POU5F1 and embryonal carcinoma: Among them, 69.2% (332/480) were knownOct4-expressing (+Oct4) biologicalcontexts—most commonly, undifferentiated ESCs (Niwa et al., 2000), primordial germ cells(Kehler et al., 2004),induced pluripotent stem cells (Wernig etal., 2007) and embryonic carcinomas (Wang and Schultz, 1996)—covering 96.0% (332/346) ofall +Oct4 samples in the compendium.