Results 51 to 60 of about 8,420 (205)
Nucleotide sequence relationships between vertebrate 5.8 S ribosomal RNAs
Nucleotide sequences of the 5.8 S ribosomal RNAs from HeLa cells, Xenopus laevis and chick embryo fibroblasts were compared. Xenopus laevis 5.8 S RNA differs from that of HeLa cells in four internal positions and at the 3' end of the molecule. Chick 5.8 S RNA differs from that of HeLa cells in two positions.
M. S. N. Khan, B.E.H. Maden
openaire +4 more sources
ABSTRACT Efficient use of environmental nucleic acids (eNAs) in freshwater biodiversity monitoring requires understanding their degradation and detectability in interconnected ecosystems. We employed a novel field‐scale assay to compare environmental DNA (eDNA) and environmental RNA (eRNA) decay rates and detectability across four genetic markers (16S,
Wendy B. Morgado‐Gamero+2 more
wiley +1 more source
Structural characterization of wild edible Pleurotuscollected from Punjab, India
Oyster mushroom (Pleurotus spp.) belongs to the class Basidiomycetes, family Agaricaceae, commonly known as ‘dhingri’ in India and proliferates naturally on dead, decay wooden logs or trunks of deciduous or coniferous woods in tropical and temperate ...
AMANPREET KAUR, H S SODHI
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Nucleolar Organization in Response to Transcriptional Stress
In this review, we provide an overview of the research field on nucleolar regulation, mainly focusing on nucleolar organization under transcriptional stress. We also highlight the importance of ribosomal DNA stability, particularly in disease prevention, including cancer.
Rikiya Imamura, Takaaki Yasuhara
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Active nucleoli have the capability to release perinuclear heterochromatin, which is a novel event of iPSC reprogramming. ABSTRACT Ribosome biogenesis occurs within the nucleolus, with the initial step being the transcription of ribosomal DNA (rDNA). Although rDNA transcription is limited in somatic cells, it is more active in stem cells. Nevertheless,
Yuchen Sun+7 more
wiley +1 more source
In situ quantification of ribosome number by electron tomography
Abstract Ribosomes, discovered in 1955 by George Palade, were initially described as small cytoplasmic particles preferentially associated with the endoplasmic reticulum (ER). Over the years, extensive research has focused on both the structure and function of ribosomes.
Mounir El Hankouri+4 more
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Chicken rRNA Gene Cluster Structure. [PDF]
Ribosomal RNA (rRNA) genes, whose activity results in nucleolus formation, constitute an extremely important part of genome. Despite the extensive exploration into avian genomes, no complete description of avian rRNA gene primary structure has been ...
Alexander G Dyomin+7 more
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Background Ribosomal RNA (rRNA) consists of four non‐coding RNAs, the 28S, 5.8S, 18S, and 5S rRNA. Abnormal expression of rRNA has been found in multiple tumors, and the methylation of rDNA promoter may affect rRNA expression as an epigenetic regulatory ...
Shanshan Ha+4 more
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A new species of Semisulcospira O. Boettger, 1886 (Gastropoda, Cerithoidea, Semisulcospiridae) from Fujian, China with mitochondrial genome and its phylogenetic implications [PDF]
During our investigation of the diversity and phylogeny of the family Semisulcospiridae in China, we have found a presumed new species in mountain streams of Xiamen, Fujian Province on both morphology and molecular evidence.
Yi-Bin Xu+7 more
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Diverging repeatomes in holoparasitic Hydnoraceae uncover a playground of genome evolution
Summary The transition from an autotrophic to a heterotrophic lifestyle is associated with numerous genomic changes. These often involve large genomic alterations, potentially driven by repetitive DNAs. Despite their recognized role in shaping plant genomes, the contribution of repetitive DNAs to parasitic plant genome evolution remains largely ...
Woorin Kim+7 more
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