نتایج جستجو برای: 18s rrna gene
تعداد نتایج: 1155066 فیلتر نتایج به سال:
Significant intraindividual variation in the sequence of the 18S rRNA gene is unusual in animal genomes. In a previous study, multiple 18S rRNA gene sequences were observed within individuals of eight species of sturgeon from North America but not in the North American paddlefish, Polyodon spathula, in two species of Polypterus (Polypterus delhezi and Polypterus senegalus), in other primitive f...
Most of the ribosomal RNA genes of the yeast Saccharomyces cerevisiae are about 9 kilobases (kb) in size and encode both the 35S rRNA (processed to produce the 25S, 18S, and 5.8S species) and 5S rRNA. These genes are arranged in a single tandem array of 100 repeats. Below, we present evidence that at the centromere-distal end of this array is a tandem arrangement of a different type of rRNA gen...
Ribosomal RNA (rRNA) genes, whose activity results in nucleolus formation, constitute an extremely important part of genome. Despite the extensive exploration into avian genomes, no complete description of avian rRNA gene primary structure has been offered so far. We publish a complete chicken rRNA gene cluster sequence here, including 5'ETS (1836 bp), 18S rRNA gene (1823 bp), ITS1 (2530 bp), 5...
Background: Cryptosporidiosis is prevalent in animals and human beings, both immuno-competent and immuno-compromised persons, worldwide. Epidemiologically, it is important to differentiate between human and animal species. The aim of this study is to define the utility of a 1055 bp fragment of 18s rRNA for differentiation of Human and Cattle Cryptosporidiosis. Material and methods: 1020 human...
Molecular Characterization of a Non–Babesia divergens Organism Causing Zoonotic Babesiosis in Europe
In Europe, most reported human cases of babesiosis have been attributed, without strong molecular evidence, to infection with the bovine parasite Babesia divergens. We investigated the first known human cases of babesiosis in Italy and Austria, which occurred in two asplenic men. The complete 18S ribosomal RNA (18S rRNA) gene was amplified from specimens of their whole blood by polymerase chain...
This study aimed to develop a multiplex-touchdown PCR method to simultaneously detect 3 species of protozoan parasites, i.e., Cryptosporidium parvum, Giardia lamblia, and Cyclospora cayetanensis, the major causes of traveler's diarrhea and are resistant to standard antimicrobial treatments. The target genes included the Cryptosporidium oocyst wall protein for C. parvum, Glutamate dehydrogenase ...
The often widespread and serious Root-Knot Nematode (RKN) disease is an important soil-borne affecting tobacco production. This study aimed to understand micro-ecological changes caused by RKN interactions between rhizosphere soil fungal communities. 18S rRNA gene sequencing was used in community of plants having disease. In June 2018, a paired comparison performed structures healthy those with...
We report that Esf1p (Ydr365cp), an essential, evolutionarily conserved nucleolar protein, is required for the biogenesis of 18S rRNA in Saccharomyces cerevisiae. Depletion of Esf1p resulted in delayed processing of 35S precursor and a striking loss of 18S rRNA. Esf1p physically associated with ribosomal proteins and proteins involved in 18S rRNA biogenesis. Consistent with its role in 18S rRNA...
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