Abstract：
:The Hepadnavirus core protein is a viral structural protein with an N-terminal self-assembling domain and a C-terminal protamine-like arginine-rich domain (ARD). The ARD contains four clusters of arginine residues involved in RNA binding, genome DNA synthesis, and nuclear localization. Characterization of the multi-functions of ARD has been impeded due to the insoluble nature of the core protein expressed in vitro. A GST (glutathione-S-transferase) and ARD fusion protein, GST-ARD, was expressed and purified in this study. Gel mobility shift assays using purified GST-ARD fusion proteins demonstrated that, similar to protamine, the ARD domain of the core protein bound to oligonucleotides without sequence preference. In vitro affinity chromatography binding assays showed further that the ARD bound to tested random plasmid DNA in a sequence-independent manner. The GST-ARD fusion protein-based approach can be employed further to study other biochemical properties of the core protein.
journal_name
J Virol Methodsjournal_title
Journal of virological methodsauthors
Lu L,Liu W,Yang Xdoi
10.1016/j.jviromet.2009.01.025subject
Has Abstractpub_date
2009-06-01 00:00:00pages
195-8issue
1-2eissn
0166-0934issn
1879-0984pii
S0166-0934(09)00027-5journal_volume
158pub_type
杂志文章abstract：:The purpose of this study was to explore the efficacy of using differential display (DD) to isolate viral genomic sequence using tissues from infected organisms so that a PCR procedure to detect the pathogen may be developed rapidly. The model virus used was the Taura syndrome virus (TSV), a ssRNA virus that cause hig...
journal_title：Journal of virological methods
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journal_title：Journal of virological methods
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journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2006.06.008
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journal_title：Journal of virological methods
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abstract：:Hepatitis B micelles containing the p25 component of hepatitis B surface antigen (HBsAg) have been produced by Triton X-100 solubilization followed by ultracentrifugation in linear sucrose gradients. The product was found to resemble micelle forms prepared from plasma-derived HBsAg with the surface being composed of d...
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journal_title：Journal of virological methods
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journal_title：Journal of virological methods
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journal_title：Journal of virological methods
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abstract：:Epidemics of acute hemorrhagic conjunctivitis are always explosive and extensive, and have been recognized as a serious international public health problem. Enterovirus 70 and coxsackievirus A24 variant have been identified as the major etiological agents in acute hemorrhagic conjunctivitis outbreaks worldwide. A nove...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2009.02.022
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abstract：:SIV infection in macaques has become an important animal model for HIV-1 infection in humans. An antibody assay was therefore developed and compared to a commercially available antigen assay with respect to their usefulness to monitor the course of simian immunodeficiency virus (SIV) infection in cynomolgus monkeys. A...
journal_title：Journal of virological methods
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doi：10.1016/0166-0934(92)90019-a
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journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2008.02.004
更新日期：2008-05-01 00:00:00
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journal_title：Journal of virological methods
pub_type： 杂志文章
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abstract：:Avian influenza virus (AIV) is an enveloped virus with segmented RNA that belongs to the Orthomyxoviridae. Recently, avian influenza virus isolates have not only posed a significant threat to the poultry industry but also serious public health concerns. The full-length viral hemagglutinin (HA), neuraminidase (NA) or b...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2011.05.006
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abstract：:HTLV-1 and HTLV-2 are highly related delta-retroviruses that infect and transform T-lymphocytes, but have distinct pathogenic properties. HTLV replication and survival requires the expression of multiple gene products from an unspliced and a series of highly related alternatively spliced mRNA species. To date, the com...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2007.01.023
更新日期：2007-06-01 00:00:00
abstract：BACKGROUND:Influenza causes a significant annual disease burden, with characterization of the infecting virus important in clinical and public health settings. Rapid immunoassays are fast but insensitive, whereas real-time RT-PCR is sensitive but susceptible to genetic mutations and often requires multiple serial assay...
