Problem: Determine whether the following events occur during initiation, elongation, or termination.In E. coli, RF1 recognizes UAG and binds at the A sitein E. coli, EF-G-GTP  displaces the tRNA in the A site an aminoacyl-tRNA enters the A sitein E. coli, mRNA binds to the 30S ribosomal subunitkinetic proofreading occurs the first AUG initiator tRNA  codon is recognized initiator tRNA enters the P site

FREE Expert Solution

In E. coli, RF1 recognizes UAG and binds at the A site → TERMINATION

RF1 = release factor that recognizes UAG → a stop codon


In E. coli, EF-G-GTP  displaces the tRNA in the A site → ELONGATION

EF-G-GTP = promotes translocation through GTP binding and hydrolysis

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Problem Details

Determine whether the following events occur during initiation, elongation, or termination.

In E. coli, RF1 recognizes UAG and binds at the A site

in E. coli, EF-G-GTP  displaces the tRNA in the A site 

an aminoacyl-tRNA enters the A site

in E. coli, mRNA binds to the 30S ribosomal subunit

kinetic proofreading occurs 

the first AUG initiator tRNA  codon is recognized 

initiator tRNA enters the P site