Results 11 to 20 of about 338,742 (309)

Neurodegeneration-associated instability of ribosomal DNA

Biochimica et Biophysica Acta (BBA) - Molecular Basis of Disease, 2014
Homologous recombination (HR)-mediated instability of the repetitively organized ribosomal DNA (rDNA) has been proposed as a mediator of cell senescence in yeast triggering the DNA damage response. High individual variability in the content of human rDNA suggests that this genomic region remained relatively unstable throughout evolution.
Hallgren, Justin, Pietrzak, Maciej, Rempala, Grzegorz, Nelson, Peter T., Hetman, Michal   +4 more
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Characterization of Yeast Ribosomal DNA [PDF]

European Journal of Biochemistry, 1975
High‐molecular‐weight yeast ribosomal DNA, purified by preparative Hg2/Cs2SO4 gradient centrifugation, was characterized using RNA‐DNA hybridization, CsCl gradient analysis and denaturation‐renaturation experiments. The following conclusions are drawn from the results of these studies.
J, Retèl, H, Van Keulen
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Nuclear ribosomal DNA secondary structures and statistical approach for the phylogeny of Ampelomyces [PDF]

, 2022
Fungi belonging to the genus Ampelomyces are intracellular mycoparasites of the Erysiphales, which cause powdery mildew diseases in economically important crops. As Ampelomyces spp. are parasites of other parasites, they are named hyperparasites. Several
Prahl, Rosa Esther
core   +1 more source

Ribosomal DNA heterochromatin in plants [PDF]

Cytogenetic and Genome Research, 2005
The aim of this review is to integrate earlier results and recent findings to present the current state-of-the-art vision concerning the dynamic behavior of the ribosomal DNA (rDNA) fraction in plants. The global organization and behavioral features of rDNA make it a most useful system to analyse the relationship between chromatin topology and gene ...
Neves, N., Delgado, M., Silva, M., Caperta, A., Morais-Cecilio, L., Viegas, W.   +5 more
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Challenges and Approaches to Genotyping Repetitive DNA

G3: Genes, Genomes, Genetics, 2020
Individuals within a species can exhibit vast variation in copy number of repetitive DNA elements. This variation may contribute to complex traits such as lifespan and disease, yet it is only infrequently considered in genotype-phenotype associations ...
Elizabeth A. Morton, Ashley N. Hall, Elizabeth Kwan, Calvin Mok, Konstantin Queitsch, Vivek Nandakumar, John Stamatoyannopoulos, Bonita J. Brewer, Robert Waterston, Christine Queitsch   +9 more
doaj   +1 more source

Telomere and ribosomal DNA repeats are chromosomal targets of the bloom syndrome DNA helicase

BMC Cell Biology, 2003
Background Bloom syndrome is one of the most cancer-predisposing disorders and is characterized by genomic instability and a high frequency of sister chromatid exchange. The disorder is caused by loss of function of a 3' to 5' RecQ DNA helicase, BLM. The
Paric Enesa, Schawalder James, Neff Norma F   +2 more
doaj   +1 more source

A nuclear ribosomal DNA phylogeny of Acer inferred with maximum likelihood, splits graphs, and motif analysis of 606 sequences [PDF]

, 2006
The multi-copy internal transcribed spacer (ITS) region of nuclear ribosomal DNA is widely used to infer phylogenetic relationships among closely related taxa.
Guido W. Grimm, Susanne S. Renner, Hemleben, Vera, Alexandros Stamatakis, Grimm, Guido W., Stamatakis, Alexandros, Vera Hemleben, Renner, Susanne S.   +7 more
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Ribosomal DNA-connecting ribosome biogenesis and chromosome biology [PDF]

Chromosome Research, 2019
Ribosomal DNA, the topic of this special issue, has long fascinated biologists. The RNA products of the ribosomal DNA are the ribosomal RNAs that are part of the ribosome. In this special issue, we focus on the sequence, molecular organization, repair, stability, copy number, and peculiar genetics of this region of the genome.
Lev, Porokhovnik, Jennifer L, Gerton
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Topoisomerase IIα promotes activation of RNA polymerase I transcription by facilitating pre-initiation complex formation [PDF]

, 2013
Type II DNA topoisomerases catalyse DNA double-strand cleavage, passage and re-ligation to effect topological changes. There is considerable interest in elucidating topoisomerase II roles, particularly as these proteins are targets for anti-cancer drugs.
Porter, Andrew C. G., Panov, Konstantin I; id_orcid, Zomerdijk, Joost C.B.M., Russell, J., Miller, G. (Gail), Zomerdijk, Joost C B M, Porter, A.C., Porter, Andrew C G, Volkov, A., Panov, K.I., Panov, Konstantin I., Russell, J. (Jackie), Panova, T., Zomerdijk, J.C., Miller, Gail, Porter, Andrew C.G., Miller, G., Panova, Tatiana, Russell, Jackie, Ray, S., Ray, Swagat, Volkov, Arsen, Zomerdijk, Joost C. B. M.   +22 more
core   +1 more source

The Protist Ribosomal Reference database (PR2): a catalog of unicellular eukaryote Small Sub-Unit rRNA sequences with curated taxonomy [PDF]

, 2012
The interrogation of genetic markers in environmental meta-barcoding studies is currently seriously hindered by the lack of taxonomically curated reference data sets for the targeted genes.
Probert, Ian, Dolan, John R., Kooistra, Wiebe H.C.F., Guillou, Laure, Vaulot, Daniel, Campo, Javier, Del, Morard, Raphael, Bass, David, Logares, Ramiro, Montresor, Marina, del Campo, Javier, Lara, Enrique, Berney, Cédric, Zimmermann, Pascal, Burgaud, Gaétan, Pawlowski, Jan, Campo, Javier,, Bachar, Dipankar, Boutte, Christophe, Bittner, Lucie, Christen, Richard, Mahe, Frédéric, Dunthorn, Micah, Kooistra, Wiebe H. C. F., ,, Siano, Raffaele, Stoeck, Thorsten, Le Bescot, Noan, Audic, Stéphane, Decelle, Johan, Not, Fabrice, Massana, Ramon, de Vargas, Colomban, Sauvadet, Anne-Laure, Edvardsen, Bente, Holzmann, Maria   +35 more
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