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https://www.readbyqxmd.com/read/28213698/rice-grassy-stunt-virus-p5-interacts-with-two-protein-components-of-the-plant-specific-cbl-cipk-ca-2-signaling-network-of-rice
#1
Guihong Xiong, Xiaojuan Liu, Ping Qiu, Xiaoyong Wu, Zhenguo Du, Jie Zhang, Liang Yang, Zujian Wu
Rice grassy stunt virus (RGSV) is a tenuivirus posing a threat to rice production in many South, Southeast, and East Asian countries. To date, no host factor interacting with RGSV has been reported. In this study, we screened a rice cDNA library with the GAL4-based yeast two-hybrid system using RGSV p5 as the bait. One of the candidate host factors interacting with RGSV p5 was found to be CBL-interacting protein kinase 25 (OsCIPK25), a member of the plant-specific CBL-CIPK Ca(2+) signaling network. The interaction between RGSV p5 and OsCIPK25, as well as OsCIPK5, which is closely related to OsCIPK25, was confirmed by their cellular co-localization and by a bimolecular fluorescence complementation assay in Nicotiana benthamiana cells...
February 17, 2017: Virus Genes
https://www.readbyqxmd.com/read/28205052/a-novel-subgenotype-3a-hepatitis-e-virus-isolated-from-pigs-in-china
#2
Yufeng Cao, Lisai Zhu, Dan Liu, Changming Guo, Yue Yuan, Chengbo Shi, Zhaohui Liu, Xinping Wang
Hepatitis E virus (HEV) infection is an emerging disease with zoonotic transmission that represents a serious public health concern, especially in developing countries. Here we characterize a novel HEV strain CCST-517, which possesses a complete genome sequence of 7284 bp with typical HEV genome organization including 5' and 3' non-coding regions and three open reading frames. The sequence identities of CCST-517 with known HEV genotype 1, 2, 3, and 4 were 73.4-73.7, 73.2, 80.4-90.4, and 75.1-75.7%, respectively...
February 15, 2017: Virus Genes
https://www.readbyqxmd.com/read/28194622/characterization-of-a-gallid-herpesvirus-2-strain-with-novel-reticuloendotheliosis-virus-long-terminal-repeat-inserts
#3
Yan-Ping Zhang, Ke-Yan Bao, Guo-Rong Sun, Hong-Chao Lv, Hong-Yu Cui, Yu-Long Gao, Xiao-Mei Wang, Chang-Jun Liu
A bacterial artificial chromosome clone, designated LCY, was constructed from a Gallid herpesvirus 2 (GaHV-2) isolate from a GaHV-2 and reticuloendotheliosis virus co-infected clinical sample. The LCY GaHV-2 insert was sequenced and found to consist of 175,319 nucleotides. LCY GaHV-2 open reading frames (ORFs) had a high sequence identity to those of reference strains. The major difference was that two REV long terminal repeats (LTRs), in the same direction, were inserted at the internal repeat short (IRs)/unique short (Us) and Us/terminal repeat short (TRs) junctions...
February 13, 2017: Virus Genes
https://www.readbyqxmd.com/read/28190135/identification-and-characterization-of-orf-virus-050-protein-proteolysis
#4
Han Wang, Junyi Jiang, Rui Ding, Xiaoping Wang, Meiying Liao, Jing Shao, Xiaohong Luo, Shuhong Luo, Chaohui Duan
The Orf virus 050 (ORFV050) gene is located in the core region of the ORFV genome. It is similar to Vaccinia virus (VV) Copenhagen L4R, and encodes the DNA-binding virion core protein VP8, which has structures similar to the VV P25K core protein and may undergo similar proteolytic processing during virus assembly. Three conserved Ala-Gly-X motifs at putative cleavage sites were identified in ORFV050. To investigate the proteolysis of ORFV050 and its participation in viral assembly, full-length and site-directed mutant ORFV050 recombinant proteins were constructed and expressed...
February 11, 2017: Virus Genes
https://www.readbyqxmd.com/read/28188458/tanapoxvirus-lacking-the-15l-gene-inhibits-melanoma-cell-growth-in-vitro-by-inducing-interferon-%C3%AE-1-release
#5
Tiantian Zhang, Karim Essani
Oncolytic viruses (OVs) have emerged as a promising approach for melanoma treatment by causing tumor lysis and inducing immuno-modulatory activities. Tanapoxvirus (TPV), which causes a mild self-limiting disease in humans and contains a large DNA genome, appears as a promising OV candidate. TPV recombinants were generated with the thymidine kinase/66R gene deletion (TPVΔ66R), the 15L gene deletion (TPVΔ15L), or with both the 15L and 66R gene ablation (TPVΔ15LΔ66R). Our previous studies have shown that treatment of TPVΔ15L resulted in significant tumor regression in xenotransplanted human melanoma in nude mice...
