Results 1 to 10 of about 69,429 (309)
Deletions in (CCCT)n repeat regions belonging to the human pRNA gene inhibit its expression [PDF]
Human GenomicsBackground Ribosomal DNA (rDNA), the most abundantly expressed locus in the human genome, is represented by hundreds of units per cell. Each unit includes a 13 kb long region (47S rDNA) containing the genes of ribosomal particles, and a 30 kb long ...
Nikola Chmúrčiaková +3 more
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Molecular detection of parasites (Trematoda, Digenea: Bucephalidae and Monorchiidae) in the European flat oyster Ostrea edulis (Mollusca: Bivalvia) [PDF]
The European Zoological Journal, 2018 Members of the globally distributed bivalve family Ostreidae (oysters) have a significant role in marine ecosystems and include species of high economic importance. In this work, we report the occurrence of digenean parasites of the families Bucephalidae
E. Mancini +6 more
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Hoya pyrifolia (Apocynaceae), a new species from south-western Yunnan, China [PDF]
PhytoKeys, 2021 Hoya pyrifolia, a new species of Apocynaceae from Yunnan Province, China, is described and illustrated. Results from phylogenetic analyses, based on combined DNA fragments of the nuclear ribosomal external transcribed spacer (ETS), intergeneric ...
Er-Feng Huang +6 more
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Structure of the intergenic spacers in chicken ribosomal DNA [PDF]
Genetics Selection Evolution, 2019 Abstract Background Ribosomal DNA (rDNA) repeats are situated in the nucleolus organizer regions (NOR) of chromosomes and transcribed into rRNA for ribosome biogenesis. Thus, they are an essential component of eukaryotic genomes.
Dyomin, Alexander +10 more
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Ribosomal DNA (rDNA) spacer polymorphism in mole rats. [PDF]
Molecular Biology and Evolution, 1987 Genetic differentiation of ribosomal DNA (rDNA) nontranscribed-spacer (NTS) polymorphism was analyzed in 50 individuals from 13 populations among the four chromosomal species (2n = 52, 2n = 54, 2n = 58, and 2n = 60) of subterranean mole rats of the Spalax ehrenbergi complex in Israel.
H, Suzuki, K, Moriwaki, E, Nevo
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Transcriptional role for the nontranscribed spacer of rat ribosomal DNA. [PDF]
Molecular and Cellular Biology, 1986 In vitro transcription of the rat rRNA gene led to the identification of a region within a 3.4-kilobase fragment of the nontranscribed spacer (NTS) which significantly increased the transcription of rat ribosomal DNA. Promoter constructs containing this region were transcribed up to 17-fold more efficiently in vitro than templates with only 167 or 286 ...
B G, Cassidy +2 more
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Hayati Journal of Biosciences, 2012 Tempe fermentation involved complex microbial communities which are only revealed partially through culture dependent methods. Culture-independent methods would be potential to unravel this complex microbial fermentation. Appropriate DNA extraction is an
CECILIA ANNA SEUMAHU +3 more
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Elatostema qinzhouense (Urticaceae), a new species from limestone karst in Guangxi, China [PDF]
PeerJ, 2021 Elatostema qinzhouense L.F. Fu, A.K. Monro & Y.G. Wei, a new species from Guangxi, China is described and illustrated. Morphologically, E. qinzhouense is most similar to E.
Longfei Fu +7 more
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Transcription in cloned spacers of Xenopus laevis ribosomal DNA. [PDF]
Proceedings of the National Academy of Sciences, 1983 Rare individuals of Xenopus laevis exhibit frequent initiation of transcription in the spacers of oocyte ribosomal DNA (rDNA). Using electron microscopy we have characterized spacer transcription in such an individual and have confirmed that the sites of transcription initiation correspond to the imperfectly duplicated promoters ("Bam islands") present
G T, Morgan, R H, Reeder, A H, Bakken
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Functional analysis of transcribed spacers of yeast ribosomal DNA. [PDF]
The EMBO Journal, 1990 Making use of an rDNA unit, containing oligonucleotide tags in both the 17S and 26S rRNA gene, we have analyzed the effect of various deletions in the External Transcribed Spacer (ETS) and in one of the Internal Transcribed Spacers 1 (ITS1) on the process of ribosome formation in yeast.
W, Musters +4 more
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