Below is an instruction from Human. Write a response.
    ### Instruction:
    What are the genetic changes related to Romano-Ward syndrome ?
    ### Response:
    Mutations in the KCNE1, KCNE2, KCNH2, KCNQ1, and SCN5A genes cause Romano-Ward syndrome. These genes provide instructions for making proteins that act as channels across the cell membrane. These channels transport positively charged atoms (ions), such as potassium and sodium, into and out of cells.
    