Below is an instruction from Human. Write a response.
    ### Instruction:
    What causes MYH7-related scapuloperoneal myopathy ?
    ### Response:
    What causes MYH7-related scapuloperoneal myopathy? MYH7-related scapuloperoneal myopathy is caused by mutations in the MYH7 gene. This gene, located on chromosome 14q12, provides instructions for making a protein known as the cardiac beta ()-myosin heavy chain.
    