Meier-Gorlin Syndrome 2, also known as mgors2, is related to x-linked intellectual disability-psychosis-macroorchidism syndrome and hydroxykynureninuria. An important gene associated with Meier-Gorlin Syndrome 2 is ORC4 (Origin Recognition Complex Subunit 4), and among its related pathways/superpathways is Primary ovarian insufficiency. Affiliated tissues include breast and trachea, and related phenotypes are delayed skeletal maturation and microtia