Below is an instruction from Human. Write a response.
    ### Instruction:
    What are the genetic changes related to McLeod neuroacanthocytosis syndrome ?
    ### Response:
    Mutations in the XK gene cause McLeod neuroacanthocytosis syndrome. The XK gene provides instructions for producing the XK protein, which carries the blood antigen Kx. Blood antigens are found on the surface of red blood cells and determine blood type. The XK protein is found in various tissues, particularly the brain, muscle, and heart.
    