Cockayne Syndrome a, also known as cockayne syndrome type 1, is related to uv-sensitive syndrome 2 and cockayne syndrome type 3. An important gene associated with Cockayne Syndrome a is ERCC8 (ERCC Excision Repair 8, CSA Ubiquitin Ligase Complex Subunit), and among its related pathways/superpathways are Homology Directed Repair and Chks in Checkpoint Regulation. Affiliated tissues include skin and eye, and related phenotypes are intellectual disability and failure to thrive