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Articles list with the same subject [Transcription] of Virologica Sinica
Though efficient vaccines against hepatitis B virus (HBV) and antiviral therapies are available,chronic HBV infection is still a global health problem. The process of HBV infection and HBV life cycle are extensively studied in last decades, however, the mechanisms of HBV-induced alterations of host ..., Abstract
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During transcription initiation, RNA polymerase binds tightly to the promoter DNA defining the start of transcription, transcribes comparatively slowly, and frequently releases short transcripts (3-8 nucleotides) in a process called abortive cycling. Transitioning to elongation, the second phase of ..., Abstract
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A quantitative real time reverse-transcription polymerase chain reaction (qRT-PCR) assay with specific primers recommended by the World Health Organization (WHO) has been widely used successfully for detection and monitoring of the pandemic H1N1/2009 influenza A virus. In this study, we report the ..., Abstract
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A real-time monitoring reverse transcription loop-mediated isothermal amplification (RT-LAMP) assay was developed for the sensitive and specific detection of prototypic, prevalent North American porcine reproductive and respiratory syndrome virus (PRRSV) strains. As a higher sensitivity and ..., Abstract
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The protein HTRP (human transcription regulator protein) is encoded by the differential gene htrp and induced by Herpes simplex virus type 1 (HSV-1) infection in KMB-17 cells. HTRP was found to interact with SAP30 (mSin3A Association Protein), one of the components of co-repressor complex mSin3A ..., Abstract
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Nuclear proteins often form punctiform structures, but the precise mechanism for this process is unknown. As a preliminary study, we investigated the aggregation of an HSV-1 immediate-early protein, infected-cell protein 22 (ICP22), in the nucleus by observing the localization of ICP22-EGFP fusion ..., Abstract
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A simple and rapid assay for the detection of Classical swine fever virus (CSFV) was established using reverse transcription loop-mediated isothermal amplification (RT-LAMP). This study describes the amplification of the genomic RNA of CSFV under isothermal conditions (63℃) within one hour, using ..., Abstract
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The ichnovirus TrIV, transmitted by the endoparasitic wasp Tranosema rostrale to its lepidopteran host during oviposition, replicates asymptomatically in wasp ovaries and causes physiological dysfunctions in parasitized caterpillars. The need to identify ichnoviral genes responsible for ..., Abstract
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The molecular modifications of Herpes Simplex Virus Type I (HSV-1) proteins represented by acetylation and phosphorylation are essential to its biological functions. The cellular chromatin-remodeling/ assembly is involved in HSV-1 associated gene transcriptional regulation in human cells ..., Abstract
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The aim of this study was to characterize functions of the unknown open-reading frames, Orf7, Orf8 and Orf9 within the Severe acute respiratory syndrome coronavirus (SARS-CoV) genome. We cloned the cDNAs of Orf7, Orf8, Orf9 from the SARS-CoV BJ01 strain were cloned by RT-PCR and constructed into ..., Abstract
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The technique of immune capture reverse transcription real-time PCR (IC-RT-Realtime PCR) was applied for the first time to detect Tobacco ringspot virus. When detecting virus, it was shown to be advantageous in terms of specificity and sensitivity to integrate several techniques, such as specific ..., Abstract
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The transcription profiles of nine selected HaSNPV genes, e.g. early phase genes, early and late phase genes, late phase genes and very late phase genes were analyzed using reverse transcription and real-time quantitative PCR. The results indicated that for most of these genes ..., Abstract
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The cDNA and genomic DNA of ribosomal protein L13 (RpL13) gene were cloned from Helicoverpa zea cells(HzAM1). Sequence analysis indicated that the open reading frame of rpL13 was composed of 666bp without intron,encoding a protein of 25 kDa. The sequence was used to construct phylogentic trees with ..., Abstract
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Based on the reported Big liver and spleen disease virus (BLSV) gene sequence, a pair of primers was designed and a 375bp product was amplified from the total RNA extracted from homogenates of BLSV-infected livers. Twenty liver samples were randomly collected from two commercial broiler breeder ..., Abstract
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To investigate Hepatitis E virus,(HEV) infection in swine in Xinjiang and the extent of genetic variation among Chinese swine HEV strains, seventy pig fecal samples from an anti-HEV positive farm in Xinjiang were tested for the presence of HEV RNA by reverse transcription nested polymerase chain ..., Abstract
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The conotoxinlike (ctl) gene is a small gene in the genomes of several baculoviruses. The biological function of baculoviral ctl gene remains unknown. In this report, we generated a recombinant AcMNPV(AcBac-ph-ctl) which contains the ctl gene from BusuNPV using AcMNPV bacmid system. The ..., Abstract
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The purpose of this study is to establish a new method which HCV RNA can be used to detect sensitively and specifically through efficient single strand RNAs(ssRNAs) amplification. The sera from the chronic Hepatitis C patients were used as specimens. Single step reverse transcription-PCR (SRT-PCR) ..., Abstract
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Sensitive, rapid, and reliable immuno capture PCR (IC PCR), ELISA PCR and Nested PCR assays were developed for the first time to detect PRV. It was detected from dilutions of 10 -4 , 10 -7 and 10 -14 (equivalent to 0.5 ug, 0.5 ng and 5×10 -8 ng of papaya leaf tissues) by IC PCR, ELISA PCR and ..., Abstract
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The structure of nuclear matrix in Tn5B1 cell infected with AcMNPV was observed by means of sequential cell fractionation and whole mount technique of electron microscopy. Whereas early infection of AcMNPV resulted in no dramatic change in the nuclear matrix morphologically, polyhedra formed in the ..., Abstract
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Preparation of infectious RNA by in vitro transcription from full length cDNA has led to advances in the study of many positive strand RNA viruses. There are two strategies of preparing full length cDNA of RNA viruses: (1)construction of infectious clone. (2)amplification of full length cDNA by ..., Abstract
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