Disease specific iPS cell line derived from a patient : Down syndrome, trisomy 21. HPS4270, HPS4271, HPS4272, HPS4273 were derived from the same patient. HPS4270 (ダウン症候群のヒト由来iPS細胞、核型 47,XY,+21) から、母親由来21番染色体の1本 (M2) を消去した、誘導型ダイソミー21 iPS細胞 (核型 46,XY) 。 Induced disomy 21 iPS cell line [46,XY] by elimination of the paternal origin of the chromosome 21 (M2) from HPS4270 (Disease specific iPS cell line derived from a person with Down syndrome, [47,XY,+21]) HPS4273 疾患特異的iPS細胞株。ダウン症候群患者由来。母親由来21番染色体2本のうち1本を消去。HPS4270, HPS4271, HPS4272, HPS4273は同一人由来。Feeder free培養。緩慢冷却法保存。 HPS4273