Ho Lena, Crabtree Gerald R
Program in Immunology, Stanford University School of Medicine, Stanford, CA 94305, USA.
Cell Stem Cell. 2008 Dec 4;3(6):577-8. doi: 10.1016/j.stem.2008.11.007.
Ezh2, the methyltransferase within Polycomb Repressive II Complexes, was thought to be essential for all H3K27me3 marks in embryonic stem cells (ESCs). Recently in Molecular Cell, Shen and colleagues (2008) revealed that EZH2 is dispensable for ESC derivation and self-renewal, and that EZH1 may unexpectedly compensate for its loss.
Ezh2是多梳抑制复合物II中的甲基转移酶,曾被认为对胚胎干细胞(ESC)中所有H3K27me3标记至关重要。最近在《分子细胞》杂志上,沈及其同事(2008年)发现,EZH2对于ESC的衍生和自我更新并非必需,而且EZH1可能意外地补偿了其缺失。