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The T4 virus initiates an Escherichia coli infection by binding OmpC porin proteins and lipopolysaccharide (LPS) on the surface of E. coli cells with its long tail fibers (LTF). [16] [17] A recognition signal is sent through the LTFs to the baseplate. This unravels the short tail fibers (STF) that bind irreversibly to the E. coli cell surface.
Enterobacteria phage T6 is a bacteriophage strain that infects Escherichia coli bacteria. It was one bacteriophage that was used as a model system in the 1950s in exploring the methods viruses replicate, along with the other T-even bacteriophages (which build up virus species Escherichia virus T4, a member of genus T4virus according to ICTV nomenclature): [1] Enterobacteria phage T2 ...
The virus attaches to the host cell using its terminal fibers, and uses viral exolysin to degrade the cell wall enough to eject the viral DNA into the host cytoplasm via contraction of its tail sheath. DNA-templated transcription is the method of transcription. The virus exits the host cell by lysis, and holin/endolysin/spanin proteins. Once ...
Zika virus is an arthropod-borne virus transmitted by mosquitos, and infection during pregnancy can lead to severe congenital abnormalities in a newborn. Congenital infection can lead to fetal growth restriction and CNS abnormalities, including microcephaly , ventriculomegaly and intracranial calcifications.
The virus's virion have icosahedral (T=9) [1] heads ~70 nm and short tails (10 nm), and contain short fibers originating from the junction between the head and tail. All the phages of this genus are strictly virulent and contain a linear dsDNA genome (with terminal repeats) in the range of 70-75kb.
In those who are not improving with appropriate treatment, other complications such as an abscess should be considered. [1] In 2015, about 11.8 million maternal infections occurred. [3] In the developed world about 1% to 2% develop uterine infections following vaginal delivery. [1]
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Enterobacteria phage P4 (also known as satellite phage P4) is a temperate bacteriophage strain of species Escherichia virus P2 within genus Peduovirus (formerly P2-like viruses, P2virus, and P2likevirus), subfamily Peduovirinae, family Myoviridae. [1] It is a satellite virus, requiring P2-related helper phage to grow lytically.