Individuals with phenylketonuria cannot convert phenylalanine to tyrosine. Why don't these individuals exhibit a deficiency of tyrosine?

Video transcript

Hello everyone and welcome to today's video. So people with P. K. You are not able to convert the amino acid phenylalanine into tyrosine because they lack which enzyme will very easy. Or just direct method of identifying the enzyme that performs at certain action is just by looking at the name. So for example, let's look at answer choice. A glycerine cleavage enzyme complex here we have glycerine. So now remember that glycerine is an amino acid. So this enzyme is going to somehow be involved in glycerine metabolism and this is exactly what is going to be doing. So if we have an enzyme that is involved in fennel alunan metabolism or in this case converting phenylalanine into tyrosine is going to have that name somewhere. And if we look at our answer to it is the only way the only one that does this is answer choice C which is fennel, alunan hydroxy place. This is in fact the enzyme that is able to convert phenylalanine into tyrosine. We're going to highlight it as a final answer to our question. I really hope this helped you and I hope to see you on the next one