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Bend family proteins mark chromatin boundaries and synergistically promote early germ cell differentiation

Protein Cell. 2021-11; 
Guang Shi, Yaofu Bai, Xiya Zhang, Junfeng Su, Junjie Pang, Quanyuan He, Pengguihang Zeng, Junjun Ding, Yuanyan Xiong, Jingran Zhang, Jingwen Wang, Dan Liu, Wenbin Ma, Junjiu Huang, Zhou Songyang
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摘要

Understanding the regulatory networks for germ cell fate specification is necessary to developing strategies for improving the efficiency of germ cell production in vitro. In this study, we developed a coupled screening strategy that took advantage of an arrayed bi-molecular fluorescence complementation (BiFC) platform for protein-protein interaction screens and epiblast-like cell (EpiLC)-induction assays using reporter mouse embryonic stem cells (mESCs). Investigation of candidate interaction partners of core human pluripotent factors OCT4, NANOG, KLF4 and SOX2 in EpiLC differentiation assays identified novel primordial germ cell (PGC)-inducing factors including BEN-domain (BEND/Bend) family members. Through R... More

关键词

Bend5 and Bend4, chromatin organization, early development, embryonic stem cell, self-renewal and differentiation