Below is an instruction from Human. Write a response.
    ### Instruction:
    What are the genetic changes related to hereditary antithrombin deficiency ?
    ### Response:
    Hereditary antithrombin deficiency is caused by mutations in the SERPINC1 gene. This gene provides instructions for producing a protein called antithrombin (previously known as antithrombin III). This protein is found in the bloodstream and is important for controlling blood clotting.
    