Abstract：
:Expression of recombinant beak and feather disease virus (BFDV) capsid-associated protein (Cap) has relied on inefficient techniques that typically produce low yields or use specialized expression systems, which greatly increase the cost and expertise required for mass production. An Escherichia coli system was used to express recombinant BFDV Cap derived from two isolates of BFDV, from a Long-billed Corella (Cacatua tenuirostris) and an Orange-bellied parrot (OBP; Neophema chrysogaster). Purification by affinity and size exclusion chromatography was optimized through an iterative process involving screening and modification of buffer constituents and pH. A buffer containing glycerol, β-mercaptoethanol, Triton X-100, and a high concentration of NaCl at pH 8 was used to increase solubility of the protein. The final concentration of the corella-isolated BFDV protein was fifteen- to twenty-fold greater than that produced in previous publications using E. coli expression systems. Immunoassays were used to confirm the specific antigenicity of recombinant Cap, verifying its validity for use in continued experimentation as a potential vaccine, a reagent in diagnostic assays, and as a concentrated sample for biological discoveries.
journal_name
J Virol Methodsjournal_title
Journal of virological methodsauthors
Patterson EI,Swarbrick CM,Roman N,Forwood JK,Raidal SRdoi
10.1016/j.jviromet.2013.01.020subject
Has Abstractpub_date
2013-04-01 00:00:00pages
118-24issue
1eissn
0166-0934issn
1879-0984pii
S0166-0934(13)00025-6journal_volume
189pub_type
杂志文章abstract：:Commercially marketed kits are now available for rapid viral assay of clinical specimens. This study was conducted to determine the suitability of these kits for use in environmental testing. Eight rotavirus kits and one enteric adenovirus kit were screened for sensitivity using simian rotavirus SA11, human rotavirus ...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/0166-0934(93)90098-c
更新日期：1993-12-15 00:00:00
abstract：:Three tests were compared to diagnose herpes virus infection: electron microscopy (EM), viral culture (VC) and cytodiagnosis (Tzanck smear). The study comprised 67 patients with skin or mucous membrane lesions suggestive of herpes simplex virus (HSV) infection. The sensitivity of EM increased 25% after virus concentra...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/0166-0934(91)90106-a
更新日期：1991-10-01 00:00:00
abstract：:In preparation for field trials, a nuclear polyhedrosis virus (NPV) of the pine beauty moth, Panolis flammea, was mass produced in vivo in an alternative (heterologous) host, the cabbage moth, Mamestra brassicae. Simultaneously, Mamestra NPV was also produced in M. brassicae. This homologous NPV/host system was a cons...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/0166-0934(88)90019-5
更新日期：1988-03-01 00:00:00
abstract：:This study describes an approach to the molecular typing of rotaviruses which requires only a single RNA extraction and reverse transcription (RT) reaction using random primers. Random-primed RT provides complementary DNA (cDNA) which can be used not only for G- and P-typing polymerase chain reactions (PCR), but also ...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/s0166-0934(98)00168-2
更新日期：1999-03-01 00:00:00
abstract：:Porcine reproductive and respiratory syndrome virus (PRRSV) became a significant pathogen of swine upon its emergence in the late 1980s and since then has exemplified a rapidly evolving, constantly re-emerging pathogen. In addition to the challenges faced in development of vaccines and diagnostics, research on the bas...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2015.02.007
更新日期：2015-06-15 00:00:00
abstract：:It remains unclear whether hepatitis B virus (HBV) replicates in extrahepatic tissues, and particularly in peripheral blood mononuclear cells (PBMCs), which may serve as a reservoir for the maintenance of infection. A real-time PCR assay for the quantitation of total and covalently closed circular (ccc) HBV DNA in ser...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2006.07.019
更新日期：2006-12-01 00:00:00
abstract：:Double-stranded RNA (dsRNA) molecules of viruses are found in nature at a very high frequency. Their detection in plants and fungi has been carried out with difficulty due to the complicated dsRNA extraction techniques used commonly which includes phenol-chloroform extractions. In this study, an extraction method for ...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2008.06.001
更新日期：2008-09-01 00:00:00
abstract：:Due to the ease of collection, oral fluid is being investigated as an alternative to serum for diagnostic and epidemiological purposes. However, for prospective studies involving hepatitis A virus (HAV) RNA detection, a standard methodology must be developed. In the present study, nested RT-PCR and real-time PCR were ...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2007.10.020
