label: PIK3R1 Deficiency
label_lc: pik3r1 deficiency
description: A deficiency caused by mutation(s) in the PIK3R1 gene, encoding phosphatidylinositol 3-kinase regulatory subunit alpha. It is associated with autosomal recessive agammaglobulinemia 7, immunodeficiency 36 and SHORT (short stature, hyperextensibility of joints or hernia, ocular depression, Rieger anomaly, teething delay) syndrome.