Iga Nephropathy 3, also known as iga nephropathy, susceptibility to, 3, is related to iga nephropathy 1 and iga nephropathy 2. An important gene associated with Iga Nephropathy 3 is SPRY2 (Sprouty RTK Signaling Antagonist 2). Affiliated tissues include kidney, and related phenotypes are hematuria and hypertension