更新日期：2008-03-01 00:00:00
abstract：:Mungbean yellow mosaic India virus (MYMIV) infecting soybean and other legumes causes yellow mosaic disease (YMD). Evaluation of soybean genotypes for YMD resistance involves field screening at disease hot spots or in a protected environment using infectious clones or viruliferous whiteflies as sources of virus inocul...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2019.03.002
更新日期：2019-06-01 00:00:00
abstract：:HIV antigen capture assay (ELISA) and reverse transcriptase assay were compared for the detection of HIV. Purified virus and the supernatant of infected cells were used for this study. Antigen capture assay was found to be at least one hundred times more sensitive than the RT assay, and for a large number of samples e...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/0166-0934(88)90044-4
更新日期：1988-05-01 00:00:00
abstract：:A new system for inoculation of plants with begomoviral DNA without cloning or the use insect vectors is described. Total DNA extracted from begomovirus-infected plants was amplified by rolling circle amplification (RCA) using the bacteriophage phi29 DNA polymerase, and inoculated to plants by particle bombardment. In...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2010.04.022
更新日期：2010-09-01 00:00:00
abstract：:A reverse transcription loop-mediated isothermal amplification (RT-LAMP) assay was developed for the rapid detection of equine coronavirus (ECoV). This assay was conducted at 60 °C for 40 min. Specificity of the RT-LAMP assay was confirmed using several equine intestinal and respiratory pathogens in addition to ECoV. ...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2015.02.001
更新日期：2015-04-01 00:00:00
abstract：:The diagnosis of acute hepatitis E infection is based on the detection of HEV RNA or specific IgM in immunocompetent patients. Viraemia and excretion of HEV RNA in faeces are not observed in all patients and commercial kits vary in their performance for anti-HEV IgM detection. Additional diagnostic tests must therefor...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2009.11.028
更新日期：2010-03-01 00:00:00
abstract：:To formulate inactivated influenza vaccines, the concentration of hemagglutinin (HA) must be accurately determined. The standard test currently used to measure HA in influenza vaccines is the Single Radial Immunodiffusion (SRID) assay. We developed a very rapid, simple and sensitive alternative quantitative HA assay, ...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2017.10.011
更新日期：2018-01-01 00:00:00
abstract：:The immunoperoxidase and immunoblotting techniques were used to detect measles virus antigens in nasopharyngeal samples taken from children visiting the Yaounde Health Centre (Cameroon). In order to make these diagnostic tests simpler, faster and less costly, peroxidase-labelled anti-measles IgG were prepared and comp...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/0166-0934(90)90011-4
更新日期：1990-07-01 00:00:00
abstract：:African Swine Fever Virus (ASFV) causes a transmissible and fatal disease in pigs that is currently devastating global swine production. Efficient and economical collection of genetic data from ASFV field isolates is essential for bio-surveillance, to limit and control its spread, and to better understand ASF disease ...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2020.113946
更新日期：2020-11-01 00:00:00
abstract：:The performance of the rapid confirmatory HIV 1/2 assay Geenius was compared with the conventional HIV 1/2 line immunoblot (INNO-LIA HIV I/II Score). One hundred HIV 1/2 confirmed positive samples from donors and patients and 136 negative screening samples from blood donors were evaluated with both assays. A 20 member...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2014.05.010
更新日期：2014-09-01 00:00:00
abstract：:Commercial enzyme-linked immunosorbent assay (ELISA) kits for the determination of the in vitro potency of recombinant hepatitis B vaccines, which detect hepatitis B surface antigen (HBsAg), have been used frequently as an alternative for traditional in vivo potency tests. With the constant need for validation procedu...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2010.12.010
更新日期：2011-03-01 00:00:00
abstract：:Sensitive, precise and rapid detection tests are needed in the quality control of rabies vaccine for rabies virus nucleoprotein. Previous studies for quantitation of rabies virus nucleoprotein focused on enzyme-linked immunosorbent assay (ELISA). A novel immunoassay for rapid determination of rabies virus nucleoprotei...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2014.06.002
