Symptoms of PNP Gene Immunodeficiency due to Purine Nucleoside Phosphorylase Deficiency Purine Nucleoside Phosphorylase (PNP) deficiency is a rare genetic disorder that affects the immune system, leading to severe immunodeficiency. It is caused by mutations in the PNP gene, which plays a crucial role in the breakdown of certain molecules in the body. This deficiency […]
