Base de dados : MEDLINE
Pesquisa : G05.360.340.358.840 [Categoria DeCS]
Referências encontradas : 21477 [refinar]
Mostrando: 1 .. 10   no formato [Detalhado]

página 1 de 2148 ir para página                         

  1 / 21477 MEDLINE  
              next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:28463753
[Au] Autor:Walker A; Bergmann M; Camdereli J; Kaiser R; Lübke N; Timm J
[Ad] Endereço:Institute of Virology, Heinrich-Heine-University, University Hospital, Düsseldorf, Germany.
[Ti] Título:A genotype independent, full-genome reverse-transcription protocol for HCV genotyping and resistance testing.
[So] Source:J Clin Virol;91:42-48, 2017 06.
[Is] ISSN:1873-5967
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: HCV treatment options and cure rates have tremendously increased in the last decade. Although a pan-genotype HCV treatment has recently been approved, most DAA therapies are still genotype specific. Resistance-associated variants (RAVs) can limit the efficacy of DAA therapy and are associated with increased risk for therapy failure. With the approval of DAA regimens that recommend resistance testing prior to therapy, correct assessment of the genotype and testing for viruses with RAVs is clinically relevant. However, genotyping and resistance testing is generally done in costly and laborious separate reactions. OBJECTIVE: The aim of the study was to establish a genotype-independent full-genome reverse transcription protocol to generate a template for both genotyping and resistance testing and to implement it into our routine diagnostic setup. STUDY DESIGN: The complete HCV genome was reverse transcribed with a pan-genotype primer binding at the 3'end of the viral RNA. This cDNA served as template for transcription of the genotyping amplicon in the core region as well as for the resistance testing of NS3, NS5A, and NS5B. RESULTS: With the established RT-protocol the HCV core region was successfully amplified and genotyped from 124 out of 125 (99.2%) HCV-positive samples. The amplification efficiency of RAV containing regions in NS3, NS5A, NS5B was 96.2%, 96.6% and 94.4%, respectively. CONCLUSIONS: We developed a method for HCV full-genome cDNA synthesis and implemented it into a routine diagnostic setup. This cDNA can be used as template for genotyping amplicons covering the core or NS5B region as well as for resistance testing amplicons in NS3, NS5A and NS5B.
[Mh] Termos MeSH primário: Farmacorresistência Viral/genética
Genoma Viral/genética
Técnicas de Genotipagem
Hepacivirus/efeitos dos fármacos
Hepacivirus/genética
Transcrição Reversa
[Mh] Termos MeSH secundário: Antivirais/farmacologia
Antivirais/uso terapêutico
DNA Complementar
Genoma Viral/efeitos dos fármacos
Genótipo
Hepacivirus/isolamento & purificação
Hepatite C Crônica/sangue
Hepatite C Crônica/diagnóstico
Hepatite C Crônica/tratamento farmacológico
Seres Humanos
Reação em Cadeia da Polimerase
RNA Viral/sangue
RNA Viral/genética
Sensibilidade e Especificidade
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Antiviral Agents); 0 (DNA, Complementary); 0 (RNA, Viral)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180311
[Lr] Data última revisão:
180311
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170503
[St] Status:MEDLINE


  2 / 21477 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:29408624
[Au] Autor:Wang X; Li W; Xu X; Wang W; He K; Fan H
[Ad] Endereço:Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Key Laboratory of Veterinary Biological Engineering and Technology, Ministry of Agriculture, National Center for Engineering Research of Veterinary Bio-products, Nanjing 210014, China; College of Veterinary Medicine, Nanjing
[Ti] Título:Phylogenetic analysis of two goat-origin PCV2 isolates in China.
[So] Source:Gene;651:57-61, 2018 Apr 20.
[Is] ISSN:1879-0038
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:Complete genome characterization of non-porcine origin Porcine circovirus type 2 (PCV2) was first described in 2014 in China. In the present study, we first identified PCV2 nucleotides in goat samples and the prevalence of PCV2 in goat was 6.15%. However, only two new strains, Goat2014-4 and Goat2014-5, could be completely sequenced. The genome of the strain Goat2014-4, which collected from the goat infected with PPRV, contains 1766 nt; strain Goat2014-5, which originated from a healthy goat, is comprised of 1767 nt. The results showed that they shared the highest nucleotide identity with BDH and the lowest similarity with DK1980PMWSfree strain and they belonged only to genotype PCV2d. Meanwhile, they shared higher homology with porcine-origin PCV2 strains than others. Moreover, a detailed analysis of the capsid amino acid sequences revealed that there were distinct differences for goat2014-4 (708 bp) and goat2014-5 (705 bp); strain Goat2014-4 showed an elongation of two amino acids, and strains Goat2014-5 showed an elongation of one amino acid compared with other reference strains. This is the first report of the genetic analysis of goat-origin PCV2 isolates. It also provides an additional supported evidence for cross-species transmission of PCV2.
[Mh] Termos MeSH primário: Infecções por Circoviridae/veterinária
Circovirus/classificação
Circovirus/isolamento & purificação
Doenças das Cabras/virologia
[Mh] Termos MeSH secundário: Animais
Proteínas do Capsídeo/genética
China
Infecções por Circoviridae/virologia
Frequência do Gene
Genoma Viral
Cabras
Filogenia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Capsid Proteins)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180207
[St] Status:MEDLINE


