This technology includes three cell lines of dopaminergic neurons derived from human induced pluripotent stem cell (iPSC) line BC1, human iPSG line X1 and human embryonic stem cell (hESC) line H14 to be utilized in neurology research. These cell lines will be used for to study the biology of brain development and may also be used to test different characterization and differentiation assays. The dopaminergic neurons and/or their derivatives may also be used as controls in studies to screen for small molecules to change cell fate and/or to alleviate the phenotypes of various diseases.