High Mobility Group Proteins
Mostrando 1-12 de 179 artigos, teses e dissertações.
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1. Caracterização molecular da interação entre proteínas de citros envolvidas no controle da expressão gênica e a proteína efetora bacteriana PthA, indutorra do cancro cítrico / Molecular characterization of the interaction between citrus proteins involved in gene transcription control and the effector protein PthA, a citrus canker disease inductor
O cancro cítrico, causado pela bactéria Xanthomonas axonopodis pv. citri (Xac), é uma doença que afeta a maioria das espécies do gênero Citrus, ocorrendo praticamente em todos os continentes, e se destaca como uma das ameaças à citricultura brasileira. O mecanismo molecular pelo qual Xac causa o cancro não é inteiramente conhecido, entretanto, sabe
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/05/2010
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2. Retinol-induced changes in the phosphorylation levels of histones and high mobility group proteins from sertoli cells
Chromatin proteins play a role in the organization and functions of DNA. Covalent modifications of nuclear proteins modulate their interactions with DNA sequences and are probably one of the multiple factors involved in the process of switch on/off transcriptionally active regions of DNA. Histones and high mobility group proteins (HMG) are subject to many co
Publicado em: 2010
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3. DETECTION OF PROTEINS INVOLVED IN CHROMATIN REMODELING OF BOVINE EMBRYOS PRODUCED FROM OOCYTES DERIVED FROM SMALL AND LARGE ANTRAL FOLLICLES / DETECÇÃO DE PROTEÍNAS ENVOLVIDAS NO REMODELAMENTO DA CROMATINA DE EMBRIÕES BOVINOS PRODUZIDOS IN VITRO A PARTIR DE OÓCITOS ORIUNDOS DE FOLÍCULOS ANTRAIS PEQUENOS E GRANDES
It has been demonstrated that oocytes of several species acquire the capacity to complete meiotic maturation and support early embryonic development during the final stages of follicular growth. Aiming to investigate molecular differences between bovine embryos produced from oocytes derived from small (1 to 2-mm) and large (4 to 8-mm) follicles, two experime
Publicado em: 2006
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4. Retinol-induced changes in the phosphorylation levels of histones and high mobility group proteins from Sertoli cells
Chromatin proteins play a role in the organization and functions of DNA. Covalent modifications of nuclear proteins modulate their interactions with DNA sequences and are probably one of the multiple factors involved in the process of switch on/off transcriptionally active regions of DNA. Histones and high mobility group proteins (HMG) are subject to many co
Brazilian Journal of Medical and Biological Research. Publicado em: 2000-03
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5. High mobility group I(Y)-like DNA-binding domains on a bacterial transcription factor.
The bacterium Myxococcus xanthus responds to blue light by producing carotenoids. It also responds to starvation conditions by developing fruiting bodies, where the cells differentiate into myxospores. Each response entails the transcriptional activation of a separate set of genes. However, a single gene, carD, is required for the activation of both light- a
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6. The high mobility group proteins HMG 14 and 17, do not prevent the formation of chromatin higher order structure.
The high mobility group proteins, HMG 14 and 17, have been associated with the chromatin of active genes (refs 1-8), although how they function is not known. We use sedimentation and electric dichroism to investigate the effect of HMG 14 and 17 on the condensation of chicken erythrocyte chromatin into higher order structure. We find no evidence that excess H
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7. Regulation of DNA-Dependent Activities by the Functional Motifs of the High-Mobility-Group Chromosomal Proteins
American Society for Microbiology.
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8. Studies on the association of the high mobility group non-histone chromatin proteins with isolated nucleosomes.
Nucleosomes have been isolated from rabbit thymus by sucrose gradient centrifugation, and their high mobility group (HMG) protein content analysed by electrophoresis on polyacrylamide gels. The results suggest that proteins HMG 14 and HMG 17 are associated with the core particle of the nucleosome, and that there are two or more sub-populations of both HMG 1
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9. The release of high mobility group protein H6 and protamine gene sequences upon selective DNase I degradation of trout testis chromatin.
Limited digestion of trout testis nuclei with DNase I selectively degrades the protamine genes. Concomitant with the degradation of transcribed DNA sequences a series of chromosomal proteins are released; among these, the major species corresponds to the high mobility group protein H6. The amounts of H6 released from chromatin by limited DNase I action and t
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10. Network of Dynamic Interactions between Histone H1 and High-Mobility-Group Proteins in Chromatin
Histone H1 and the high-mobility group (HMG) proteins are chromatin binding proteins that regulate gene expression by modulating the compactness of the chromatin fiber and affecting the ability of regulatory factors to access their nucleosomal targets. Histone H1 stabilizes the higher-order chromatin structure and decreases nucleosomal access, while the HMG
American Society for Microbiology.
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11. Carbohydrate modifications of the high mobility group proteins.
This paper reports the results of numerous biochemical analyses which indicate that the "high mobility group" proteins (HMGs) of mouse and bovine cells are bona fide glycoproteins and can, in addition, be modified by poly(ADP-ribose) addition in vitro. The sugars N-acetylglucosamine, mannose, galactose, glucose, fucose, and one unknown sugar (possibly xylose
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12. Subnucleosome particles containing high mobility group proteins HMG-E and HMG-G originate from transcriptionally active chromatin.
Subnucleosome particles SN2 and SN3 containing short DNA fragments and non-histone proteins of the high mobility group, HMG-G and HMG-E respectively, were purified from the chromatin preparations of mouse L cells partially digested with staphylococcal nuclease. Labeled DNAs prepared from these particles were hybridized to an excess of nuclear RNA. The bindin