Polycomb group protein expression during directed differentiation of KIND1 cells. (A) PRC1 gene transcript (RING1A, RING1B, BMI1and CBX2) expression in undifferentiated and Day 4 – Day 16. (B) Expression of PRC2 gene transcripts (EZH2, SUZ12, EED and JARID 2) in undifferentiated and Day 4 – Day 16. The expression is relative to their expression in undifferentiated KIND1 cells (set as 1). Error bars represent ± SEM, statistical significance represented as *(p < 0.05), **(p < 0.02).