Below is an instruction from Human. Write a response.
    ### Instruction:
    What are the genetic changes related to Carpenter syndrome ?
    ### Response:
    Mutations in the RAB23 or MEGF8 gene cause Carpenter syndrome.  The RAB23 gene provides instructions for making a protein that is involved in a process called vesicle trafficking, which moves proteins and other molecules within cells in sac-like structures called vesicles.
    