Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Hyperprolinemia type 2 ?
    ### Response:
    Hyperprolinemia type 2 results in an excess of a particular protein building block (amino acid), called proline, in the blood. This condition generally occurs when proline is not broken down properly by the body. Hyperprolinemia type 2 causes proline levels in the blood to be 10 to 15 times higher than normal, and it also causes high levels of a related compound called pyrroline-5-carboxylate.
    