  3 / 21477 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:28458032
[Au] Autor:Khan A; Al Balwi M; AlAyyar L; AlAbdulkareem I; Albekairy A; Aljumah A
[Ad] Endereço:Department of Medical Genomics Research, King Abdullah International Medical Research Center, Ministry of National Guard Health Affairs, Riyadh 11426, Saudi Arabia.
[Ti] Título:Tracing the epidemic history of hepatitis C virus genotypes in Saudi Arabia.
[So] Source:Infect Genet Evol;52:82-88, 2017 Aug.
[Is] ISSN:1567-7257
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:HCV genotype 4 is highly prevalent in many Middle Eastern countries, yet little is known about the genotype's epidemic history at the subtype-level in this region. To address the dearth of data from Saudi Arabia (SA) we genotyped 230 HCV isolates in the core/E- and NS5B-region and analyzed using Bayesian phylogenetic approaches. HCV genotype 4 (HCV/4) was positive in 61.7% (142/230) of isolates belonging to 7 different subtypes with the predominance of 4d (73/142; 51.4%) followed by 4a (51/142; 35.9%). Phylogenetic analysis also revealed a distinct epidemiological cluster of HCV/4d for Saudi Arabia. HCV/1 appeared as the second most prevalent genotype positive in 31.3% (72/230) of isolates with the predominance of 1b (53/72; 73.6%) followed by 1a (16/72; 22.2%), and 1g (3/72; 4.1%). A small proportion of isolates belonged to HCV/3a (12/230; 5.2%), and HCV/2a (4/230; 1.7%). We estimate that the genotype 4 common ancestor existed around 1935 (1850-1985). Genotype 4 originated plausibly in Central Africa and multiple subtypes disseminated across African borders since ~1970, including subtype 4d which dominates current HCV infections in Saudi Arabia. The Bayesian skyline plot (BSP) analysis showed that genotype 4d entered the Saudi population in 1900. The effective number of HCV infections grew gradually until the second half of the 1950s and more rapidly until the early-80s through the use of imported blood units and blood products. Subsequently, the rate of HCV infection in the Saudi Arabian population was stabilized through effective screening of blood and infection control measures.
[Mh] Termos MeSH primário: Hepacivirus/classificação
Hepatite C/virologia
Análise de Sequência de RNA/métodos
[Mh] Termos MeSH secundário: Adolescente
Adulto
Idoso
Idoso de 80 Anos ou mais
Teorema de Bayes
Criança
Pré-Escolar
Feminino
Genoma Viral
Genótipo
Hepacivirus/genética
Hepatite C/epidemiologia
Seres Humanos
Masculino
Meia-Idade
Filogenia
Arábia Saudita/epidemiologia
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170502
[St] Status:MEDLINE


