enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Ribosomal RNA - Wikipedia

    en.wikipedia.org/wiki/Ribosomal_RNA

    In the ribosomes of eukaryotes such as humans, the SSU contains a single small rRNA (~1800 nucleotides) while the LSU contains two small rRNAs and one molecule of large rRNA (~5000 nucleotides). Eukaryotic rRNA has over 70 ribosomal proteins which interact to form larger and more polymorphic ribosomal units in comparison to prokaryotes. [ 6 ]

  3. RNA - Wikipedia

    en.wikipedia.org/wiki/RNA

    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 ...

  4. Messenger RNA - Wikipedia

    en.wikipedia.org/wiki/Messenger_RNA

    Once within the cell, they must then leave the cell's transport mechanism to take action within the cytoplasm, which houses the necessary ribosomes. [ 45 ] Overcoming these challenges, mRNA as a therapeutic was first put forward in 1989 "after the development of a broadly applicable in vitro transfection technique."

  5. Ribosome - Wikipedia

    en.wikipedia.org/wiki/Ribosome

    The start codon in all mRNA molecules has the sequence AUG. The stop codon is one of UAA, UAG, or UGA; since there are no tRNA molecules that recognize these codons, the ribosome recognizes that translation is complete. [4] When a ribosome finishes reading an mRNA molecule, the two subunits separate and are usually broken up but can be reused.

  6. Eukaryotic ribosome - Wikipedia

    en.wikipedia.org/wiki/Eukaryotic_ribosome

    The 40S subunit contains a 18S ribosomal RNA (abbreviated 18S rRNA), which is homologous to the prokaryotic 16S rRNA. The 60S subunit contains a 28S rRNA that is homologous to the prokaryotic 23S ribosomal RNA. In addition, it contains a 5.8S rRNA that corresponds to the 5' end of the 23S rRNA, and a short 5S rRNA.

  7. Translation (biology) - Wikipedia

    en.wikipedia.org/wiki/Translation_(biology)

    A ribosome is made up of two subunits, a small subunit, and a large subunit. These subunits come together before the translation of mRNA into a protein to provide a location for translation to be carried out and a polypeptide to be produced. [2] The choice of amino acid type to add is determined by a messenger RNA (mRNA) molecule. Each amino ...

  8. Ribosomal DNA - Wikipedia

    en.wikipedia.org/wiki/Ribosomal_DNA

    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) .

  9. Ribosome biogenesis - Wikipedia

    en.wikipedia.org/wiki/Ribosome_biogenesis

    Ribosomes are the macromolecular machines that are responsible for mRNA translation into proteins. The eukaryotic ribosome, also called the 80S ribosome, is made up of two subunits – the large 60S subunit (which contains the 25S [in plants] or 28S [in mammals], 5.8S, and 5S rRNA and 46 ribosomal proteins) and a small 40S subunit (which contains the 18S rRNA and 33 ribosomal proteins). [6]