Results 61 to 70 of about 12,098 (230)
Modeling of Ribosome Dynamics on a ds-mRNA under an External Load [PDF]
J. Chem. Phys. 145, 025101 (2016), 2016 Protein molecules in cells are synthesized by macromolecular machines called ribosomes. According to recent experimental data, we reduce the complexity of the ribosome and propose a model to express its activity in six main states. Using our model, we study the translation rate in different biological relevant situations in the presence of external ...
arxiv +1 more source
In situ quantification of ribosome number by electron tomography
Journal of Microscopy, EarlyView.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
wiley +1 more source
Nucleotide sequence relationships between vertebrate 5.8 S ribosomal RNAs
Nucleic Acids Research, 1977 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
Structural characterization of wild edible Pleurotuscollected from Punjab, India
The Indian Journal of Agricultural SciencesOyster 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
doaj +1 more source
BMC Ecology and Evolution, 2021 Background Autotetraploid Carassius auratus (4n = 200, RRRR) (abbreviated as 4nRR) is derived from whole genome duplication of Carassius auratus red var. (2n = 100, RR) (abbreviated as RCC).
Chun Zhao +10 more
doaj +1 more source
Long non-coding RNAs as a source of new peptides [PDF]
, 2014 Deep transcriptome sequencing has revealed the existence of many transcripts that lack long or conserved open reading frames and which have been termed long non-coding RNAs (lncRNAs). Despite the existence of several well-characterized lncRNAs that play roles in the regulation of gene expression, the vast majority of them do not yet have a known ...
arxiv +1 more source
Defective Processing of Cytoplasmic and Chloroplast Ribosomal RNA in the Absence of Arabidopsis DXO1
Plant, Cell &Environment, EarlyView.ABSTRACT Decapping 5′‐3′ exoribonucleases from the DXO/Rai1 family are highly conserved among eukaryotes and exhibit diverse enzymatic activities depending on the organism. The biochemical and structural properties of the plant DXO1 differ from the yeast and animal counterparts, which is reflected in the in vivo functions of this enzyme.
Monika Zakrzewska‐Placzek +5 more
wiley +1 more source
A new species of Semisulcospira O. Boettger, 1886 (Gastropoda, Cerithoidea, Semisulcospiridae) from Fujian, China with mitochondrial genome and its phylogenetic implications [PDF]
Zoosystematics and EvolutionDuring 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
doaj +3 more sources
Conserved Organisation of 45S rDNA Sites and rDNA Gene Copy Number among Major Clades of Early Land Plants. [PDF]
PLoS ONE, 2016 Genes encoding ribosomal RNA (rDNA) are universal key constituents of eukaryotic genomes, and the nuclear genome harbours hundreds to several thousand copies of each species.
Marcela Rosato +3 more
doaj +1 more source
Molecular Genetics & Genomic Medicine, 2019 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
doaj +1 more source