How may the covalent modification of a protein with a phosphate group alter its function?

Video transcript

Hi everybody. Let's take a look at this practice problem together which of the following processes in which a phosphate group is added to a molecule can activate or deactivate an enzyme change the proteins, confirmation or alter its binding affinity for other molecules. So recall that a phosphate group is P 04. Now, the addition or taking off a phosphate group is very common in biology and it's discussed in the question, but let's just review it again. Phosphate modification effects can change enzyme activity. So it's often activating or deactivating an enzyme. It can change a protein confirmation when it's added on And it can also alter binding affinities for other molecules. So let's take a look at our options and figure out what the name is for the process of adding on the phosphate group. We've got a methylation. Now, methylation is the addition of a methyl group which is CH three. So a is not the correct answer. Then we've got be assimilation, assimilation is the addition of an acetyl group. Therefore, B is also not the correct answer. We've got D ubiquity in nation or ubiquity relation. Both are synonymous and this is the addition of the ubiquitous in protein. So this is also not the correct answer. Therefore, the correct answer is C phosphor elation is the addition of the phosphate group. Alright, everyone, I hope you found this helpful and I'll see you soon for the next practice problem.