Shown below are the amino acid sequence of the wild type (normal) and (4) mutant

Question

Shown below are the amino acid sequence of the wild type (normal) and (4) mutant forms of a short polypeptide. For each of the four mutaions below, provide a name of the most likely type of mutation that created each mutant protein. Put a star next to which of the mutants would you most likely expect to be a functional protein?

wild type: Met-Ser-Pro-Glu-Glu-Lys-Ser

Mutant 1: Met-Ser-Pro-Glu-Glu-Lys-Ser=____________________
mutant 2: Met-Ser-Val-Ile-Leu-Cys-Ala=_____________________
mutant 3: Met-Ser-Stop                       =_____________________
mutant 4: Met-Ser-Pro-Val-Glu-Lys-Ser=____________________

Explanation / Answer

in mutant 1 as we can see , the sequence of amino acids in the wild type as well as mutant 1 is same , so it is expected to be functional protein .

mutant 2 : there is a mutation in the codons coding for particular amino acid

mutant 3 will not produce any of the protein because there is a stop codon just after methionine.

mutant 4 : there is addition type of mutation .

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