Below is an instruction from Human. Write a response.
    ### Instruction:
    What are the genetic changes related to Peters plus syndrome ?
    ### Response:
    Mutations in the B3GLCT gene cause Peters plus syndrome. The B3GLCT gene provides instructions for making an enzyme called beta 3-glucosyltransferase (B3Glc-T), which is involved in the complex process of adding sugar molecules to proteins (glycosylation). Glycosylation modifies proteins so they can perform a wider variety of functions.
    