: / CENP-A recruiting complex / chromocenter / CENP-A containing chromatin assembly / cell communication / protein localization to chromosome, centromeric region / chromosome, centromeric region / Cajal body / Cyclin A/B1/B2 associated events during G2/M transition / Deposition of new CENPA-containing nucleosomes at the centromere ...: / CENP-A recruiting complex / chromocenter / CENP-A containing chromatin assembly / cell communication / protein localization to chromosome, centromeric region / chromosome, centromeric region / Cajal body / Cyclin A/B1/B2 associated events during G2/M transition / Deposition of new CENPA-containing nucleosomes at the centromere / chromosome segregation / protein-macromolecule adaptor activity / nuclear speck / cell division / chromatin / DNA binding / nucleoplasm / metal ion binding / identical protein binding / nucleus / cytosol 類似検索 - 分子機能
Mis18 domain / Mis18 domain profile. / SANT associated / KNL2-like / SANTA (SANT Associated) / Yippee/Mis18/Cereblon / Yippee zinc-binding/DNA-binding /Mis18, centromere assembly / SANT domain profile. / SANT domain / SANT SWI3, ADA2, N-CoR and TFIIIB'' DNA-binding domains ...Mis18 domain / Mis18 domain profile. / SANT associated / KNL2-like / SANTA (SANT Associated) / Yippee/Mis18/Cereblon / Yippee zinc-binding/DNA-binding /Mis18, centromere assembly / SANT domain profile. / SANT domain / SANT SWI3, ADA2, N-CoR and TFIIIB'' DNA-binding domains / SANT/Myb domain / Homeobox-like domain superfamily 類似検索 - ドメイン・相同性
Protein Mis18-beta / Mis18-binding protein 1 / Protein Mis18-alpha 類似検索 - 構成要素
ジャーナル: EMBO Rep / 年: 2024 タイトル: Structural basis for Mis18 complex assembly and its implications for centromere maintenance. 著者: Reshma Thamkachy / Bethan Medina-Pritchard / Sang Ho Park / Carla G Chiodi / Juan Zou / Maria de la Torre-Barranco / Kazuma Shimanaka / Maria Alba Abad / Cristina Gallego Páramo / Regina ...著者: Reshma Thamkachy / Bethan Medina-Pritchard / Sang Ho Park / Carla G Chiodi / Juan Zou / Maria de la Torre-Barranco / Kazuma Shimanaka / Maria Alba Abad / Cristina Gallego Páramo / Regina Feederle / Emilija Ruksenaite / Patrick Heun / Owen R Davies / Juri Rappsilber / Dina Schneidman-Duhovny / Uhn-Soo Cho / A Arockia Jeyaprakash / 要旨: The centromere, defined by the enrichment of CENP-A (a Histone H3 variant) containing nucleosomes, is a specialised chromosomal locus that acts as a microtubule attachment site. To preserve ...The centromere, defined by the enrichment of CENP-A (a Histone H3 variant) containing nucleosomes, is a specialised chromosomal locus that acts as a microtubule attachment site. To preserve centromere identity, CENP-A levels must be maintained through active CENP-A loading during the cell cycle. A central player mediating this process is the Mis18 complex (Mis18α, Mis18β and Mis18BP1), which recruits the CENP-A-specific chaperone HJURP to centromeres for CENP-A deposition. Here, using a multi-pronged approach, we characterise the structure of the Mis18 complex and show that multiple hetero- and homo-oligomeric interfaces facilitate the hetero-octameric Mis18 complex assembly composed of 4 Mis18α, 2 Mis18β and 2 Mis18BP1. Evaluation of structure-guided/separation-of-function mutants reveals structural determinants essential for cell cycle controlled Mis18 complex assembly and centromere maintenance. Our results provide new mechanistic insights on centromere maintenance, highlighting that while Mis18α can associate with centromeres and deposit CENP-A independently of Mis18β, the latter is indispensable for the optimal level of CENP-A loading required for preserving the centromere identity.