What is the role of ribosomes during translation? Ribosomes move along mRNA molecules and catalyze the assembly of amino acids into protein chambers
Role of ribosomes: Ribosomes usually form linear or helical groups during active protein synthesis called polyribosomes or polysomes. The mRNA strand having coded information joins along with smaller subunits of ribosomes. The adjacent ribosomes are 360 A apart. The different parts of the ribosome connected with protein synthesis are: A tunnel for mRNA. A groove for the passage of newly synthesized polypeptide (larger subunit). Two active sites (P-site-peptidyl transfer or donor site and A-site or aminoacyl or acceptor site). A binding site for tRNA near A-site. Presence of enzyme peptidyl transferase. Recognition point of smaller subunit for mRNA. Presence of GTP-ase, binding sites for elongation factors, and translocases.
