RRC ID 35704
著者 Minamino M, Ishibashi M, Nakato R, Akiyama K, Tanaka H, Kato Y, Negishi L, Hirota T, Sutani T, Bando M, Shirahige K.
タイトル Esco1 Acetylates Cohesin via a Mechanism Different from That of Esco2.
ジャーナル Curr Biol
Abstract Sister chromatid cohesion is mediated by cohesin and is essential for accurate chromosome segregation. The cohesin subunits SMC1, SMC3, and Rad21 form a tripartite ring within which sister chromatids are thought to be entrapped. This event requires the acetylation of SMC3 and the association of sororin with cohesin by the acetyltransferases Esco1 and Esco2 in humans, but the functional mechanisms of these acetyltransferases remain elusive. Here, we showed that Esco1 requires Pds5, a cohesin regulatory subunit bound to Rad21, to form cohesion via SMC3 acetylation and the stabilization of the chromatin association of sororin, whereas Esco2 function was not affected by Pds5 depletion. Consistent with the functional link between Esco1 and Pds5, Pds5 interacted exclusively with Esco1, and this interaction was dependent on a unique and conserved Esco1 domain. Crucially, this interaction was essential for SMC3 acetylation and sister chromatid cohesion. Esco1 localized to cohesin localization sites on chromosomes throughout interphase in a manner that required the Esco1-Pds5 interaction, and it could acetylate SMC3 before and after DNA replication. These results indicate that Esco1 acetylates SMC3 via a mechanism different from that of Esco2. We propose that, by interacting with a unique domain of Esco1, Pds5 recruits Esco1 to chromatin-bound cohesin complexes to form cohesion. Furthermore, Esco1 acetylates SMC3 independently of DNA replication.
巻・号 25(13)
ページ 1694-706
公開日 2015-6-29
DOI 10.1016/j.cub.2015.05.017
PII S0960-9822(15)00591-6
PMID 26051894
MeSH Acetylation Acetyltransferases / metabolism* Amino Acid Sequence Cell Cycle Proteins / metabolism* Chondroitin Sulfate Proteoglycans / metabolism Chromatids / metabolism* Chromosomal Proteins, Non-Histone / metabolism* DNA Replication / physiology* HeLa Cells Humans Immunoblotting Immunoprecipitation Molecular Sequence Data Nuclear Proteins / genetics Nuclear Proteins / metabolism*
IF 9.601
引用数 38
WOS 分野 BIOCHEMISTRY & MOLECULAR BIOLOGY CELL BIOLOGY
リソース情報
遺伝子材料 CSII-CMV-MCS-IRES2-Venus (RDB04383) pCAG-HIVgp (RDB04394) pCMV-VSV-G-RSV-Rev (RDB04393).