Below is an instruction from Human. Write a response.
    ### Instruction:
    What are the genetic changes related to neuroferritinopathy ?
    ### Response:
    Mutations in the FTL gene cause neuroferritinopathy. The FTL gene provides instructions for making the ferritin light chain, which is one part (subunit) of a protein called ferritin. Ferritin stores and releases iron in cells. Each ferritin molecule can hold as many as 4,500 iron atoms.
    