Distinct properties and functions of CTCF revealed by a rapidly inducible degron system oleh Jing Luan, Guanjue Xiang, Pablo Aurelio Gómez-García, Jacob M. Tome, Zhe Zhang, Marit W. Vermunt, Haoyue Zhang, Anran Huang, Cheryl A. Keller, Belinda M. Giardine, Yu Zhang, Yemin Lan, John T. Lis, Melike Lakadamyali, Ross C. Hardison, Gerd A. Blobel