Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Alpha-1 Antitrypsin Deficiency ?
    ### Response:
    Alpha-1 antitrypsin deficiency (AAT deficiency) is an inherited condition that raises your risk for lung and liver disease. Alpha-1 antitrypsin (AAT) is a protein that protects the lungs. The liver makes it. If the AAT proteins aren't the right shape, they get stuck in the liver cells and can't reach the lungs.
    