Alpha Thalassemia-X-Linked Intellectual Disability Syndrome, also known as atr-x syndrome, is related to autism and microcephaly, and has symptoms including constipation An important gene associated with Alpha Thalassemia-X-Linked Intellectual Disability Syndrome is ATRX (ATRX Chromatin Remodeler), and among its related pathways/superpathways are Gene expression (Transcription) and RNA Polymerase I Promoter Opening. Affiliated tissues include testes and skin, and related phenotypes are intellectual disability and aphasia