CTCF chromatin residence time controls three-dimensional genome organization, gene expression and DNA methylation in pluripotent cells

Autor: Joachim Boers, Frank Sleutels, Enrique Vidal, Rainer Renkawitz, Frank Grosveld, Ruben Boers, Niels Galjart, Mirjam C G N van den Hout, Silvia C Hernandez, Wiggert A. van Cappellen, Sarra Merzouk, Adriaan B Houtsmuller, Gregoire Stik, Marek Bartkuhn, Michael van der Reijden, Joost Gribnau, Thomas Graf, Zeliha Ozgur, Sreya Basu, Ralph Stadhouders, Widia Soochit, Bart Geverts, Wilfred F. J. van IJcken
Přispěvatelé: Cell biology, Developmental Biology, Pathology, Pulmonary Medicine
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Dev Cell
Nature Cell Biology, 23(8), 881-893. Nature Publishing Group
ISSN: 1465-7392
Popis: The 11 zinc finger (ZF) protein CTCF regulates topologically associating domain formation and transcription through selective binding to thousands of genomic sites. Here, we replaced endogenous CTCF in mouse embryonic stem cells with green-fluorescent-protein-tagged wild-type or mutant proteins lacking individual ZFs to identify additional determinants of CTCF positioning and function. While ZF1 and ZF8–ZF11 are not essential for cell survival, ZF8 deletion strikingly increases the DNA binding off-rate of mutant CTCF, resulting in reduced CTCF chromatin residence time. Loss of ZF8 results in widespread weakening of topologically associating domains, aberrant gene expression and increased genome-wide DNA methylation. Thus, important chromatin-templated processes rely on accurate CTCF chromatin residence time, which we propose depends on local sequence and chromatin context as well as global CTCF protein concentration.
Databáze: OpenAIRE