Below is an instruction from Human. Write a response.
    ### Instruction:
    What are the genetic changes related to primary carnitine deficiency ?
    ### Response:
    Mutations in the SLC22A5 gene cause primary carnitine deficiency. This gene provides instructions for making a protein called OCTN2 that transports carnitine into cells. Cells need carnitine to bring certain types of fats (fatty acids) into mitochondria, which are the energy-producing centers within cells.
    