更新日期：2014-09-01 00:00:00
abstract：:Combining primers created from the sequence information of two baculo-like viruses of penaeid shrimp, Baculovirus penaei (BP) and Monodon baculovirus (MBV), produced a 750 bp band on a 0.8% agarose gel using White Spot Syndrome Virus (WSSV), from Penaeus monodon, as the DNA template. The PCR fragment was ligated to a ...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/s0166-0934(96)02128-3
更新日期：1997-01-01 00:00:00
abstract：:Viruses belonging to the Flaviviridae family are found and distributed in most of the tropical and sub-tropical regions of the world. The genus has more than 56 members, most of which cause clinical symptoms in humans. The clinical diagnosis of dengue requires laboratory confirmation because of the similarity of sympt...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2012.08.006
更新日期：2012-12-01 00:00:00
abstract：:Virus titration may constitute a drawback in the development and use of replication-defective viral vectors like Semliki Forest virus (SFV). The standardization and validation of a reverse transcription quantitative PCR (qRT-PCR) method for SFV titration is presented here. The qRT-PCR target is located within the nsp1...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2013.07.058
更新日期：2013-11-01 00:00:00
abstract：:Resistance to oseltamivir in pandemic (H1N1) 2009 influenza A virus is linked to an amino acid change from histidine (H) to tyrosine (Y) at position 275 in the neuraminidase protein (NA). A real-time one step RT-PCR assay using single nucleotide polymorphism (SNP) probes was developed to detect this mutation in respir...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2011.02.014
更新日期：2011-05-01 00:00:00
abstract：:E(rns) is an envelope glycoprotein of classical swine fever virus (CSFV) with RNase activity. The purpose of this study was to produce an active E(rns) for further applications using the yeast secreted expression system. The E(rns) gene was cloned into the expression vector pGAPZalphaC which was introduced into Pichia...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2005.08.020
更新日期：2006-03-01 00:00:00
abstract：:Bovine Papillomavirus type 2 (BPV-2) and chronic intoxication by bracken fern ingestion were associated with urinary bladder lesions and the clinical signs of enzootic haematuria in adult cattle. Clinically enzootic haematuria is characterized by intermittent haematuria followed by animal death. Enzootic haematuria ca...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2005.01.021
更新日期：2005-06-01 00:00:00
abstract：:Infection with West Nile virus (WNV), a mosquito-borne flavivirus, is a growing public and animal health concern worldwide. Prevention, diagnosis and treatment strategies for the infection are urgently required. Recently, viral reverse genetic systems have been developed and applied to clinical WNV virology. We develo...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2014.08.002
更新日期：2014-11-01 00:00:00
abstract：:Four commercial test kits for parvovirus B19 IgM were evaluated by testing 491 sera assembled into 7 panels. The serum panels were designed to assess sensitivity and specificity of the commercial assays and to reflect the various clinical settings in which acute B19 infection forms part of the differential diagnosis. ...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/0166-0934(95)00040-2
更新日期：1995-09-01 00:00:00
abstract：:Attenuated and pathogenic viral variants are often extremely similar viruses with drastically different replication potentials. Despite precise knowledge of viral residues responsible for poliovirus attenuation/neurovirulence, molecular mechanisms mediating these effects remain poorly understood. Data from numerous so...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/s0166-0934(01)00319-6
更新日期：2001-07-01 00:00:00
abstract：:The consumption of bivalve shellfish is a common cause of foodborne outbreaks of viral origin. The evaluation of the sanitary quality of these products, however, is still based on bacterial indicators of fecal contamination (Reg. (EC) No. 2073/2005 and No.1441/2007) even if it is known that they are not reliable indic...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2009.09.003
更新日期：2010-01-01 00:00:00
abstract：:The hemagglutinin (HA) of avian influenza viruses plays a very important role in the infection of host cells. In this study, the HA gene of the highly pathogenic avian influenza H5N1 virus was cloned and expressed in silkworm larvae. The expressed recombinant HA (rHA) was purified using fetuin-agarose chromatography a...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2013.08.040
更新日期：2013-12-01 00:00:00
