Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Model illustrating why phosphorylated Ngn2, found when cdk kinase levels are high, favors progenitor maintenance. Conversely, dephosphorylation of Ngn2 that occurs when cdk levels drop and cdk inhibitors increase, favors differentiation. Taken from ref.7