February 10, 2017: Virus Genes
https://www.readbyqxmd.com/read/28185139/rescue-of-a-recombinant-newcastle-disease-virus-strain-r2b-expressing-green-fluorescent-protein
#6
Madhan Mohan Chellappa, Sohini Dey, Satish Gaikwad, Dinesh C Pathak, Vikram N Vakharia
Newcastle disease virus (NDV), strain R2B is a mesogenic vaccine strain used for booster vaccination in chickens against Newcastle disease in India and many south East Asian countries. A full-length cDNA clone of the virus was generated by ligating eight overlapping fragments generated by reverse transcription polymerase chain reaction having unique restriction enzyme sites within them. This full-length cDNA clone was flanked by hammerhead ribozyme and hepatitis delta virus ribozyme sequences. Defined genetic markers were introduced into the NDV genome to differentiate the rescued virus from the parent virus...
February 9, 2017: Virus Genes
https://www.readbyqxmd.com/read/28185138/the-fourth-central-polypurine-tract-guides-the-synthesis-of-prototype-foamy-virus-plus-strand-dna
#7
Dongxue Chen, Jing Song, Yan Sun, Zhi Li, Didi Wen, Qingmei Liu, Wanhong Liu, Xiaohua He
Foamy virus (FV) is a nonpathogenic retrovirus that has the potential to serve as a gene therapy vector. In retroviral replication, the central polypurine tract (cPPT) is used as a primer to synthesize plus-strand DNA. The cPPT is subsequently degraded to produce a single-stranded gap in the double-stranded viral DNA molecule. In the prototype foamy virus (PFV), four cPPT-like motifs have been previously identified, in which there is a gap with uncertain terminals. In this study, we determined the length of the PFV gap varying from 144 to 731 bp...
February 9, 2017: Virus Genes
https://www.readbyqxmd.com/read/28176160/a-novel-enterovirus-96-circulating-in-china-causes-hand-foot-and-mouth-disease
#8
Yi Xu, Yisuo Sun, Jinmin Ma, Shuru Zhou, Wei Fang, Jiawei Ye, Limei Tan, Jingkai Ji, Dan Luo, Liqiang Li, Jiandong Li, Chunxiao Fang, Na Pei, Shuo Shi, Xin Liu, Hui Jiang, Sitang Gong, Xun Xu
Enterovirus 96 (EV-96) is a recently described member of the species Enterovirus C and is associated with paralysis and myelitis. In this study, using metagenomic sequencing, we identified a new enterovirus 96 strain (EV-96-SZ/GD/CHN/2014) as the sole pathogen causing hand, foot, and mouth disease (HFMD). A genomic comparison showed that EV-96-SZ/GD/CHN/2014 is most similar to the EV-96-05517 strain (85% identity), which has also been detected in Guangdong Province. This is the first time that metagenomic sequencing has been used to identify an EV-96 strain shown to be associated with HFMD...
February 7, 2017: Virus Genes
https://www.readbyqxmd.com/read/28176159/new-korean-isolates-of-pepper-mild-mottle-virus-pmmov-differ-in-symptom-severity-and-subcellular-localization-of-the-126%C3%A2-kda-protein
#9
Sang-Hyuk Han, Jong-Seo Park, Jae-Yeong Han, Jun-Su Gong, Chan-Hwan Park, Jung-Kyu Kim, Eun-Young Seo, Leslie L Domier, John Hammond, Hyoun-Sub Lim
Two isolates of Pepper mild mottle virus (PMMoV) were selected from a nationwide survey of pepper fields in South Korea in 2014 and 2015, in which Cucumber mosaic virus was also detected; the two PMMoV isolates, Sangcheong 47 (S-47, KX399390) and Jeongsong 76 (J-76, KX399389), share ~99% nucleotide and amino acid identity and are closely related to Japanese and Chinese isolates at the nucleotide level. Amino acid sequence comparisons revealed 99.73, 99.81, 98.44, and 100% identity in the ORF1, ORF2, MP, and CP, respectively, between S-47 and J-76...
February 7, 2017: Virus Genes
https://www.readbyqxmd.com/read/28130636/molecular-epidemiology-of-pseudorabies-virus-in-yunnan-and-the-sequence-analysis-of-its-gd-gene
#10
Chunlian Song, Libo Gao, Weibing Bai, Xingqin Zha, Gefen Yin, Xianghua Shu
Outbreaks of pseudorabies (PRs) have occurred in Yunnan, China, which caused significant economic loss. To determine the prevalence and origin of PR in Yunnan, especially among vaccinated pigs, overall 791 samples of blood, tissue, semen, and sera were analyzed by serological methods, PCR, and sequence analysis of gD gene. Detection with viral gI antibody or PCR showed that the yearly positive rates of PR virus (PRV) in Yunnan from 2010 to 2014 were 48.15, 21.26, 2.17, 5.22, and 0.35%, respectively, with an average of 15...
