Syndromic X-Linked Intellectual Disability Snyder Type, also known as snyder-robinson syndrome, is related to secondary progressive multiple sclerosis and x-linked intellectual disability, snyder type, and has symptoms including seizures An important gene associated with Syndromic X-Linked Intellectual Disability Snyder Type is SMS (Spermine Synthase), and among its related pathways/superpathways are Metabolism and Regulation of expression of SLITs and ROBOs. Affiliated tissues include bone and brain, and related phenotype is Increased BBC3 mRNA expression.