Dyrk1a-Related Intellectual Disability Syndrome Due to 21q22.13q22.2 Microdeletion, is also known as 21q22.13q22.2 microdeletion syndrome. An important gene associated with Dyrk1a-Related Intellectual Disability Syndrome Due to 21q22.13q22.2 Microdeletion is DYRK1A (Dual Specificity Tyrosine Phosphorylation Regulated Kinase 1A). Affiliated tissues include breast and pituitary, and related phenotypes are intellectual disability and gait disturbance