Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados Braz. J. Genet. (1) Genet. Mol. Biol. (1) Autor Folle,Gustavo A. (2) Martínez-López,Wilner (2) Bonomi,Rossana (1) Drets,Máximo E. (1) Mendez-Acuña,Leticia (1) Obe,Günter (1) Porro,Valentina (1) Savage,John R.K. (1) Mais... Palavra-chave AluI (1) BamHI (1) Chinese hamster (1) Chromatid gaps (1) Microphotometric scanning (1) Ovary cells (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2000 (1) 1996 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Interchromosomal distribution of gamma ray-induced chromatid aberrations in Chinese hamster ovary cells Genet. Mol. Biol. Martínez-López,Wilner; Porro,Valentina; Folle,Gustavo A.; Mendez-Acuña,Leticia; Savage,John R.K.; Obe,Günter. Interchromosomal distributions of breakpoints from chromatid-type aberrations induced by gamma rays in Chinese hamster ovary (CHO) cells were analyzed. In most chromosomes the distribution was as expected from chromosome lengths for simple breaks or the respective relative corrected length in case of exchanges. There were deviations from expectation in a few chromosomes for chromatid breaks, interchanges, intra-arm intrachanges and inter-arm intrachanges. Especially interesting are the results concerning chromosomes 2 and 8, which were more often involved in exchanges than expected. An "exchange phenotype" for these chromosomes is proposed and possible explanations for the nonrandom distribution of chromosome breakpoints are presented. Tipo: Info:eu-repo/semantics/article Ano: 2000 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572000000400053 Microphotometric scanning of chromatid gaps and breaks induced by AluI and BamHI in Chinese hamster ovary cells Braz. J. Genet. Martínez-López,Wilner; Bonomi,Rossana; Folle,Gustavo A.; Drets,Máximo E.. Chromatid gaps and breaks induced by the restriction endonucleases AluI and BamHI in the long arm of chromosome 1 of Chinese hamster ovary cells were microphotometrically scanned and mapped to a quantitative G-band map. More than 50% of chromatid breaks appeared as chromatin losses of greater than 5% of the total arm length. The majority of chromatid gaps and breaks as well as chromatin losses induced by both restriction endonucleases were non-randomly located in a region from 0.35 to 0.65 relative length units of the long arm of chromosome 1. We suggest that the access of these endonucleases to chromosomal DNA depends on the local organization of the chromatin. Tipo: Info:eu-repo/semantics/article Palavras-chave: Microphotometric scanning; Chromatid gaps; AluI; BamHI; Chinese hamster; Ovary cells. Ano: 1996 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84551996000400007 Registros recuperados: 2 Primeira ... 1 ... Última

Empresa Brasileira de Pesquisa Agropecuária - Embrapa Todos os direitos reservados, conforme Lei n° 9.610 Política de Privacidade Área restrita		Embrapa Parque Estação Biológica - PqEB s/n° Brasília, DF - Brasil - CEP 70770-901 Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco