Megacystis-Microcolon-Intestinal Hypoperistalsis Syndrome 1, also known as megacystis-microcolon-intestinal hypoperistalsis syndrome, is related to visceral myopathy 1 and intestinal pseudo-obstruction, and has symptoms including constipation, diarrhea and vomiting. An important gene associated with Megacystis-Microcolon-Intestinal Hypoperistalsis Syndrome 1 is MYLK (Myosin Light Chain Kinase), and among its related pathways/superpathways are PAK Pathway and Sweet Taste Signaling. The drugs Gastrointestinal Agents and Laxatives have been mentioned in the context of this disorder. Affiliated tissues include smooth muscle and colon, and related phenotypes are nausea and vomiting and megacystis