Click here to close Hello! We notice that you are using Internet Explorer, which is not supported by Xenbase and may cause the site to display incorrectly. We suggest using a current version of Chrome, FireFox, or Safari.
XB-ART-60399
J Cell Biol 2019 Sep 02;21812:3912-3925. doi: 10.1083/jcb.201905040.
Show Gene links Show Anatomy links

Borealin-nucleosome interaction secures chromosome association of the chromosomal passenger complex.

Abad MA , Ruppert JG , Buzuk L , Wear M , Zou J , Webb KM , Kelly DA , Voigt P , Rappsilber J , Earnshaw WC , Jeyaprakash AA .


???displayArticle.abstract???
Chromosome association of the chromosomal passenger complex (CPC; consisting of Borealin, Survivin, INCENP, and the Aurora B kinase) is essential to achieve error-free chromosome segregation during cell division. Hence, understanding the mechanisms driving the chromosome association of the CPC is of paramount importance. Here using a multifaceted approach, we show that the CPC binds nucleosomes through a multivalent interaction predominantly involving Borealin. Strikingly, Survivin, previously suggested to target the CPC to centromeres, failed to bind nucleosomes on its own and requires Borealin and INCENP for its binding. Disrupting Borealin-nucleosome interactions excluded the CPC from chromosomes and caused chromosome congression defects. We also show that Borealin-mediated chromosome association of the CPC is critical for Haspin- and Bub1-mediated centromere enrichment of the CPC and works upstream of the latter. Our work thus establishes Borealin as a master regulator determining the chromosome association and function of the CPC.

???displayArticle.pubmedLink??? 31570499
???displayArticle.link??? J Cell Biol
???displayArticle.grants??? [+]

Genes referenced: birc5 bub1 cdca8 haspin incenp

External Resources: Proteomic dataset PXD012882 on PRIDE
          
          

References [+] :
Adams, INCENP binds the Aurora-related kinase AIRK2 and is required to target it to chromosomes, the central spindle and cleavage furrow. 2000, Pubmed, Xenbase