  4 / 21477 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:28456663
[Au] Autor:Singh S; Anupriya MG; Sreekumar E
[Ad] Endereço:Molecular Virology Laboratory, Rajiv Gandhi Centre for Biotechnology (RGCB), Thycaud P.O., Thiruvananthapuram 695014, Kerala, India.
[Ti] Título:Comparative whole genome analysis of dengue virus serotype-2 strains differing in trans-endothelial cell leakage induction in vitro.
[So] Source:Infect Genet Evol;52:34-43, 2017 Aug.
[Is] ISSN:1567-7257
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:The role of genetic differences among dengue virus (DENV) in causing increased microvascular permeability is less explored. In the present study, we compared two closely related DENV serotype-2 strains of Cosmopolitan genotype for their in vitro infectivity phenotype and ability to induce trans-endothelial leakage. We found that these laboratory strains differed significantly in infecting human microvascular endothelial cells (HMEC-1) and hepatocytes (Huh7), two major target cells of DENV in in vivo infections. There was a reciprocal correlation in infectivity and vascular leakage induced by these strains, with the less infective strain inducing more trans-endothelial cell leakage in HMEC-1 monolayer upon infection. The cells infected with the strain capable of inducing more permeability were found to secrete more Non-Structural protein (sNS1) into the culture supernatant. A whole genome analysis revealed 37 predicted amino acid changes and changes in the secondary structure of 3' non-translated region between the strains. But none of these changes involved the signal sequence coded by the C-terminal of the Envelope protein and the two glycosylation sites within the NS1 protein critical for its secretion, and the N-terminal NS2A sequence important for surface targeting of NS1. The strain that secreted lower levels of NS1 and caused less leakage had two mutations within the NS1 protein coding region, F103S and T146I that significantly changed amino acid properties. A comparison of the sequences of the two strains with published sequences of various DENV strains known to cause clinically severe dengue identified a number of amino acid changes which could be implicated as possible key genetic differences. Our data supports the earlier observations that the vascular leakage induction potential of DENV strains is linked to the sNS1 levels. The results also indicate that viral genetic determinants, especially the mutations within the NS1 coding region, could affect this critical phenotype of DENV strains.
[Mh] Termos MeSH primário: Vírus da Dengue/fisiologia
Células Endoteliais/virologia
Hepatócitos/virologia
Proteínas não Estruturais Virais/genética
[Mh] Termos MeSH secundário: Regiões 3' não Traduzidas
Animais
Permeabilidade Capilar
Linhagem Celular
Vírus da Dengue/genética
Células Endoteliais/citologia
Variação Genética
Genoma Viral
Hepatócitos/citologia
Seres Humanos
Estrutura Secundária de Proteína
Análise de Sequência de RNA
Proteínas não Estruturais Virais/química
Proteínas não Estruturais Virais/secreção
Replicação Viral/fisiologia
[Pt] Tipo de publicação:COMPARATIVE STUDY; JOURNAL ARTICLE
[Nm] Nome de substância:
0 (3' Untranslated Regions); 0 (NS1 protein, Dengue virus type 2); 0 (Viral Nonstructural Proteins)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170501
[St] Status:MEDLINE


  5 / 21477 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:28450084
[Au] Autor:Bodnar L; Lorusso E; Di Martino B; Catella C; Lanave G; Elia G; Bányai K; Buonavoglia C; Martella V
[Ad] Endereço:University Aldo Moro of Bari, Valenzano, Italy.
[Ti] Título:Identification of a novel canine norovirus.
[So] Source:Infect Genet Evol;52:75-81, 2017 Aug.
[Is] ISSN:1567-7257
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:By screening a collection of fecal samples from young dogs from different European countries, noroviruses (NoVs) were found in 13/294 (4.4%) animals with signs of enteritis whilst they were not detected in healthy dogs (0/42). An informative portion of the genome (3.4kb at the 3' end) was generated for four NoV strains. In the capsid protein VP1 region, strains 63.15/2015/ITA and FD53/2007/ITA were genetically related to the canine GVI.2 strain C33/Viseu/2007/PRT (97.4-98.6% nt and 90.3-98.6% aa). Strain FD210/2007/ITA displayed the highest identity to the GVI.1 canine strain Bari/91/2007/ITA (88.0% nt and 95.0% aa). Strain 5010/2009/ITA displayed only 66.6-67.6% nt and 75.5-81.6% aa identities to the GVI.1 canine strains FD210/2007/ITA and Bari/91/2007/ITA and the GVI feline strain M49-1/2012/JPN. Identity to the other canine/feline NoVs strains in the VP1 was lower than 67.6% nt and 62.7% aa. Based on the full-length VP1 amino acid sequence and the criteria proposed for distinction of NoV genotypes, the canine NoV 5010/2009/ITA could represent the prototype of a third GVI genotype, thus providing further evidence for the genetic heterogeneity of NoVs in carnivores.
[Mh] Termos MeSH primário: Infecções por Caliciviridae/veterinária
Doenças do Cão/virologia
Gastroenterite/veterinária
Norovirus/classificação
[Mh] Termos MeSH secundário: Animais
Infecções por Caliciviridae/diagnóstico
Infecções por Caliciviridae/epidemiologia
Doenças do Cão/epidemiologia
Cães
Europa (Continente)/epidemiologia
Evolução Molecular
Fezes/virologia
Gastroenterite/virologia
Genoma Viral
Norovirus/genética
Norovirus/isolamento & purificação
Filogenia
Análise de Sequência de RNA
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170429
[St] Status:MEDLINE