January 28, 2017: Virus Genes
https://www.readbyqxmd.com/read/28028680/establishment-of-mouse-leukemia-cell-lines-expressing-human-cd4-ccr5-using-lentiviral-vectors
#11
Ya-Jing Li, Fu-Yan ZhuGe, Chang-Chun Zeng, Jin-Yang He, Ning Tan, Juan Liang
A low-cost rodent model of HIV infection and which presents high application value is an effective tool to investigate HIV infection and pathogenesis. However, development of such a small animal model has been hampered by the unsuitability of rodent cells for HIV-1 replication given that the retrovirus HIV-1 has high selectivity to its host cell. Our study used the mouse leukemia cell lines L615 and L1210 that were induced by murine leukemia virus and transfected with hCD4/CCR5 loaded-lentiviral vector. Lentiviral vectors containing the genes hCD4/CCR5 under the transcriptional control of cytomegalovirus promoter were designed...
December 28, 2016: Virus Genes
https://www.readbyqxmd.com/read/28013454/comparative-genomic-analysis-of-three-white-spot-syndrome-virus-isolates-of-different-virulence
#12
Fang Li, Meiling Gao, Limei Xu, Feng Yang
Three white spot syndrome virus (WSSV) isolates of different virulence were identified in our previous study, the high-virulent strain WSSV-CN01, the moderate-virulent strain WSSV-CN02 and the low-virulent strain WSSV-CN03. In this study, the genomes of these three WSSV isolates were sequenced, annotated and compared. The genome sizes for WSSV-CN01, WSSV-CN02, and WSSV-CN03 are 309,286, 294,261, and 284,148 bp, bearing 177, 164, and 154 putative protein-coding genes, respectively. The genomic variations including insertions, deletions, and substitutions were investigated...
December 24, 2016: Virus Genes
https://www.readbyqxmd.com/read/28012011/molecular-characterization-of-a-distinct-monopartite-begomovirus-associated-with-betasatellites-and-alphasatellites-infecting-pisum-sativum-in-nepal
#13
M S Shahid, B J Pudashini, G B Khatri-Chhetri, R W Briddon, K T Natsuaki
Pea (Pisum sativum) plants exhibiting leaf distortion, yellowing, stunted growth and reduction in leaf size from Rampur, Nepal were shown to be infected by a begomovirus in association with betasatellites and alphasatellites. The begomovirus associated with the disease showed only low levels of nucleotide sequence identity (<91%) to previously characterized begomoviruses. This finding indicates that the pea samples were infected with an as yet undescribed begomovirus for which the name Pea leaf distortion virus (PLDV) is proposed...
December 23, 2016: Virus Genes
https://www.readbyqxmd.com/read/28012010/assessment-of-hcv-genotypes-in-yunnan-province-of-southwest-china
#14
Qiongfen Li, Yufeng Yao, Yunsong Shen, Danfeng Cao, Yalin Li, Shuqiong Zhang, Wei Cun, Mingbo Sun, Jiankun Yu, Li Shi, Shaozhong Dong
Recently, we reported that the frequency of hepatitis C virus (HCV) genotypes and subtypes has rapidly changed among intravenous drug users (IDUs) in Yunnan Province over the last 5 years; this is especially true for subtype 6a which has increased in frequency from 5 to 15%. Here, we assessed 120 HCV-positive plasma samples from the general population (GP). HCV NS5B fragments were amplified and sequenced by PCR. We identified four HCV genotypes (1, 2, 3 and 6) and seven HCV subtypes (1b, 2a, 3a, 3b, 6a, 6n, and 6k) in this population...
December 23, 2016: Virus Genes
https://www.readbyqxmd.com/read/28005234/the-genetic-diversity-and-complete-genome-analysis-of-two-novel-porcine-deltacoronavirus-isolates-in-thailand-in-2015
#15
Athip Lorsirigool, Kepalee Saeng-Chuto, Adthakorn Madapong, Gun Temeeyasen, Thitima Tripipat, Pavita Kaewprommal, Angkana Tantituvanont, Jittima Piriyapongsa, Dachrit Nilubol
Porcine deltacoronavirus (PDCoV) was identified in intestinal samples collected from piglets with diarrhea in Thailand in 2015. Two Thai PDCoV isolates, P23_15_TT_1115 and P24_15_NT1_1215, were isolated and identified. The full-length genome sequences of the P23_15_TT_1115 and P24_15_NT1_1215 isolates were 25,404 and 25,407 nucleotides in length, respectively, which were relatively shorter than that of US and China PDCoV. The phylogenetic analysis based on the full-length genome demonstrated that Thai PDCoV isolates form a new cluster separated from US and China PDCoV but relatively were more closely related to China PDCoV than US isolates...
