A spontaneous duplication results in a greater than 33 kb insertion containing a second copy of exons 21, 22 and 23. This duplication introduces a frame shift and premature stop codon. Northern blot analysis confirmed the absence of transcript expression. (J:61563, J:73640, J:199245)
Legend:
cx: complex: > 1 genome feature ot: other: hemizygous, indeterminate,... (F): Female
(M): Male
N: normal phenotype
(#): related diseases count