"the results together with previous data such as the development of Split-hand/foot malformation (SHFM) in Lrp6 knockout mice the presence of SHFM in two subjects with 19q13 deletions involving UBA2 and strong mouse Uba2 expression in the developing limb buds imply that LRP6 and UBA2 represent plausible candidate genes for SHFM."xsd:string