Below is an instruction from Human. Write a response.
    ### Instruction:
    What are the genetic changes related to Allan-Herndon-Dudley syndrome ?
    ### Response:
    Mutations in the SLC16A2 gene cause Allan-Herndon-Dudley syndrome. The SLC16A2 gene, also known as MCT8, provides instructions for making a protein that plays a critical role in the development of the nervous system. This protein transports a particular hormone into nerve cells in the developing brain.
    