  6 / 21477 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:29458535
[Au] Autor:Shahin K; Bouzari M; Wang R
[Ad] Endereço:1​Department of Biology, Faculty of Sciences, University of Isfahan, Hezar Jereeb Street, 81746-73441, Isfahan, Iran.
[Ti] Título:Isolation, characterization and genomic analysis of a novel lytic bacteriophage vB_SsoS-ISF002 infecting Shigella sonnei and Shigella flexneri.
[So] Source:J Med Microbiol;67(3):376-386, 2018 Mar.
[Is] ISSN:1473-5644
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:PURPOSE: Shigellosis is one of the most important food-borne and water-borne diseases worldwide. Although antibiotics are considered as efficient agents for shigellosis treatment, improper use of these has led to the emergence of antibiotic-resistant Shigella spp. Therefore, finding a new strategy as alternative treatment seems necessary. METHODOLOGY: Different samples from a wastewater treatment plant were used to isolate Shigella spp. specific phages. Physiological properties were determined, and genomic analysis was also carried out. RESULTS: A virulent Siphoviridae bacteriophage, vB_SsoS-ISF002, was isolated from urban wastewater in Iran and showed infectivity to different isolates of both Shigella sonnei and Shigella flexneri. vB_SsoS-ISF002 was stable at different pH values and temperatures. It had a short latent period (15 min), a large burst size (76±9 p.f.u. cell ) and appropriate lytic activity especially at high MOI. Its genome (dsDNA) was 50 564 bp with 45.53 % GC content and 76 predicted open reading frames. According to comparative genomic analysis and phylogenic tree construction, vB_SsoS-ISF002 was considered as a member of the T1virus genus. CONCLUSION: These results indicated that vB_SsoS-ISF002 is a novel virulent T1virus phage and may have potential as an alternative treatment for shigellosis.
[Mh] Termos MeSH primário: Genoma Viral
Shigella flexneri/virologia
Shigella sonnei/virologia
Siphoviridae/genética
Siphoviridae/isolamento & purificação
[Mh] Termos MeSH secundário: Antibacterianos/farmacologia
Composição de Bases
DNA Viral
Disenteria Bacilar/terapia
Genômica
Seres Humanos
Terapia por Fagos
Filogenia
Análise de Sequência de DNA
Shigella flexneri/efeitos dos fármacos
Shigella sonnei/efeitos dos fármacos
Siphoviridae/classificação
Siphoviridae/fisiologia
Águas Residuais/microbiologia
Águas Residuais/virologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Anti-Bacterial Agents); 0 (DNA, Viral); 0 (Waste Water)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180308
[Lr] Data última revisão:
180308
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180221
[St] Status:MEDLINE
[do] DOI:10.1099/jmm.0.000683


  7 / 21477 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:28457675
[Au] Autor:Wichgers Schreur PJ; van Keulen L; Kant J; Kortekaas J
[Ad] Endereço:Department of Virology, Wageningen Bioveterinary Research, Lelystad, The Netherlands. Electronic address: paul.wichgersschreur@wur.nl.
[Ti] Título:Four-segmented Rift Valley fever virus-based vaccines can be applied safely in ewes during pregnancy.
[So] Source:Vaccine;35(23):3123-3128, 2017 05 25.
[Is] ISSN:1873-2518
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:Rift Valley fever virus (RVFV) causes severe and recurrent outbreaks on the African continent and the Arabian Peninsula and continues to expand its habitat. This mosquito-borne virus, belonging to the genus Phlebovirus of the family Bunyaviridae contains a tri-segmented negative-strand RNA genome. Previously, we developed four-segmented RVFV (RVFV-4s) variants by splitting the M-genome segment into two M-type segments each encoding one of the structural glycoproteins; Gn or Gc. Vaccination/challenge experiments with mice and lambs subsequently showed that RVFV-4s induces protective immunity against wild-type virus infection after a single administration. To demonstrate the unprecedented safety of RVFV-4s, we here report that the virus does not cause encephalitis after intranasal inoculation of mice. A study with pregnant ewes subsequently revealed that RVFV-4s does not cause viremia and does not cross the ovine placental barrier, as evidenced by the absence of teratogenic effects and virus in the blood and organs of the fetuses. Altogether, these results show that the RVFV-4s vaccine virus can be applied safely in pregnant ewes.
[Mh] Termos MeSH primário: Febre do Vale de Rift/prevenção & controle
Vírus da Febre do Vale do Rift/genética
Vírus da Febre do Vale do Rift/imunologia
Doenças dos Ovinos/prevenção & controle
Vacinas Virais/administração & dosagem
Vacinas Virais/efeitos adversos
[Mh] Termos MeSH secundário: Animais
Anticorpos Neutralizantes/sangue
Anticorpos Antivirais/sangue
Encefalite Viral/etiologia
Encefalite Viral/veterinária
Feminino
Genoma Viral/genética
Genoma Viral/imunologia
Camundongos
Gravidez
Febre do Vale de Rift/virologia
Vírus da Febre do Vale do Rift/química
Ovinos
Carneiro Doméstico/imunologia
Teratogênios
Vacinas Atenuadas/administração & dosagem
Vacinas Atenuadas/efeitos adversos
Vacinas Atenuadas/imunologia
Vacinas Virais/imunologia
Viremia/prevenção & controle
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Antibodies, Neutralizing); 0 (Antibodies, Viral); 0 (Teratogens); 0 (Vaccines, Attenuated); 0 (Viral Vaccines)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180308
[Lr] Data última revisão:
180308
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170502
[St] Status:MEDLINE


