Ataxia-Telangiectasia-Like Disorder 1, also known as ataxia-telangiectasia-like disorder, is related to ataxia-telangiectasia-like disorder 2 and inherited cancer-predisposing syndrome, and has symptoms including dysdiadochokinesis and gait ataxia. An important gene associated with Ataxia-Telangiectasia-Like Disorder 1 is MRE11 (MRE11 Homolog, Double Strand Break Repair Nuclease). Affiliated tissues include eye and cerebellum, and related phenotypes are ataxia and dysarthria