Becker's World of the Cell 9th Edition by Lewis Kleinsmith, Jeff Hardin, Gregory Paul Bertoni

تمرين 3

Sleuthing Using Mutants. An mRNA contains the following sequence:
5 ...CAACUGCCUGACCCACACUUAUCACUAAG
UAGCCUAGCAGUCUGA...3
The wild-type amino acid sequence encoded by this piece of the mRNA is as follows:
N... Asn-Cys-Leu-Thr-His-Thr-Tyr-His-C
The C-terminal ends of three mutant proteins resulting from mutations in the gene encoding this mRNA are as follows:
Mutant 1: N...Asn-Cys-Leu-Thr-His-Thr-C
Mutant 2: N...Asn-Cys-Leu-Thr-His-Thr-Tyr-His-Lys-C
Mutant 3: N...Asn-Cys-Leu-Thr-His-Thr-Tyr-His-Tyr-Ser-Ser-Leu-Ala-Val-C
Identify the mutations in each case that result in these mutant proteins.