Regional discrimination and propagation of local rearrangements along the ribosomal exit tunnel.

Abstract excerpt

All proteins, from bacteria to man, are made in the ribosome and are elongated, one residue at a time, at the peptidyl transferase center. This growing peptide chain wends its way through the ribosomal tunnel to the exit port, ~100Å from the peptidyl transferase center. We have identified locations in the tunnel that sense and respond to single side chains of the nascent peptide to induce local conformational...

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