Unique X-linked familial FSGS with co-segregating heart block disorder is associated with a mutation in the NXF5 gene.
Esposito T, Lea RA, Maher BH, Moses D, Cox HC, Magliocca S, Angius A, Nyholt DR, Titus T, Kay T, et al. Hum Mol Genet. 2013 Sep 15; 22(18):3654-66. Epub 2013 May 16.