In E.coli,which of the following factors function to ensure the proper binding of tRNA_f^Metduring mRNA binding and ribosomal subunit assembly?
(I) IF-1
(II) IF-2
(III) IF-3
(IV) EF-Ts

Question

Quizplus · Accepted Answer

IF-1 and IF-3 are initiation factors that assist in the binding of the small ribosomal subunit to the mRNA and in the proper positioning of the initiator tRNA. These factors ensure the correct binding and assembly of the ribosome during protein synthesis. IF-2 helps in the binding of the initiator tRNA to the small ribosomal subunit, but it is not necessary for the proper binding of other tRNAs during elongation. EF-Ts is an elongation factor that assists in the activation of aminoacyl-tRNAs during protein synthesis and is not involved in the initial assembly of the ribosome. Therefore, the correct choice is C) I, III.

In EColi,which of the Following Factors Function to Ensure the Proper