In prokaryotic protein synthesis, Nformylmethionine (fmet) is the first amino acid incorporated, whereas(normal) methionine is incorporated in eukaryotes. The same codon(AUG) serves both. What prevents methionine from being insertedinto the beginning and N-formylmethionine in the interior?

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Chapter7: Gene Expression And Control
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In prokaryotic protein synthesis, Nformylmethionine (fmet) is the first amino acid incorporated, whereas
(normal) methionine is incorporated in eukaryotes. The same codon
(AUG) serves both. What prevents methionine from being inserted
into the beginning and N-formylmethionine in the interior?

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