Table 2.

Regulatory sequences demonstrated to drive Cre expression in mouse trophoblast cell lineages.

Regulatory sequencea	Cellular target(s)	References
Cyp19a1	All trophoblast lineages first detectable in extraembryonic ectoderm and ectoplacental cone structures	146
Chimeric Tpbpa/Ada enhancer	All trophoblast lineages	151
Krt5	All trophoblast lineages first detectable in the ectoplacental cone; visceral yolk sac	152
Tpbpa	Trophoblast progenitors in the ectoplacental cone that give rise to subsets of trophoblast giant cells, spongiotrophoblast, glycogen trophoblast cells	148
Prdm1	Trophoblast progenitors in the junctional zone, spongiotrophoblast, subsets of trophoblast giant cells, and glycogen trophoblast cells	149
Prl3d1	Trophoblast giant cells	150
Prl2c2	Trophoblast giant cells	150
Prl3b1	Placenta (specific cell types were not reported; would expect trophoblast giant cell expression)	153
Ctsq	Trophoblast giant cells of the labyrinth zone and lining channels in the junctional zone	155
Gcm1	Syncytiotrophoblast layer-II	147, 154

^aAll regulatory sequences are from the mouse except for human Cyp19a1.