Rna Subcellular Localization
Mostrando 1-12 de 202 artigos, teses e dissertações.
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1. Biogênese, estabilidade e localização sub-celular de RNAs não-codificadores longos expressos em regiões intrônicas do genoma humano / Biogenesis, stability and sub-cellular localization of long non-coding RNAs expressed in intronic regions of the human genome
Trabalhos recentes indicam que a maior parte do transcriptoma de células de mamíferos é composto por RNAs não-codificadores de proteínas (ncRNAs). Nosso grupo tem identificado e caracterizado ncRNAs longos (>200 nt), sem splicing, expressos em regiões intrônicas de genes codificadores de proteína. Contudo, a biogênese, processamento e localização
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/03/2012
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2. Distinct subcellular localization of tRNA-derived fragments in the infective metacyclic forms of Trypanosoma cruzi
Small non-coding RNAs derived from transfer RNAs have been identified as a broadly conserved prokaryotic and eukaryotic response to stress. Their presence coincides with changes in developmental state associated with gene expression regulation. In the epimastigote form of Trypanosoma cruzi, tRNA fragments localize to posterior cytoplasmic granules. In the in
Mem. Inst. Oswaldo Cruz. Publicado em: 2012-09
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3. Characterization of the role of glutamyl-tRNA synthetase in the protein subcellular localization / Caracterização do papel da glutamil-tRNA sintetase na localização subcelular de proteínas
Nos organismos eucariotos, aproximadamente 50% das proteínas traduzidas no citoplasma são transportadas para as organelas, onde irão desempenhar suas funções. Com isso, surgiu um intricado sistema de transporte intracelular de proteínas. Nas plantas, a presença de uma segunda organela endossimbionte, o plastídio, tornou este sistema mais complexo e g
Publicado em: 2010
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4. Estudos funcionais e estruturais da proteina humana hnRNP Q/NSAP1 / Funcional and structural studies of human protein hnRNPQ
The members of the hnRNPs family (heterogenous nuclear ribonuclein proteins) play important roles in gene expression control and mRNAs metabolism. The proteins hnRNPD (AUF1) and hnRNPQ (NSAP1) were the main targets of this study. AUF1 has two RNA recognition motifs (RRM) and participates in the process of destabilization of a class of mRNAs that contain AU-r
Publicado em: 2008
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5. UtilizaÃÃo de abordagens moleculares in vivo no estudo de homÃlogos do fator de iniciaÃÃo da traduÃÃo 4G (eIF4G) de tripanosomatÃdeos
In higher eukaryotes, protein synthesis starts with the binding of the translation initiation complex eIF4F to the mRNA. This complex (formed by the eIF4A, eIF4E and eIF4G subunits) allows the recognition of the mRNA by the 40S ribosomal subunit and the initiation of translation. The eIF4G subunit is a large scaffolding protein that is responsible for the co
Publicado em: 2007
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6. FMNL1 : caracterização de um novo gene humano relacionado com a familia das forminas
Formins are proteins that are involved in processes such as morphogenesis, embryonic differentiation, cytokinesis, cell polarity and survival. The formins are multidomain proteins that are conserved from plants to fungi and vertebrates. A search of the ORESTES database, generated from the Human Cancer Genome Project, identified 2 ESTs that were similar to th
Publicado em: 2006
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7. Identification of genes coding for serine/threonine phosphatases in Dictyostelium discoideum and functional characterization of type 4 protein phosphatase (PP4) / Identificação de genes codificadores de serina/treonina fosfatases em Dictyostelium discoideum e caracterização funcional da proteína fosfatase do tipo 4 (PP4)
The serine/threonine protein phosphatases (PPs) are enzymes responsible for dephosphorylation of phosphoserine and/or phosphothreonine residues and are divided in two gene families designated as PPP and PPM. The PPP family is divided in five subfamilies, which comprise type 1 (PP1), 2A (PP2A), 2B (PP2B), 5 (PP5) and 7 (PP7) phosphatases. This subdivision is
Publicado em: 2003
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8. Caracterização da localização subcelular da proteína THI1 de Arabidopsis thaliana. / Characterization of the subcellular localization of arabidopsis thaliana thip.
Arabidopsis thaliana thi1 gene product is probably involved in both thiamine biosynthesis as well as protection of organellar DNA from damage. Studies of thiamine biosynthesis in plants suggest a plastid location for the pathway, which is in agreement with the predicted THI1 N-terminal chloroplastic transit peptide (TP). On the other hand, thiamine is synthe
Publicado em: 2002
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9. Subcellular localization of an intermediate filament protein and its mRNA in glial cells.
Eucaryotic mRNAs are generally localized in the cell body, where most protein synthesis occurs. We have found that mRNAs encoding the glial intermediate filament protein are spatially distributed in the glial cell cytoplasm close to the location of the glial filaments. Whereas the glial filament protein mRNA was located predominantly in the distal process, a
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10. An3 mRNA encodes an RNA helicase that colocalizes with nucleoli in Xenopus oocytes in a stage-specific manner.
An3 is a maternal mRNA localized to the animal hemisphere of oocytes and early embryos. We have analyzed the enzymatic activity and the subcellular localization of the protein encoded by An3 mRNA during Xenopus oogenesis. Antibodies raised using recombinant full-length and truncated An3 protein recognized a single protein in Xenopus and single proteins from
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11. A method to identify cDNAs based on localization of green fluorescent protein fusion products
We previously established a high-efficiency, retrovirus-mediated expression cloning method. Using this system, we now have developed an expression cloning method (FL-REX; fluorescence localization-based retrovirus-mediated expression cloning) in which cDNAs can be isolated based on the subcellular localization of their protein products. Complementary DNAs ge
The National Academy of Sciences.
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12. Regulation of SR protein localization during development
Ser-Arg-rich (SR) proteins play numerous roles in spliceosome assembly and the regulation of splice-site selection. Whereas considerable attention has focused on the mechanistic details of SR protein activities, little is known concerning how these splicing regulators are controlled by the cell. Here we examined the subcellular localization of precursor mRNA
The National Academy of Sciences.