SMN1 and spinal muscular atrophy, type 1: In our initial report, we generated iPSCs from fibroblasts of a type 1 spinal muscular atrophy (SMA1) patient (Coriell repository identifier: GM03813; iPSC line UW13iSMA-i.6, referred here as 13iSMA) and his unaffected mother (GM03814; iPSC line UW14iCTR-i.2, referred here as 14iCTR) [31].