A stable analogue of glucose-dependent insulinotropic polypeptide, GIP(LysPAL16), enhances functional differentiation of mouse embryonic stem cells into cells expressing islet-specific genes and hormones. - Marenah,L.; MacCluskey,JT.; Abdel-Wahab,YH.; O’Harte,FP.; MacClenaghan,NH.; Flatt,PR. (Biol Chem, 2006)