نتایج جستجو برای: b1 rrna gene
تعداد نتایج: 1169232 فیلتر نتایج به سال:
* Author for correspondence and reprint requests Z. Naturforsch. 64c, 418-420 (2009); received December 15, 2008 Cell suspension culture has rapidly become an alternative source of taxol, an anticancer compound. To investigate the role of DNA methylation in the cultural course of Taxus chinensis cells, analyses of 18S rRNA gene sequences of cultured T chinensis cells and related species were co...
We review all instances in which the nuclear 5S rRNA genes of fungi, protist, nematode, and arthropod species have been reported to be linked to the tandemly repeated units of the rDNA, trans-spliced leader, and histone multigene families. The evolution of these gene arrangements is analyzed by mapping them to independently derived phylogenies. These analyses show that 5S rRNA genes have repeat...
BACKGROUND The intra- and inter-species genetic diversity of bacteria and the absence of 'reference', or the most representative, sequences of individual species present a significant challenge for sequence-based identification. The aims of this study were to determine the utility, and compare the performance of several clustering and classification algorithms to identify the species of 364 seq...
PURPOSE We studied the expression levels of cyclins B1, D1, and E1 and the implications of cyclin overexpression for patient outcomes in distinct breast cancer subtypes defined by clinical variables and transcriptional profiling. EXPERIMENTAL DESIGN The expression levels of cyclins B1, D1, and E1 were quantified in 779 breast tumors and 53 cell lines using reverse phase protein arrays and/or ...
In eukaryotes, each of the more than 100 copies of ribosomal RNA (rRNA) genes exists in either an RNA polymerase I transcribed open chromatin state or a nucleosomal, closed chromatin state. Open rRNA genes guarantee the cell's supply with structural components of the ribosome, whereas closed rRNA genes ensure genomic integrity. We report that the observed balance between open and closed rRNA ge...
B1 elements are an abundant class of short interspersed elements (SINEs) in the mouse genome and mobilize by a process known as retrotransposition. Here, we report the characterization of a mutagenic B1 insertion into exon 4 of the Atcay gene, which was previously shown to be responsible for the jittery mouse. Mutations in the human ortholog of this gene, ATCAY, are responsible for Cayman ataxi...
Abstract Hop cyst nematode, Heterodera humuli Filipjev, 1934 was found in soil samples collected from hop farms Bushy Park, Tasmania and Merriang, Victoria, Australia. Morphological molecular characteristics were consistent with those described for this species other parts of the world. Novel gene sequences ITS rRNA, 28S rRNA CO1 mtDNA generated cysts compared against H. available on NCBI GenBa...
Abstract New approaches for developing disease-resistant genetically modified organisms have included specific targets gene expression to enhance the chances pathogen control. Gene driven by phloem-derived Citrus sinensis promoters could be evaluated and compared with induced a strong constitutive promoter in same tissue, leading production of transgenic sweet oranges potentially more resistant...
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