FRMD7 and congenital mesoblastic nephroma: Of the six loci, mutations in FRMD7 (OMIM 300628) have been shown to be responsible for NYS1, which might account for 22–35% of CMN (AlMoallem et al. 2015; Choi et al. 2018; Tarpey et al. 2006); while, genes responsible for the other five loci await identification.