1 replication by primer RNA packaging inhibitors

mBio
An essential step in the life cycle of human immunodeficiency virus type 1 (HIV-1) is the packaging of tRNA3Lys during viral assembly. This step, which requires the assembly of a ternary complex consisting of GagPol, mitochondrial lysyl-tRNA synthetase ...
Marc Mirande, Frédéric Subra, Clémence Richetta, Eric Deprez, Olivier Delelis   +4 more
doaj   +1 more source

Structural Insights on Retroviral DNA Integration: Learning from Foamy Viruses

Viruses, 2019
Foamy viruses (FV) are retroviruses belonging to the Spumaretrovirinae subfamily. They are non-pathogenic viruses endemic in several mammalian hosts like non-human primates, felines, bovines, and equines.
Ga-Eun Lee, Eric Mauro, Vincent Parissi, Cha-Gyun Shin, Paul Lesbats   +4 more
doaj   +1 more source

Recombination directionality factor gp3 binds ϕC31 integrase via the zinc domain, potentially affecting the trajectory of the coiled-coil motif

Nucleic Acids Research, 2017
To establish a prophage state, the genomic DNA of temperate bacteriophages normally becomes integrated into the genome of their host bacterium by integrase-mediated, site-specific DNA recombination.
P. Fogg, Ellen Younger, Booshini Fernando, T. Khaleel, W., Marshall W. Stark, Margaret C. M. Smith   +6 more
semanticscholar   +1 more source

Genomic Sequencing and Analysis of New Variants of Enzootic Nasal Tumour Virus Type 2 Revealed Recombination Events between Different Sublineages

Veterinary Medicine and Science, Volume 12, Issue 2, March 2026.
The strains from sublineages 1.5 and 1.2 may be promoting the emergence of new strains of ENTV‐2 in China. Recombination drives ENTV‐2's rapid evolution . ABSTRACT In recent years, multiple regions in China have experienced an increase in the occurrence of enzootic nasal tumour virus type 2 (ENTV‐2) infections. This research highlights the initial full
Yong Pan, Li Yang, Ting Li, Jinge Xu, Qiufan Xu, Qi Yang   +5 more
wiley   +1 more source

Mitigating genetic instability caused by the excision activity of the phiC31 integrase in Streptomyces

Applied and Environmental Microbiology
Over the past three decades, the integrase (Int) from Streptomyces phage phiC31 has become a valuable genome engineering tool across various species. phiC31 Int was thought to mediate unidirectional site-specific integration (attP × attB to attL and attR)
Yadan Duan, Zhangliang Liu, Xiaofang Huang, Lu Xu, Xianxue Wang, Hao Liu, Zhoujie Xie   +6 more
doaj   +1 more source

Drug resistance emergence in macaques administered cabotegravir long-acting for pre-exposure prophylaxis during acute SHIV infection

Nature Communications, 2019
Long-acting formulation of the integrase inhibitor cabotegravir (CAB LA) is in clinical development for HIV pre-exposure prophylaxis (PrEP). Here, using a SHIV macaque model, the authors show emergence of integrase mutations associated to CAB LA PrEP ...
Jessica Radzio-Basu, Olivia Council, Mian-er Cong, Susan Ruone, Alicia Newton, Xierong Wei, James Mitchell, Shanon Ellis, Christos J. Petropoulos, Wei Huang, William Spreen, Walid Heneine, J. Gerardo García-Lerma   +12 more
doaj   +1 more source

Integrase-mediated spacer acquisition during CRISPR–Cas adaptive immunity

Nature, 2015
Bacteria and archaea insert spacer sequences acquired from foreign DNAs into CRISPR loci to generate immunological memory. The Escherichia coli Cas1–Cas2 complex mediates spacer acquisition in vivo, but the molecular mechanism of this process is unknown.
James K. Nuñez, A. S. Lee, A. Engelman, J. Doudna   +3 more
semanticscholar   +1 more source

Diversity of FAAL enzymes and prediction of their substrate specificity using FAALPred

Protein Science, Volume 35, Issue 2, February 2026.
Abstract FAALs (fatty acyl‐AMP ligases) recruit and incorporate fatty acids during the biosynthesis of secondary metabolites. Their diversity, distribution, and substrate specificity remain poorly understood, which limits functional predictions from sequence data.
Anne Liong, Leandro de Mattos Pereira, Pedro N. Leão   +2 more
wiley   +1 more source

HIV-1 integrase tetramers are the antiviral target of pyridine-based allosteric integrase inhibitors

eLife, 2019
Allosteric HIV-1 integrase (IN) inhibitors (ALLINIs) are a promising new class of antiretroviral agents that disrupt proper viral maturation by inducing hyper-multimerization of IN.
Pratibha C Koneru, Ashwanth C Francis, Nanjie Deng, Stephanie V Rebensburg, Ashley C Hoyte, Jared Lindenberger, Daniel Adu-Ampratwum, Ross C Larue, Michael F Wempe, Alan N Engelman, Dmitry Lyumkis, James R Fuchs, Ronald M Levy, Gregory B Melikyan, Mamuka Kvaratskhelia   +14 more
doaj   +1 more source