Ribosomal RNA:
rRNA (Ribosomal ribonucleic acid) is the RNA part of the ribosome, the cell structure which is the site of protein synthesis in all living cells. The Ribosomal RNA gives a mechanism for decoding mRNA into amino acids and interacts with tRNAs during translation through giving peptidyl transferase activity. The tRNAs bring the must amino acids corresponding to the appropriate mRNA codon. The ribosomal RNAs establish two subunits the LSU (large subunit) and SSU (small subunit). mRNA is sandwiched among the large and small subunits and the ribosome catalyzes the formation of a peptide bond among the 2 amino acids which are contained in the rRNA.
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Ribosomes are the universal ribonucleoprotein particles which translate the genetic code into proteins. They are established of two subunits which related upon initiation of protein synthesis. Classical eubacterial ribosomes 70S consist of 57 variant molecules 3 rRNAs and 54 proteins and can dissociate into a small 30S and a large subunit 50S. The small subunit is dependable for the formation of the initiation difficult performs the decoding of the genetic information and controls the fidelity of codon-anticodon connections. The large subunit catalyzes the peptide bond formation and gives the path for the nascent polypeptide chain.