Ανάπτυξη και χαρακτηρισμός νέων αντιβιοτικών - αναστολέων της πρωτεϊνικής σύνθεσης

TL;DRAbstract

Ribosomes translate the genetic code into proteins in all living cells with extremely high efficiency, owing to their inherent flexibility and to their spectacular architecture. These large ribonucleoprotein particles synthesize proteins in all cells, using messenger RNA as the template, confirming that the ribosome is indeed a ribozyme, and aminoacyl-transfer RNAs as substrates (Steitz and Moore, 2003; Simonović and Steitz, 2008; Schmeing and Ramakrishnan, 2009). As the nascent polypeptide chain is being synthesized, it passes through a tunnel within the large ribosomal subunit and emerges at the solvent side where protein folding occurs. New studies indicate that in some cases, the tunnel plays a more active role. Accumulated evidence had definitely concluded that ribosomal tunnel is not only a passive conduit for the nascent chains but a rather functionally important compartment, where specific peptide sequences establish direct interactions with the tunnel, talking back to the ribo

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