How many molecules of ATP and GTP are require | vedclass

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Question

(D) To incorporate one amino acid into a polypeptide chain during translation,the cell requires $1$ $ATP$ molecule for the activation of the amino aci

Vedclass · Accepted Answer

$25\ ATP, 50\ GTP$

Vedclass · Answer

(D) To incorporate one amino acid into a polypeptide chain during translation,the cell requires $1$ $ATP$ molecule for the activation of the amino acid (aminoacyl-tRNA synthetase reaction) and $2$ $GTP$ molecules (one for the binding of aminoacyl-tRNA to the $A$-site and one for translocation). Therefore,for $n$ amino acids,the requirement is $n$ $ATP$ and $2n$ $GTP$ molecules. For $25$ amino acids: $ATP$ required = $25 	imes 1 = 25$ $GTP$ required = $25 	imes 2 = 50$ Thus,the correct answer is $25\ ATP$ and $50\ GTP$.

How many molecules of $ATP$ and $GTP$ are required to incorporate $25$ amino acids into a peptide chain?

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