Table 1.

Nontransmitted premutation carriers

SexAgeRepeat length
Shown are the repeat lengths and ages at sampling of the eight individuals identified with DM1 premutation alleles from whom intergenerational transmissions were not observed. Two patients had cataracts,
* but these were not of the characteristic DM1 type. Neither these two patients nor any of the others in this set had any other DM1 symptoms.
*M6039
M5148
*F4542
M3446
M6051
F3738
F7852
F4253