Results 21 to 30 of about 15,615 (292)

H-NS is the major repressor of Salmonella Typhimurium Pef fimbriae expression

open access: yesVirulence, 2019
Fimbriae play an important role in adhesion and are therefore essential for the interaction of bacteria with the environments they encounter. Most of them are expressed in vivo but not in vitro, thus making difficult the full characterization of these ...
Genaro Alejandro Hurtado-Escobar   +5 more
doaj   +1 more source

Novel Bunyavirus in Domestic and Captive Farmed Animals, Minnesota, USA

open access: yesEmerging Infectious Diseases, 2013
We tested blood samples from domestic and captive farmed animals in Minnesota, USA, to determine exposure to severe fever with thrombocytopenia syndrome virus and Heartland-like virus.
Zheng Xing   +13 more
doaj   +1 more source

Lipids contribute to epigenetic control via chromatin structure and functions

open access: yesScienceOpen Research, 2016
Isolated cases of experimental evidence over the last few decades have shown that, where specifically tested, both prokaryotes and eukaryotes have specific lipid species bound to nucleoproteins of the genome. In vitro, some of these lipid species exhibit
Renad Zhdanov   +6 more
doaj   +1 more source

m6 RNA methylation: an emerging common target in the immune response to cancer and severe acute respiratory syndrome-coronavirus-2 infection

open access: yesExploration of Medicine, 2023
m6A RNA methylation, a predominant type of RNA modification, is involved in regulating mRNA splicing, stability, and translation as well as the interaction between nucleoproteins and noncoding RNAs.
Hiromichi Sato   +10 more
doaj   +1 more source

Quantitative studies of nucleic acid in the cell by microspectrophotometry III. Nucleic acid contents in the cancer cells [PDF]

open access: yes, 1960
1. The DNA contents in mature lymphocytes of the mouse, rat and man are kept almost constant. 2. The variety in the DNA contents in tumor cells is attributed to the rapid DNA synthesis taking place at the interphase, though the degenerating cells and the
Utsumi, Kozo
core   +1 more source

Distinctive Nuclear Features of Dinoflagellates with A Particular Focus on Histone and Histone-Replacement Proteins

open access: yesMicroorganisms, 2018
Dinoflagellates are important eukaryotic microorganisms that play critical roles as producers and grazers, and cause harmful algal blooms. The unusual nuclei of dinoflagellates “dinokaryon„ have led researchers to investigate their enigmatic ...
Sadaf Riaz   +5 more
doaj   +1 more source

مطالعه هیستوپاتولوژیکی ویروس آنفلوانزای تلقیح شده داخل نای (H9N2) در جوجه‌های مرغ [PDF]

open access: yesArchives of Razi Institute, 2004
The type, severity and frequency of gross lesion, histopatholgic change, and tissue tropism of A/Chicken/Iran/259/1998(H9N2) avian influenza virus following intratrachealy (IT) inoculation were studied in chickens.
سیدعلی پوربخش   +3 more
doaj   +1 more source

Viral proteins as a potential driver of histone depletion in dinoflagellates

open access: yesNature Communications, 2018
Dinoflagellates are known to use dinoflagellate-viral-nucleoproteins (DVNPs) in place of histones, yet this evolutionary transition is not well understood. Here, Irwin et al. use yeast expressing DVNP to show that DVNP displaces histones and that histone
Nicholas A. T. Irwin   +7 more
doaj   +1 more source

Structural landscape of the respiratory syncytial virus nucleocapsids

open access: yesNature Communications, 2023
Human Respiratory Syncytial Virus (HRSV) is a prevalent cause of severe respiratory infections in children and the elderly. The helical HRSV nucleocapsid is a template for the viral RNA synthesis and a scaffold for the virion assembly. This cryo-electron
Lorène Gonnin   +6 more
doaj   +1 more source

Cellular Factors Involved in the Hepatitis D Virus Life Cycle

open access: yesViruses, 2023
Hepatitis D virus (HDV) is a defective RNA virus with a negative-strand RNA genome encompassing less than 1700 nucleotides. The HDV genome encodes only for one protein, the hepatitis delta antigen (HDAg), which exists in two forms acting as ...
Keerthihan Thiyagarajah   +2 more
doaj   +1 more source

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