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Deprecated: Implicit conversion from float 217.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Nature 2014 ; 516 (7531): 349-54 Nephropedia Template TP
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AUTS2 confers gene activation to Polycomb group proteins in the CNS #MMPMID25519132
Gao Z; Lee P; Stafford JM; von Schimmelmann M; Schaefer A; Reinberg D
Nature 2014[Dec]; 516 (7531): 349-54 PMID25519132show ga
Naturally occurring variations of Polycomb Repressive Complex 1 (PRC1) comprise a core assembly of Polycomb group proteins and additional factors that include, surprisingly, Autism Susceptibility Candidate 2 (AUTS2). While AUTS2 is often disrupted in patients with neuronal disorders, the underlying mechanism is unclear. We investigated the role of AUTS2 as part of a previously identified PRC1 complex (PRC1-AUTS2), and in the context of neurodevelopment. In contrast to the canonical role of PRC1 in gene repression, PRC1-AUTS2 activates transcription. Biochemical studies demonstrated that the CK2 component of PRC1-AUTS2 thwarts PRC1 repressive activity while AUTS2-mediated recruitment of P300 leads to gene activation. ChIP-seq demonstrated that AUTS2 regulates neuronal gene expression through promoter association. Conditional targeting of Auts2 in the mouse central nervous system (CNS) leads to various developmental defects. These findings reveal a natural means of subverting PRC1 activity, linking key epigenetic modulators with neuronal functions and diseases.