  8 / 21477 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:29302027
[Au] Autor:Campbell M; Watanabe T; Nakano K; Davis RR; Lyu Y; Tepper CG; Durbin-Johnson B; Fujimuro M; Izumiya Y
[Ad] Endereço:Department of Dermatology, School of Medicine, University of California Davis (UC Davis), Sacramento, CA, 95817, USA.
[Ti] Título:KSHV episomes reveal dynamic chromatin loop formation with domain-specific gene regulation.
[So] Source:Nat Commun;9(1):49, 2018 01 04.
[Is] ISSN:2041-1723
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:The three-dimensional structure of chromatin organized by genomic loops facilitates RNA polymerase II access to distal promoters. The Kaposi's sarcoma-associated herpesvirus (KSHV) lytic transcriptional program is initiated by a single viral transactivator, K-Rta. Here we report the KSHV genomic structure and its relationship with K-Rta recruitment sites using Capture Hi-C analyses. High-resolution 3D viral genomic maps identify a number of direct physical, long-range, and dynamic genomic interactions. Mutant KSHV chromosomes harboring point mutations in the K-Rta responsive elements (RE) significantly attenuate not only the directly proximate downstream gene, but also distal gene expression in a domain-specific manner. Genomic loops increase in the presence of K-Rta, while abrogation of K-Rta binding impairs the formation of inducible genomic loops, decreases the expression of genes networked through the looping, and diminishes KSHV replication. Our study demonstrates that genomic architectural dynamics plays an essential role in herpesvirus gene expression.
[Mh] Termos MeSH primário: Regulação Viral da Expressão Gênica
Genoma Viral/genética
Herpesvirus Humano 8/genética
Plasmídeos/genética
[Mh] Termos MeSH secundário: Animais
Linhagem Celular
Linhagem Celular Tumoral
Cercopithecus aethiops
Seres Humanos
Transativadores/genética
Células Vero
Proteínas Virais/genética
Latência Viral/genética
Replicação Viral/genética
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, N.I.H., EXTRAMURAL; RESEARCH SUPPORT, NON-U.S. GOV'T; RESEARCH SUPPORT, U.S. GOV'T, NON-P.H.S.
[Nm] Nome de substância:
0 (Trans-Activators); 0 (Viral Proteins)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180305
[Lr] Data última revisão:
180305
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180106
[St] Status:MEDLINE
[do] DOI:10.1038/s41467-017-02089-9


