Steven Ingersoll,Abby Trouth, J. Carlos Angel, Xinlong Luo, Axel Espinoza, Joey Wen, Chengjie Zhu, Joseph Tucker, Kalkidan Astatike, Christopher J. Phiel, Hatim Sabaawy, Tatiana G. Kutateladze, Tao P. Wu, Tingting Yao, Chao Lu, Srinivas Ramachandran,and Xiaojun Ren published an article in Science Direct titled, "Self-clustering of three CBX2 molecules drives PRC2 to promote facultative heterochromatinization of Polycomb target genes".