Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Alpha-thalassemia x-linked intellectual disability syndrome ?
    ### Response:
    Alpha-thalassemia x-linked intellectual disability (ATRX) syndrome is a genetic condition that causes intellectual disability, muscle weakness (hypotonia), short height, a particular facial appearance, genital abnormalities, and possibly other symptoms.  It is caused by mutations in the ATRX gene and is inherited in an x-linked way.
    