An investigator is developing a new vaccine. Eukaryote ribosomes are utilized to create a novel protein. After the aminoacyl-tRNA binds to the A site, which of the following is the next step in protein formation?

  1. A)Catalysis of peptide bondGABARITO
  2. B)Recognition of UAG codon by release factor
  3. C)Assembly of 40S subunit with tRNA
  4. D)Advancement of ribosome in 3' direction
  5. E)Assembly of 60S subunit with mRNA

Explicação

After aminoacyl-tRNA binds to the A site (step 1 of elongation), the next step is peptide bond formation catalyzed by peptidyl transferase, a ribozyme intrinsic to the rRNA of the large ribosomal subunit (60S in eukaryotes, 50S in prokaryotes). The peptide bon... Ver explicação completa e trilha adaptativa →

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