  9 / 21477 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:29257134
[Au] Autor:Balázs Z; Tombácz D; Szucs A; Snyder M; Boldogkoi Z
[Ad] Endereço:Department of Medical Biology, Faculty of Medicine, University of Szeged, Szeged 6720, Hungary.
[Ti] Título:Long-read sequencing of the human cytomegalovirus transcriptome with the Pacific Biosciences RSII platform.
[So] Source:Sci Data;4:170194, 2017 12 19.
[Is] ISSN:2052-4463
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Long-read RNA sequencing allows for the precise characterization of full-length transcripts, which makes it an indispensable tool in transcriptomics. The human cytomegalovirus (HCMV) genome has been first sequenced in 1989 and although short-read sequencing studies have uncovered much of the complexity of its transcriptome, only few of its transcripts have been fully annotated. We hereby present a long-read RNA sequencing dataset of HCMV infected human lung fibroblast cells sequenced by the Pacific Biosciences RSII platform. Seven SMRT cells were sequenced using oligo(dT) primers to reverse transcribe poly(A)-selected RNA molecules and one library was prepared using random primers for the reverse transcription of the rRNA-depleted sample. Our dataset contains 122,636 human and 33,086 viral (HMCV strain Towne) reads. The described data include raw and processed sequencing files, and combined with other datasets, they can be used to validate transcriptome analysis tools, to compare library preparation methods, to test base calling algorithms or to identify genetic variants.
[Mh] Termos MeSH primário: Citomegalovirus/genética
Transcriptoma
[Mh] Termos MeSH secundário: Perfilação da Expressão Gênica
Genoma Viral
Análise de Sequência de RNA
[Pt] Tipo de publicação:DATASET; JOURNAL ARTICLE; RESEARCH SUPPORT, N.I.H., EXTRAMURAL; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180306
[Lr] Data última revisão:
180306
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171220
[St] Status:MEDLINE
[do] DOI:10.1038/sdata.2017.194


  10 / 21477 MEDLINE  
              first record previous record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:29385205
[Au] Autor:Di Paola N; Freire CCM; Zanotto PMA
[Ad] Endereço:Laboratory of Molecular Evolution and Bioinformatics, Department of Microbiology, Biomedical Sciences Institute, University of Sao Paulo, Sao Paulo, Brazil.
[Ti] Título:Does adaptation to vertebrate codon usage relate to flavivirus emergence potential?
[So] Source:PLoS One;13(1):e0191652, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Codon adaptation index (CAI) is a measure of synonymous codon usage biases given a usage reference. Through mutation, selection, and drift, viruses can optimize their replication efficiency and produce more offspring, which could increase the chance of secondary transmission. To evaluate how higher CAI towards the host has been associated with higher viral titers, we explored temporal trends of several historic and extensively sequenced zoonotic flaviviruses and relationships within the genus itself. To showcase evolutionary and epidemiological relationships associated with silent, adaptive synonymous changes of viruses, we used codon usage tables from human housekeeping and antiviral immune genes, as well as tables from arthropod vectors and vertebrate species involved in the flavivirus maintenance cycle. We argue that temporal trends of CAI changes could lead to a better understanding of zoonotic emergences, evolutionary dynamics, and host adaptation. CAI appears to help illustrate historically relevant trends of well-characterized viruses, in different viral species and genetic diversity within a single species. CAI can be a useful tool together with in vivo and in vitro kinetics, phylodynamics, and additional functional genomics studies to better understand species trafficking and viral emergence in a new host.
[Mh] Termos MeSH primário: Códon/genética
Flavivirus/genética
Flavivirus/patogenicidade
[Mh] Termos MeSH secundário: Adaptação Fisiológica
Aedes/genética
Aedes/virologia
Animais
Culex/genética
Culex/virologia
Vírus da Dengue/genética
Vírus da Dengue/patogenicidade
Vírus da Dengue/fisiologia
Evolução Molecular
Flavivirus/fisiologia
Genes Essenciais
Genoma Viral
Interações Hospedeiro-Patógeno/genética
Seres Humanos
Mosquitos Vetores/genética
Mosquitos Vetores/virologia
Filogenia
Vírus do Mosaico do Tabaco/genética
Vírus do Mosaico do Tabaco/patogenicidade
Vírus do Mosaico do Tabaco/fisiologia
Vertebrados/genética
Vertebrados/virologia
Vírus do Nilo Ocidental/genética
Vírus do Nilo Ocidental/patogenicidade
Vírus do Nilo Ocidental/fisiologia
Vírus da Febre Amarela/genética
Vírus da Febre Amarela/patogenicidade
Vírus da Febre Amarela/fisiologia
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Codon)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180302
[Lr] Data última revisão:
180302
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180201
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0191652



página 1 de 2148 ir para página                         
   


Refinar a pesquisa
  Base de dados : MEDLINE Formulário avançado   

    Pesquisar no campo  
1  
2
3
 
           



Search engine: iAH v2.6 powered by WWWISIS

BIREME/OPAS/OMS - Centro Latino-Americano e do Caribe de Informação em Ciências da Saúde