December 22, 2016: Virus Genes
https://www.readbyqxmd.com/read/28004232/splicing-features-in-the-expression-of-the-complementary-sense-genes-of-beet-curly-top-iran-virus
#16
Naghmeh Bozorgi, Jahangir Heydarnejad, Mehdi Kamali, Hossain Massumi
Beet curly top Iran virus (BCTIV) is a distinct geminivirus which has been reported from sugar-beet-growing farms in Iran. In this study, the role of the splicing in expression of complementary-sense genes of BCTIV was studied. Total RNA was extracted from BCTIV-infected tissue, and the predicted intron position of complementary-sense mRNA transcripts was amplified by RT-PCR followed by cloning of the amplicons. Sequence confirmed that both spliced and unspliced mRNAs are synthesized by the same transcription unit...
December 21, 2016: Virus Genes
https://www.readbyqxmd.com/read/28000081/rotavirus-nsp486-175-interacts-with-h9c2-2-1-cells-in-vitro-elevates-intracellular-ca-2-levels-and-can-become-cytotoxic-a-possible-mechanism-for-extra-intestinal-pathogenesis
#17
Xiaoshun Xiong, Yinyin Hu, Caixia Liu, Xiangyang Li
Rotavirus (RV) is the predominant cause of infantile gastroenteritis with multiple pathogenic factors, among which enterotoxin NSP4 is the most significant factor. NSP4 has been shown to induce elevation of the intracellular calcium concentration, alteration of the cytoskeleton organization, and cytopathic effect among other processes. However, increasing evidence suggests that RVs can escape from the gastrointestinal tract and invade other organs and tissues to cause extra-intestinal diseases. In this study, we investigated whether NSP4 has a pathogenic effect on extra-intestinal cells and examined possible molecular mechanisms in vitro...
December 20, 2016: Virus Genes
https://www.readbyqxmd.com/read/28000080/a-bioinformatics-pipeline-to-search-functional-motifs-within-whole-proteome-data-a-case-study-of-poxviruses
#18
Haitham Sobhy
Proteins harbor domains or short linear motifs, which facilitate their functions and interactions. Finding functional motifs in protein sequences could predict the putative cellular roles or characteristics of hypothetical proteins. In this study, we present Shetti-Motif, which is an interactive tool to (i) map UniProt and PROSITE flat files, (ii) search for multiple pre-defined consensus patterns or experimentally validated functional motifs in large datasets protein sequences (proteome-wide), (iii) search for motifs containing repeated residues (low-complexity regions, e...
December 20, 2016: Virus Genes
https://www.readbyqxmd.com/read/27943061/identification-and-characterization-of-host-cell-proteins-interacting-with-scylla-serrata-reovirus-non-structural-protein-p35
#19
Yangyang Yuan, Dongyang Fan, Sidong Zhu, Jifang Yang, Jigang Chen
We have previously shown that non-structural protein p35, encoded by Scylla serrata reovirus (SsRV) S10, may act as a viroporin. To characterize the role of p35 protein in the modulation of cellular function, a yeast two-hybrid system was used to screen a cDNA library derived from S. serrata to find its interacting partner. Protein interactions were confirmed in vitro by GST pull-down. Full cDNAs of p35 interactors were cloned by the rapid amplification of cDNA ends. After two-hybrid library screening, we isolated partial cDNAs encoding hemocyanin, cryptocyanin, and TAX1BP1...
December 9, 2016: Virus Genes
https://www.readbyqxmd.com/read/27933433/full-length-infectious-clone-of-an-iranian-isolate-of-chicken-anemia-virus
#20
Amir Kaffashi, Fatemeh Eshratabadi, Abdelhamed Shoushtari
An Iranian field strain of chicken anemia virus (CAV), designated IR CAV, was isolated in the Marek's disease virus-transformed lymphoblastoid cell line MDCC-MSB1 (MSB1) culture for the first time. The full-length CAV DNA of this strain was cloned in the bacterial plasmid pTZ57R/T to create the molecular clone pTZ-CAV. The nucleotide and deduced amino acid sequences of viral proteins of IR CAV were compared with those of representative CAV sequences including reference and commercial vaccine strains. IR CAV was not related to vaccine strains and also found to have glutamine at positions 139 and 144 confirming previous studies in which such mutations were associated with a slow rate of virus spread in cell culture...
December 8, 2016: Virus Genes
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