C1orf54 and spontaneous coronary artery dissection: Our previous genomic studies of familial and sporadic SCAD revealed TLN1, FBN1, LRP1, PHACTR1, ECM1, ADAMTSL4, LINC00310, C1orf54, MRPS21, EDN1, and AFAP1 as candidate genes for disease susceptibility [4,5,6].