Human induced pluripotent stem cell line XXMUFAi001-A generated from a patient harboring KCNH2 mutation (c. 2690 A>C).

Long QT syndrome type 2 (LQT2), caused by mutations in the KCNH2 gene, is an inherited ion channel disorder associated with sudden death in adolescents. In this study, we generated a patient-specific induced pluripotent stem cell (iPSC) line XXMUFAi001-A using non-integrative Sendai reprogramming technology from an individual carrying a heterozygous point mutation (c.2690 A>C) in KCNH2. XXMUFAi001-A cell line exhibited expression of pluripotency markers and demonstrated teratoma formation capability in vivo, as well as the potential to differentiate into all three germ layers. The establishment of XXMUFAi001-A is crucial for investigating the pathogenesis and drug screening of LQT2.