Below is an instruction from Human. Write a response.
    ### Instruction:
    What are the genetic changes related to glucose-6-phosphate dehydrogenase deficiency ?
    ### Response:
    Mutations in the G6PD gene cause glucose-6-phosphate dehydrogenase deficiency.  The G6PD gene provides instructions for making an enzyme called glucose-6-phosphate dehydrogenase. This enzyme is involved in the normal processing of carbohydrates. It also protects red blood cells from the effects of potentially harmful molecules called reactive oxygen species.
    