نتایج جستجو برای: capsid protein
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Alphaviruses are enveloped viruses with highly organized structures. The nucleocapsid (NC) core contains a capsid protein lattice enclosing the plus-sense RNA genome, and it is surrounded by a lipid bilayer containing a lattice of the E1 and E2 envelope glycoproteins. Capsid protein is synthesized in the cytoplasm and particle budding occurs at the plasma membrane (PM), but the traffic and asse...
The first step of the intracellular phase retroviral infection is release viral capsid core in cytoplasm. This structure contains genetic material that will be reverse transcribed and integrated into genome infected cells. Up to recent times, role was considered essentially protect this during earlier phases process. However, increasing evidence demonstrates permanence inside cell as an intact,...
Many viruses that assemble their capsids in the eukaryotic cytoplasm require a threshold concentration of capsid protein to achieve capsid assembly. Strategies for achieving this include maintaining high levels of capsid protein synthesis and targeting to specific sites to raise the effective concentration of capsid polypeptides. To understand how different viruses achieve the threshold capsid ...
BACKGROUND: Canine Parvovirus (CPV) is one of the major causes of fatal gastroenteritis in young dogs. After emergence of CPV-2, two new variants were reported and named CPV-2a and CPV-2b. In 2001 the newest variant was reported and named CPV-2c. The difference between CPV strains is related to amino acid changes in viral capsid protein (VP2). OBJECTIVES: The aim of the present study was geneti...
It is generally believed that cellular chaperones facilitate the folding of virus capsid proteins, or that capsid proteins fold spontaneously. Here we show that p73, the major capsid protein of African swine fever virus (ASFV) failed to fold and aggregated when expressed alone in cells. This demonstrated that cellular chaperones were unable to aid the folding of p73 and suggested that ASFV may ...
Flaviviruses have a spherical capsid that is composed of multiple copies of a single capsid protein and, in contrast to the viral envelope, apparently does not have an icosahedral structure. So far, attempts to isolate distinct particulate capsids and soluble forms of the capsid protein from purified virions as well as to assemble capsid-like particles in vitro have been largely unsuccessful. H...
the human papillomavirus l1 major capsid protein (hpv l1), the basis of the current vaccines, self-assembles into virus-like particles (vlps). herein, we describe the expression and purification of recombinant hpv16 l1 in e. coli system. the l1 protein was generated in a fused form using an inducible expression system. the recombinant gst-l1 fusion protein migrated as a 82 kda protein in sds-pa...
Transmitted by mosquitoes; chikungunya virus (CHIKV) is responsible for frequent outbreaks of arthritic disease in humans. CHIKV is an arthritogenic alphavirus of the Togaviridae family. Capsid protein, a structural protein encoded by the CHIKV RNA genome, is able to translocate to the host cell nucleus. In encephalitic alphaviruses nuclear translocation induces host cell shut off; however, the...
We have generated a eDNA clone of the MAY isolate of barley yellow dwarf virus (BYDY) containing the entire capsid protein coding region. The eDNA was synthesized by the method of Gubler and Hoffman (1) using an oligonucleotide primer (5'-GTCTACCTATTTGG-3') complementary to the 3' terminus of the capsid protein gene of the PAY isolate of BYDY (2). A pUC18 derivative (pMAY1) containing a 3.5 eDN...
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