Interestingly, bacterial artificial chromosome (BAC) transgenic mice overexpressing human TBX1 and three other transgenes, had similar malformations as VCFS/DGS patients.
We identified three mutations of TBX1 in two unrelated patients without the 22q11.2 deletion-one with sporadic conotruncal anomaly face syndrome/velocardiofacial syndrome and one with sporadic DiGeorge's syndrome-and in three patients from a family with conotruncal anomaly face syndrome/velocardiofacial syndrome.
We identified three mutations of TBX1 in two unrelated patients without the 22q11.2 deletion-one with sporadic conotruncal anomaly face syndrome/velocardiofacial syndrome and one with sporadic DiGeorge's syndrome-and in three patients from a family with conotruncal anomaly face syndrome/velocardiofacial syndrome.
We identified three mutations of TBX1 in two unrelated patients without the 22q11.2 deletion-one with sporadic conotruncal anomaly face syndrome/velocardiofacial syndrome and one with sporadic DiGeorge's syndrome-and in three patients from a family with conotruncal anomaly face syndrome/velocardiofacial syndrome.