Results 31 to 40 of about 10,709 (124)

Cloning and sequencing of the complicated rDNA gene family of Bos taurus

open access: yesCzech Journal of Animal Science, 2006
The rDNA genes coding for ribosomal RNA (rRNA) in animals are repeat sequences with high GC content and complicated structure. Based on the sequences of human ribosomal DNA repeat unit and transcription unit and the long and accurate PCR method with LA ...
D. Tang   +5 more
doaj   +1 more source

Investigating the Existence of Ribosomal Protein L5 Gene in Syrian Strain of Leishmania tropica Genome: Sequencing It and Evaluating Its Immune Response as DNA Vaccine

open access: yesJournal of Parasitology Research, 2021
Cutaneous leishmaniasis in Syria is caused mainly by Leishmania tropica. It represents a serious health problem, which has aggravated further after the civil war in the country.
Mohammad Maarouf, Alyaa A. Abdlwahab
doaj   +1 more source

ABH2 Couples Regulation of Ribosomal DNA Transcription with DNA Alkylation Repair

open access: yesCell Reports, 2013
Transcription has been linked to DNA damage. How the most highly transcribed mammalian ribosomal (rDNA) genes maintain genome integrity in the absence of transcription-coupled DNA damage repair is poorly understood.
Pishun Li   +7 more
doaj   +1 more source

Pareto optimal fronts of kinetic proofreading [PDF]

open access: yes, 2022
Biological processes such as DNA replication, RNA transcription, and protein translation show remarkable speed and accuracy in selecting the right substrate from pools of chemically identical molecules. This result is obtained by nonequilibrium reactions that dissipate chemical energy.
arxiv   +1 more source

The Amplified Ribosomal DNA of Dytiscid Beetles [PDF]

open access: yesProceedings of the National Academy of Sciences, 1974
During oogenesis in many animals there is a massive extrachromosomal synthesis of the genes for ribosomal RNA. In Dytiscid beetles, as in the toad Xenopus , the amplified ribosomal DNA occurs as circular molecules of different sizes. The circles fall into size classes that are integral multiples of a unit circle. It
Joseph G. Gall, Jean-David Rochaix
openaire   +3 more sources

A New Isolate of the Genus Malassezia Based on the Sequence Analysis of 26S and ITS1 in Ribosomal DNA [PDF]

open access: yesCell Journal, 2009
Malassezia species considered to be the etiological agents of pityriasis versicolor andMalassezia follicolitis in humans. Recently, on the basis of molecular data, four new specieswere added to the genus.
Hossein Mirhendi   +2 more
doaj  

Molecular systematics of the Phyllachorales (ascomycota, fungi) based on 18S ribosomal DNA sequences

open access: yesBrazilian Archives of Biology and Technology, 2003
In order to evaluate the monophyly of the Phyllachorales from a molecular standpoint and elucidate its phylogenetic relationships with other orders, a segment of the 18S rRNA gene from several representatives of the Phyllachorales, including species of ...
Denise Wanderlei-Silva   +2 more
doaj   +1 more source

The long-range interaction map of ribosomal DNA arrays. [PDF]

open access: yesPLoS Genetics, 2018
The repeated rDNA array gives rise to the nucleolus, an organelle that is central to cellular processes as varied as stress response, cell cycle regulation, RNA modification, cell metabolism, and genome stability.
Shoukai Yu, Bernardo Lemos
doaj   +1 more source

Neurodegeneration-associated instability of ribosomal DNA

open access: yesBiochimica 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.
Maciej Pietrzak   +4 more
openaire   +3 more sources

Ribosomal DNA magnification in Saccharomyces cerevisiae [PDF]

open access: yesJournal of Bacteriology, 1978
Strains monosomic for chromosome I of Saccharomyces cerevisiae contain 25 to 35% fewer rRNA genes than do normal diploid strains. When these strains are repeatedly subcultured, colonies are isolated that have magnified their number of rRNA genes to the diploid amount while remaining monosomic for chromosome I.
Harlyn O. Halvorson, D B Kaback
openaire   +3 more sources

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