Chromo
Mostrando 1-12 de 34 artigos, teses e dissertações.
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1. Validation of QF-PCR for prenatal diagnoses in a Brazilian population
OBJECTIVES: Quantitative fluorescence polymerase chain reaction (QF-PCR) is a rapid and reliable method for screening aneuploidies, but in Brazil, it is not used in public services. We investigated the accuracy of QF-PCR for the prenatal recognition of common aneuploidies and compared these results with cytogenetic results in our laboratory. METHOD: A Chro
Clinics. Publicado em: 2017-07
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2. Genotoxic potential of the latex from cotton-leaf physicnut (Jatropha gossypiifolia L.)
Jatropha gossypiifolia L. (Euphorbiaceae), popularly known as cotton-leaf physicnut, is a milky shrub notable for its medicinal properties. The present study aimed to evaluate the toxic, cytotoxic and genotoxic effects of the latex of J. gossypiifolia, using Allium cepa L. as test system. Seeds of A. cepa were exposed to five concentrations of the latex (1.2
Genet. Mol. Biol.. Publicado em: 2015-03
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3. The chromo-weibel instability
I discuss the physics of non-Abelian plasmas which are locally anisotropic in momentum space. Such momentum-space anisotropies are generated by the rapid longitudinal expansion of the matter created in the first 1 fm/c of an ultrarelativistic heavy ion collision. In contrast to locally isotropic plasmas anisotropic plasmas have a spectrum of soft unstable mo
Braz. J. Phys.. Publicado em: 2007-06
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4. O genero Eupatorium s.l. (Compositae - Eupatorieae) no Estado de São Paulo - Brasil
This thesis eonsists of a taxonomic study of the speeies of Eupatorium s.l. that oceur in the State of São Paulo, Brazil. Using both micro- and macro-eharaeters, studied with both seanning eleetron microscopy (MEV) and light microscopy (ML), a total of 90 species, from 26 segregate genera of Eupatorium s.l., were recognized: AustrocrÍtonia RM. King &H. Rob
Publicado em: 2001
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5. Utilização de microemulsões como agentes modificadores de superfícies para remoção de íons metálicos
The heavy metals are used in many industrial processes and when discharged to the environment can cause harmful effects to human, plants and animals. The adsorption technology has been used as an effective methodology to remove metallic ions. The search for new adsorbents motivated the development of this research, accomplished with the purpose of removing C
Publicado em: 2001
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6. The chromo shadow domain, a second chromo domain in heterochromatin-binding protein 1, HP1.
The chromo domain was originally identified as a protein sequence motif common to the Drosophila chromatin proteins, Polycomb (Pc) and heterochromatin protein 1 [HP1; Paro and Hogness (1991) Proc. Natl. Acad. Sci. USA, 88, 263-267; Paro (1990) Trends Genet., 6, 416-421]. Here we describe a second chromo domain-like motif in HP1. Subsequent refined searches i
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7. Frequency and clinical associations of anti-chromo antibodies in connective tissue disease.
OBJECTIVES--To assess the frequency and clinical associations of anti-chromo antibodies in connective tissue disease and to study their relationship to anti-centromere autoreactivity. METHODS--Anti-chromo and anti-centromere antibodies (ACA) were measured by immunoblotting in 50 patients with systemic sclerosis (SSc) and 58 connective tissue disease controls
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8. The structure of mouse HP1 suggests a unique mode of single peptide recognition by the shadow chromo domain dimer
The heterochromatin protein 1 (HP1) family of proteins is involved in gene silencing via the formation of heterochromatic structures. They are composed of two related domains: an N–terminal chromo domain and a C–terminal shadow chromo domain. Present results suggest that chromo domains may function as protein interaction motifs, bringing together differe
Oxford University Press.
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9. The chromo superfamily: new members, duplication of the chromo domain and possible role in delivering transcription regulators to chromatin.
Using computer methods for detecting conserved amino acid sequence motifs, we show that the chromatin organization modifier (chromo) domain that has been previously identified in several proteins involved in transcription down-regulation is present in a much larger group of (putative) chromatin-binding proteins, some of which are positive rather than negativ
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10. Functional analysis of the chromo domain of HP1.
Heterochromatin protein 1 (HP1) is a non-histone chromosomal protein in Drosophila with dosage-dependent effects on heterochromatin-mediated gene silencing. An evolutionarily conserved amino acid sequence in the N-terminal half of HP1 (the 'chromo domain') shares > 60% sequence identity with a motif found in the Polycomb protein, a silencer of homeotic genes
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11. A sequence motif found in a Drosophila heterochromatin protein is conserved in animals and plants.
Modifiers of position-effect-variegation in Drosophila encode proteins that are thought to modify chromatin, rendering it heritably changed in its expressibility. In an attempt to identify similar modifier genes in other species we have utilized a known sequence homology, termed chromo box, between a suppressor of position-effect-variegation, Heterochromatin
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12. The Hinge and Chromo Shadow Domain Impart Distinct Targeting of HP1-Like Proteins
Drosophila heterochromatin-associated protein 1 (HP1) is an abundant component of heterochromatin, a highly condensed compartment of the nucleus that comprises a major fraction of complex genomes. Some organisms have been shown to harbor multiple HP1-like proteins, each exhibiting spatially distinct localization patterns within interphase nuclei. We have cha
American Society for Microbiology.