MYH6 and pulmonary valve stenosis: The same patient also harbors a private mutation we reported previously (a 4395C>A transversion resulting in A1443D) in exon 30 of the MYH6 gene, which was transmitted by the mother.29 A 870G>A (G232R) mutation (Figure 1B) was also identified in exon 2 of a patient with pulmonary valve stenosis that was transmitted by the apparently unaffected mother.