Neutropenia, Severe Congenital, 4, Autosomal Recessive, also known as dursun syndrome, is related to severe congenital neutropenia 4 and g6pc3 deficiency. An important gene associated with Neutropenia, Severe Congenital, 4, Autosomal Recessive is G6PC3 (Glucose-6-Phosphatase Catalytic Subunit 3). Affiliated tissues include neutrophil and bone marrow, and related phenotypes are global developmental delay and hydronephrosis