h1_bmp4_derived_mesendoderm_cultured_cells rs183296415 134715353 NKX6-2 chr10_134715000_134720000 chr10_134595000_134600000 h1_bmp4_derived_trophoblast_cultured_cells rs183296415 134715353 NKX6-2 chr10_134715000_134720000 chr10_134600000_134605000