12 Kopp Kopp JB JB Smith Smith MW MW Nelson Nelson GW GW Johnson Johnson RC RC Freedman Freedman BI BI Bowden Bowden DW DW MYH9 is a major-effect risk gene for focal segmental glomerulosclerosis MYH9 is a major-effect risk gene for focal segmental glomerulosclerosis Nat Genet. Here, MYH9 is linked to focal segmental glomerulosclerosis.