Hematuria, Benign Familial, 1, also known as benign familial hematuria, is related to alport syndrome and alport syndrome 2, autosomal recessive. An important gene associated with Hematuria, Benign Familial, 1 is COL4A4 (Collagen Type IV Alpha 4 Chain), and among its related pathways/superpathways are ERK Signaling and Integrin Pathway. The drugs Enalapril and Enalaprilat have been mentioned in the context of this disorder. Affiliated tissues include kidney and liver, and related phenotypes are hematuria and thin glomerular basement membrane