Holt-Oram syndrome is caused by mutations in TBXS, a member of the Brachyury (T) gene family. - Li,Q.Y.; Newbury-Ecob,R.A.; Terrett,J.A.; Wilson,D.l.; Curtis,A.R.; Yi,C.H.; Gebuhr,T.; Bullen,P.J.; Robson,S.C.; Strachan,T.; Bonnet,D.; Lyonnet,S.; et al. (Nat Genet, 1997)