The activity of a certain protein is dependent on its phosphorylation. A mutation in its gene changed a single amino acid which affected the function of the molecule. Which amino acid change is most likely to account for this observation ?A. Tyrosine to TryptophanB. Lysine to valineC. Leucine to isoleucineD. Valine to alanine

The activity of a certain protein is dependent on its phosphorylation.

1.	The activity of a certain protein is dependent on its phosphorylation. A mutation in its gene changed a single amino acid which affected the function of the molecule. Which amino acid change is most likely to account for this observation ?A. Tyrosine to TryptophanB. Lysine to valineC. Leucine to isoleucineD. Valine to alanine
Answer» Correct Answer - A Serine, tyrosine, threonine and histidine are most common target for phosphorylation in eukaryotes. If Tyrosine get mutated in tryptophan than phosphorylation of gene does not occur and gene can not ne activated

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