Results 171 to 180 of about 1,960,648 (201)

The replication of ribosomal DNA in the macronucleus of Tetrahymena

Chromosoma, 1977
The replication of extrachromosomal rDNA molecules from the macronucleus of Tetrahymena was studied by electron microscopy. Replication begins in the center of the palindromic molecule and proceeds by means of bidirectional fork movement toward the free ends of the molecule.
M A, Truett, J G, Gall
openaire   +2 more sources

Structure of ribosomal DNA in Physarum polycephalum

Journal of Molecular Biology, 1976
Abstract The sequences coding for Physarum ribosomal RNA are localized on idependently replicating, linear DNA molecules of a discrete size, M r = 37 × 10 6 . Restriction endonucleases Eco RI and Hin dIII each cut ribosomal DNA into one large and two small fragments.
V M, Vogt, R, Braun
openaire   +2 more sources

Beyond ribosomal DNA: on towards the telomere

Chromosoma, 1997
We have sequenced and analyzed 8.3 kb of sequence adjacent and distal to the human ribosomal DNA (rDNA); this distal sequence connects to the rDNA cluster just 4 kb upstream of the first promoter and is shared among the acrocentric chromosomes and, at least in part, it is also present in other primates.
I L, Gonzalez, J E, Sylvester
openaire   +2 more sources

Heterogeneity in Chinese hamster ribosomal DNA

Chromosoma, 1978
A discrete heterogeneity has been detected in Chinese hamster ribosomal DNA after Eco R1 digestion of total DNA followed by a Southern transfer and hybridization with [125I]18S or [125I]28S ribosomal RNA. Digestion with Eco R1 produces three fragments, 4.3, 6.0 and 9.5 x 10(6) daltons respectively, which hybridize with 18S RNA.
openaire   +2 more sources

Therapeutics and DNA Methylation Inhibitors

Medical Epigenetics, 2021
Shyamala C Navada
exaly  

Circulating Tumor DNA in Advanced Solid Tumors: Clinical Relevance and Future Directions

Ca-A Cancer Journal for Clinicians, 2021
Heather Parsons, Atish D. Choudhury, Michael L Cheng   +2 more
exaly  

Treacle TOPBP1 Into Nuclei to Handle Ribosomal-DNA Replication Stress

Nature Reviews Molecular Cell Biology, 2021
Eytan Zlotorynski
exaly  

RIBOSOMAL DNA IN RANA

Evolution, 1987
openaire   +2 more sources

Regulation of Ribosomal RNA Gene Copy Number, Transcription and Nucleolus Organization in Eukaryotes

Nature Reviews Molecular Cell Biology, 2023
Christoph Engel, Takehiko Kobayashi
exaly  

The Retrotransposon R2 Maintains Drosophila Ribosomal DNA Repeats

Proceedings of the National Academy of Sciences of the United States of America, 2023
Yukiko Yamashita, Jonathan O Nelson, Alyssa Slicko   +2 more
exaly