Search results
Results from the WOW.Com Content Network
RISA involves PCR amplification of a region of the rRNA gene operon between the small and large subunits called the intergenic spacer region ISR. [2] By using oligonucleotide primers targeted to conserved regions in the 16S and 23S genes, RISA fragments can be generated from most of the dominant bacteria in an environmental sample.
These key traits of rRNA have become especially important for gene database projects (comprehensive online resources such as SILVA [63] or SINA [64]) where alignment of ribosomal RNA sequences from across the different biologic domains greatly eases "taxonomic assignment, phylogenetic analysis and the investigation of microbial diversity." [63]
28S ribosomal RNA is the structural ribosomal RNA (rRNA) for the large subunit (LSU) of eukaryotic cytoplasmic ribosomes, and thus one of the basic components of all eukaryotic cells. It has a size of 25S in plants and 28S in mammals, hence the alias of 25S–28S rRNA .
Thus, intracellular signals must coordinate the synthesis of rRNA with that of other components of protein translation. Myc is known to bind to human ribosomal DNA in order to stimulate rRNA transcription by RNA polymerase I. [8] Two specific mechanisms have been identified, ensuring proper control of rRNA synthesis and Pol I-mediated ...
Ribosomal RNA (rRNA) is the catalytic component of the ribosomes. The rRNA is the component of the ribosome that hosts translation. Eukaryotic ribosomes contain four different rRNA molecules: 18S, 5.8S, 28S and 5S rRNA. Three of the rRNA molecules are synthesized in the nucleolus, and one is synthesized elsewhere. In the cytoplasm, ribosomal ...
The assembly of the latter also include the 5S rRNA as well as the additional 5.8S rRNA in eukaryotes. The rDNA-genes are commonly present with multiple copies in the genome, where they are organized in linked groups in most species, separated by an internal transcribed spacer (ITS) and preceded by the External transcribed spacer (ETS) .
It is a component of the Eukaryotic small ribosomal subunit (40S) and the cytosolic homologue of both the 12S rRNA in mitochondria and the 16S rRNA in plastids and prokaryotes. Similar to the prokaryotic 16S rRNA, the genes of the 18S ribosomal RNA have been widely used for phylogenetic studies and biodiversity screening of eukaryotes. [1]
RNAs are critical in gene expression and that gene expression depends on mRNA, rRNA, and tRNA. [15] There is a relationship between protein and RNAs. This relationship could suggest that there is a mutual transfer of energy or information. [16] In vitro RNA selection experiments have produced RNA that bind tightly to amino acids.