Carmovirus
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. Identificação e caracterização molecular de isolados brasileiros de Carnation mottle virus em craveiros
Carnation mottle virus (CarMV) foi identificado em craveiros com e sem sintomas, pelo círculo de hospedeiras, teste sorológico e analise molecular da capa proteica do genoma viral. Sete amostras foram avaliadas por testes biológicos e sorológicos. Duas delas, uma proveniente de São Paulo e outra de Minas Gerais, que apresentaram os maiores valores de a
Hortic. Bras.. Publicado em: 2015-06
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2. Positive selection, molecular recombination structure and phylogenetic reconstruction of members of the family Tombusviridae: implication in virus taxonomy
A detailed study of putative recombination events and their evolution frequency in the whole genome of the currently known members of the family Tombusviridae, comprising 79 accessions retrieved from the international databases, was carried out by using the RECCO and RDP version 3.31β algorithms. The first program allowed the detection of potential recombin
Genetics and Molecular Biology. Publicado em: 16/09/2011
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3. Cap-Independent Translational Enhancement of Turnip Crinkle Virus Genomic and Subgenomic RNAs
The presence of translational control elements and cap structures has not been carefully investigated for members of the Carmovirus genus, a group of small icosahedral plant viruses with positive-sense RNA genomes. In this study, we examined both the 5′ and 3′ untranslated regions (UTRs) of the turnip crinkle carmovirus (TCV) genomic RNA (4 kb) as well a
American Society for Microbiology.
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4. Preliminary X-ray data analysis of crystalline hibiscus chlorotic ringspot virus
Hibiscus chlorotic ringspot virus is a positive-sense monopartite single-stranded RNA virus that belongs to the Carmovirus genus of the Tombusviridae family. Authentic virus harvested from infected host kenaf leaves was purified and virus crystals were grown in multiple conditions. One of the crystals diffracted to 3.2 Å resolution and allowed the collect
International Union of Crystallography.
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5. Complete Nucleotide Sequence and Genome Organization of Hibiscus Chlorotic Ringspot Virus, a New Member of the Genus Carmovirus: Evidence for the Presence and Expression of Two Novel Open Reading Frames
The complete nucleotide sequence of hibiscus chlorotic ringspot virus (HCRSV) was determined. The genomic RNA (gRNA) is 3,911 nucleotides long and has the potential to encode seven viral proteins in the order of 28 (p28), 23 (p23), 81 (p81), 8 (p8), 9 (p9), 38 (p38), and 25 (p25) kDa. Excluding two unique open reading frames (ORFs) encoding p23 and p25, the
American Society for Microbiology.
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6. The complete nucleotide sequence of the maize chlorotic mottle virus genome.
The complete nucleotide sequence of the maize chlorotic mottle virus (MCMV) genome has been determined to be 4437 nucleotides. The viral genome has four long open reading frames (ORFs) which could encode polypeptides of 31.6, 50, 8.9 and 25.1 kd. If the termination codons, for the polypeptides encoded by the 50 and 8.9 kd ORFs are suppressed, readthrough pro
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7. A novel 3′-end repair mechanism in an RNA virus
Many positive-stranded RNA viruses contain short, single-stranded 3′ ends that are vulnerable to degradation by host cellular RNases. Therefore, the existence of a 3′-end repair mechanism (analogous to cellular telomerases) must be required and/or advantageous for RNA viruses. Accordingly, we provide evidence suggesting that deletions of up to 6 nt from
The National Academy of Sciences of the USA.
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8. A Six-Nucleotide Segment within the 3′ Untranslated Region of Hibiscus Chlorotic Ringspot Virus Plays an Essential Role in Translational Enhancement
RNA plant viruses use various translational regulatory mechanisms to control their gene expression. Translational enhancement of viral mRNAs that leads to higher levels of protein synthesis from specific genes may be essential for the virus to successfully compete for cellular translational machinery. The control elements have yet to be analyzed for members
American Society for Microbiology.
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9. Mechanism of RNA Recombination in Carmo- and Tombusviruses: Evidence for Template Switching by the RNA-Dependent RNA Polymerase In Vitro†
RNA recombination occurs frequently during replication of tombusviruses and carmoviruses, which are related small plus-sense RNA viruses of plants. The most common recombinants generated by these viruses are either defective interfering (DI) RNAs or chimeric satellite RNAs, which are thought to be generated by template switching of the viral RNA-dependent RN
American Society for Microbiology.