Iga Nephropathy 2, also known as iga nephropathy, susceptibility to, 2, is related to iga nephropathy 1 and iga nephropathy 3. An important gene associated with Iga Nephropathy 2 is IGAN2 (IgA Nephropathy, Susceptibility To, 2). Affiliated tissues include kidney, and related phenotypes are arthralgia and hypertension