ListarDGen-Artículos, capítulos... por tema "DNA"
Mostrando ítems 1-9 de 9
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A discontinuous DNA glycosylase domain in a family of enzymes that excise 5-methylcytosine
(Oxford University Press, 2011)DNA cytosine methylation (5-meC) is a widespread epigenetic mark associated to gene silencing. In plants, DEMETER-LIKE (DML) proteins typified by Arabidopsis REPRESSOR OF SILENCING 1 (ROS1) initiate active DNA demethylation ... -
An AP Endonuclease Functions in Active DNA Demethylation and Gene Imprinting in Arabidopsis
(Public Library of Science, 2015)Active DNA demethylation in plants occurs through base excision repair, beginning with removal of methylated cytosine by the ROS1/DME subfamily of 5-methylcytosine DNA glycosylases. Active DNA demethylation in animals ... -
Caracterización genética de ganado bovino criollo argentino utilizando microsatélites
(Universidad de Córdoba, Servicio de Publicaciones, 1998)It is characterized a sample of Bovino Criollo Argentino cattle with a panel of eight microsatellites. It is detected a number of alleles between 2 and 7. The values of Heterocigosity by locus are between 0.46 for HEL-1 ... -
Estudio con microsatélites de las principales variedades de ganado porcino del tronco ibérico
(Universidad de Córdoba, Servicio de Publicaciones, 2000)It is characterized a sample of 10 Iberian Pigs strains and one of Duroc with a panel of 25 microsatellites. It was detected a number of alleles between 4 and 20. The values of Heterocigosity by locus ranged between 0.03 ... -
Homologous Recombination Is Stimulated by a Decrease in dUTPase in Arabidopsis
(Public Library Of Science (PLOS), 2011)Deoxyuridine triphosphatase (dUTPase) enzyme is an essential enzyme that protects DNA against uracil incorporation. No organism can tolerate the absence of this activity. In this article, we show that dUTPase function is ... -
Promoter DNA Hypermethylation and Gene Repression in Undifferentiated Arabidopsis Cells
(Public Library of Science, 2008)Maintaining and acquiring the pluripotent cell state in plants is critical to tissue regeneration and vegetative multiplication. Histone-based epigenetic mechanisms are important for regulating this undifferentiated state. ... -
ROS1 5-methylcytosine DNA glycosylase is a slow-turnover catalyst that initiates DNA demethylation in a distributive fashion
(Oxford University Press, 2009)Arabidopsis ROS1 belongs to a family of plant 5-methycytosine DNA glycosylases that initiate DNA demethylation through base excision. ROS1 displays the remarkable capacity to excise 5-meC, and to a lesser extent T, ... -
The DNA Repair Protein XRCC1 Functions in the Plant DNA Demethylation Pathway by Stimulating Cytosine Methylation (5-meC) Excision, Gap Tailoring, and DNA Ligation
(JBC, 2013)Background: Active DNA demethylation in plants is initiated by 5-meC DNA glycosylases of the ROS1/DME family and continued through a base excision repair pathway. Results: XRCC1 stimulates ROS1-initiated demethylation ...