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| Baiotto,Cléia; Sperb,Fernanda; Matte,Ursula; Silva,Cláudia Dornelles da; Sano,Renata; Coelho,Janice Carneiro; Giugliani,Roberto. |
| Infantile GM1 gangliosidosis is caused by the absence or reduction of lysosomal beta-galactosidase activity. Studies conducted in Brazil have indicated that it is one of the most frequent lysosomal storage disorders in the southern part of the country. To assess the incidence of this disorder, 390 blood donors were tested for the presence of two common mutations (1622-1627insG and R59H) in the GLB1 gene. Another group, consisting of 26 GM1 patients, and the blood donors were tested for the presence of two polymorphisms (R521C and S532G), in an attempt to elucidate whether there is a founder effect. The frequencies of the R59H and 1622-1627insG mutations among the GM1 patients studied were 19.2% and 38.5%, respectively. The frequency of polymorphism S532G... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: GM1 gangliosidosis; Beta-galactosidase; GLB1 gene; Founder effect; Linkage disequilibrium. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572011000100009 |
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| Sperb,Fernanda; Schuck,Desirée Cigaran; Rodrigues,Jaqueline Josi Samá. |
| Transposable elements are DNA sequences present in all the large phylogenetic groups, both capable of changing position within the genome and constituting a significant part of eukaryotic genomes. The mariner family of transposons is one of the few which occurs in a wide variety of taxonomic groups, including freshwater planarians. Nevertheless, so far only five planarian species have been reported to carry mariner-like elements (MLEs), although several different species have been investigated. Regarding the number of copies of MLEs, Girardia tigrina is the only planarian species in which this has been evaluated, with an estimation of 8,000 copies of the element per haploid genome. Preliminary results obtained in our laboratory demonstrated that MLE is... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mariner; Planarian; Transposable element; Transposons. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572009000400012 |
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