Three of the duplicated genes, namely SLC16A2, RLIM, and NEXMIF have ID‐associated OMIM phenotypes: Allan‐Herndon‐Dudley syndrome (AHDS; OMIM #300523), Tonne‐Kalscheuer syndrome (TOKAS; OMIM #300978), and Mental retardation, X‐linked 98 (MRX98; OMIM #300912), respectively. The gene discussed is RLIM; the disease is Allan-Herndon-Dudley syndrome.