Q28-9P - Organic Chemistry (Mcmurry)

Question

What amino acid sequence is coded by the following mRNA base sequence?

CUU-AUG-GCU-UGG-CCC-UAA

Step-by-Step Solution

Answer

The amino acid sequence for the given mRNA is Leu-Met-Ala-Trp-Pro-Stop.

Given Information

The mRNA sequence in the question can be given as,

CUU-AUG-GCU-UGG-CCC-UAA

Explanation for the amino acid sequence

The message denotes ‘Leu’ as C is first base, U is second base and U is third base. A and U are first and second base and G is third base. Then the message denotes ‘Met’. For GCU, G and C is first and second base then U is third base. Then, the message denotes ‘Ala’. The message indicates ‘Trp’ as C is first, second and third base. 

The final code message indicates ‘Stop’ as C is the first, second, and third base. There is a synthesis of proper proteins as the last amino acid is stopped. The end denotes the stop and the release of protein of the ribosome.