The Ribosome

The ribosome is the maoromoleculai machine that directs the synthesis of proteins. Consistent with the additional challenges of translating a nucleic acid code into an amino acid code, the ribosome is larger and more complex than the minimal machinery required for UNA or RNA synthesis. Indeed, single polypeptides cart perform DNA or RNA

alanine- tRNA

FIGURE 14-10 Cysteinyl-tRNA charged with C cr A. Chemical reductions of cysteine attached to cysteinyl tRNA.

alanine- tRNA

FIGURE 14-10 Cysteinyl-tRNA charged with C cr A. Chemical reductions of cysteine attached to cysteinyl tRNA.

cysteinyl-tRNA

cysteine NH2 H

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