Immunodeficiency 23, also known as pgm3-related congenital disorder of glycosylation, is related to congenital disorder of glycosylation, type in and congenital disorder of glycosylation, type iij, and has symptoms including ataxia An important gene associated with Immunodeficiency 23 is PGM3 (Phosphoglucomutase 3), and among its related pathways/superpathways are Metabolism of proteins and Infectious disease. Affiliated tissues include bone marrow and t cells, and related phenotypes are recurrent respiratory infections and autoimmunity