Assertion: stem cell's level | /r/HasProperty | appropriate
Facets:
value: for generating an autoregulatory loop
type: PURPOSE
Source sentences:
text: Similar events may lead to activation of genes encoding the other endogenous pluripotency factors, and once levels of endogenous Oct4, Nanog, and Sox2 proteins are appropriate for generating an autoregulatory loop, the endogenous factors can then maintain the activated state of their own genes.