Interphase Nucleus
Mostrando 1-12 de 115 artigos, teses e dissertações.
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1. Peripheral position of CCND1 and HER-2/neu oncogenes within chromosome territories in esophageal and gastric cancers non-related to amplification and overexpression
Interphase chromosomes have been shown to occupy discrete regions of the nucleus denominated chromosome territories (CTs), their active genes being preferentially positioned on the surfaces of these CTs, where they are accessible to transcriptional machinery. By means of FISH (Fluorescence in situ Hybridization), we analyzed the CCND1 and HER-2/neu gene posi
Genetics and Molecular Biology. Publicado em: 13/03/2009
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2. Estrutura de nÃcleos interfÃsicos e distribuiÃÃo da heterocromatina em Pennisetum sp. / Structure of interphasic nuclei and distribution of heterochromatin of Pennisetum sp.
Os bandeamentos cromossÃmicos tÃm sido utilizados na caracterizaÃÃo dos genomas e interaÃÃes das espÃcies. Eles sÃo de grande importÃncia para os programas de melhoramento de plantas, visto que auxiliam na identificaÃÃo de raÃas e de variedades presentes nos seus bancos de germoplasmas. O presente trabalho foi realizado com o objetivo de analisar
Publicado em: 2008
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3. Cytogenetic and molecular characterization of three acesses of Lippia alba (Mill.) N.E. Br. (Verbenaceae). / CaracterizaÃÃo citogenÃtica e molecular de trÃs acessos de Lippia alba (Mill.) N.E.Br (Verbenaceae)
In Lippia alba (Mill.) NE Br. (Verbenaceae), commonly known as cidreira, chemotypes are observed and designated as La1-citral, La2-carvone and La3-linalool. They present morphological variation and different pharmacological activities. Morphologic, anatomical and phytochemical studies on these chemotypes has shown that, even under identical environmental con
Publicado em: 2004
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4. Architectural organization in the interphase nucleus of the protozoan Trypanosoma brucei: location of telomeres and mini-chromosomes.
We studied the spatial organization of chromatin in the interphase G1, S and G2 nucleus of the protozoan Trypanosoma brucei, applying in situ hybridization with conventional fluorescence and confocal scanning optical microscopy. The majority of the trypanosome telomere GGGTTA repeats from different chromosomes were found clustered together, either extending
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5. c-Myc induces chromosomal rearrangements through telomere and chromosome remodeling in the interphase nucleus
In previous work, we showed that telomeres of normal cells are organized within the 3D space of the interphase nucleus in a nonoverlapping and cell cycle-dependent manner. This order is distorted in tumor cell nuclei where telomeres are found in close association forming aggregates of various numbers and sizes. Here we show that c-Myc overexpression induces
National Academy of Sciences.
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6. A widely distributed nuclear protein immunologically related to the microtubule-associated protein MAP1 is associated with the mitotic spindle.
A 280-kDa protein (p280) confined to the nucleus of interphase cells becomes associated with the mitotic spindle during cell division. p280 is immunologically related to the microtubule-associated protein MAP1, as shown by cross-reactivity with monoclonal (8D12) and polyclonal antibodies raised against MAP1. However, p280 is distinct from MAP1 as judged by i
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7. Basal body-associated DNA: in situ studies in Chlamydomonas reinhardtii.
We have explored the localization of the uni chromosome (LG XIX) of Chlamydomonas reinhardtii using the technique of in situ hybridization. Using standardized methods of cell fixation together with large chromosome-specific probes we have studied the position of uni DNA sequences in metaphase and interphase cells. We find that in dividing cells uni probes id
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8. Characterization of RNAs That Do and Do Not Migrate between Cytoplasm and Nucleus*
We have investigated the nature of the RNA that moves from cytoplasm to nucleus against a concentration gradient in Amoeba proteus. We find that: In the presence of actinomycin D an unlabeled nucleus grafted into a [3H]RNA cytoplasm acquires RNAs with sedimentation constants 30 S, 19 S, and 4-6S that are not related to the general population of cytoplasmic r
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9. The Mitotic Cycle. The Cytoplasm and Nucleus during Interphase and Mitosis
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10. Induction of chromatin condensation by nuclear expression of a novel arginine-rich cationic protein genetically engineered from the enhanced green fluorescent protein
In the interphase nuclei of cultured cells, chromatin is compacted and organized in higher-order structures through the condensation and decondensation processes. Chromosomes in the interphase nucleus are known to occupy distinct territories. The chromosome territory-interchromatin compartment model premises that the interchromatin compartment is separated f
Springer Netherlands.
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11. Orientation of Mitosis of Fibroblasts Is Determined in the Interphase
Time-lapse films of the cultures of mouse L fibroblasts have been analyzed to find out the angles between the direction of the big axis of interphase nucleus before mitosis and the direction of the mitotic furrow in the same cell. In 41 out of 51 mitoses this angle has been found to be more than 60°. Thus, the orientation of mitotic furrows depends on the i
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12. Analysis of mid1p, a Protein Required for Placement of the Cell Division Site, Reveals a Link between the Nucleus and the Cell Surface in Fission Yeast
mid1 is required for the proper placement of the contractile actin ring for cytokinesis at a medial site overlying the nucleus. Here we find that mid1 protein (mid1p) shuttles between the nucleus and a cortical medial broad band during interphase and early mitosis. The position of this broad band, which overlies the nucleus, is linked to nuclear positio
The American Society for Cell Biology.