journal_title：Journal of virological methods
pub_type： 杂志文章,多中心研究
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abstract：:A recombinant murine cytomegalovirus (mCMV) that expresses enhanced green fluorescent protein (EGFP) under control of the native immediate-early 1/3 promoter was constructed to detect directly sites of viral activity in latent and reactivated infections. The recombinant virus had acute and latent infection characteris...
journal_title：Journal of virological methods
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abstract：:The hemagglutination inhibition (HI) assay has been the main method used to investigate immune responses to vaccination against influenza H1N1 (2009) virus. However microneutralization tests (MNT) have been shown to be more sensitive and more specific. In this study, the three methods of choice: (i) the HI assay, (ii)...
journal_title：Journal of virological methods
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更新日期：2011-02-01 00:00:00
abstract：:Pigs have been suggested to be a potential reservoir for locally acquired human hepatitis E virus (HEV) infections in the Netherlands. To study possible trends in HEV prevalence in the Dutch pig population, 97 pig farms have been screened for the presence of HEV in stools. The prevalence rate of HEV was estimated at 5...
journal_title：Journal of virological methods
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doi：10.1016/j.jviromet.2007.01.030
更新日期：2007-07-01 00:00:00
abstract：:A single amino acid substitution, from histidine to tyrosine at position 274 of the neuraminidase gene has converted Oseltamivir sensitive H5N1 influenza A virus into a resistant strain. Currently, Oseltamivir is being stockpiled in many countries potentially affected by the influenza A virus subtype H5N1 epidemic. To...
journal_title：Journal of virological methods
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doi：10.1016/j.jviromet.2006.09.007
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abstract：:Participation in external quality assessment programs is critical to ensure quality clinical laboratory testing. Commercially available proficiency test panels for HIV-1 virus load testing that are used commonly in external quality assessment programs remain a financial obstacle to resource-limited countries. Maintain...
journal_title：Journal of virological methods
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abstract：:Three serologic methods for the detection of antibodies to bovine leukemia virus (BLV) were compared using the sera of 140 dairy cows. A widely used commercial agarose immunodiffusion screening assay and a commercial antibody capture enzyme immunosorbent assay were compared for sensitivity and specificity with immunob...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/s0166-0934(02)00040-x
更新日期：2002-06-01 00:00:00
abstract：:An enzyme avidin-biotin assay for the detection of anti-HBcAg antibody in human sera was developed. The assay uses genetically engineered HBcAg. HBcAg is immobilized on the surface of the wells of microtitre plates and the test serum sample, biotin-labelled HBcAg and streptavidin-labelled horseradish peroxidase are ad...
journal_title：Journal of virological methods
pub_type： 杂志文章
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abstract：:In recent years, there has been an increase in reported cases of fowl adenovirus serotype 4 (FAdV-4) in chickens in China. The use of live attenuated vaccines contaminated with FAdV-4 has been proved to be one of the important causes of massive outbreaks of hydropericardium syndrome. To detect the contamination with F...
journal_title：Journal of virological methods
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更新日期：2019-03-01 00:00:00
abstract：:Herpes simplex virus type 1 (HSV-1) UL3 protein is a nuclear protein. In this study, the molecular mechanism of the subcellular localization of UL3 was characterized by fluorescence microscopy in living cells. A nuclear localization signal (NLS) and a nuclear export signal (NES) were also identified. UL3 was demonstra...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2011.08.004
更新日期：2011-11-01 00:00:00
abstract：:We describe a simple method for the incorporation of biotin into nucleic acid probes. This method has been improved and optimized to produce biotinylated DNA probes for the detection of DNA by dot-blot, Southern and colony hybridization techniques. The sensitivity of this method has been particularly improved to allow...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/0166-0934(89)90072-4
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abstract：:A fluorogenic reverse transcriptase-polymerase chain reaction (RT-PCR) system was developed for use as a rapid diagnostic test for determining dengue viremia. The dengue virus 3'-noncoding sequence was utilized to formulate serotype-specific RT-PCR assays for quantitative identification of the four different dengue vi...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/s0166-0934(01)00280-4
更新日期：2001-06-01 00:00:00
