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Insights into centromere DNA bending revealed by the cryo-EM structure of the core centromere binding factor 3 with Ndc10

DOI: 10.1016/j.celrep.2018.06.068 DOI Help

Authors: Wenjuan Zhang (Birkbeck College; University College London) , Natalya Lukoyanova (Birkbeck College) , Shomon Miah (Birkbeck College) , Jonathan Lucas (University College London) , Cara K. Vaughan (Birkbeck College; University of London)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Cell Reports , VOL 24 , PAGES 744 - 754

State: Published (Approved)
Published: July 2018
Diamond Proposal Number(s): 14704 , 15619

Open Access Open Access

Abstract: The centromere binding factor 3 (CBF3) complex binds the third centromere DNA element in organisms with point centromeres, such as S. cerevisiae. It is an essential complex for assembly of the kinetochore in these organisms, as it facilitates genetic centromere specification and allows association of all other kinetochore components. We determined high-resolution structures of the core complex of CBF3 alone and in association with a monomeric construct of Ndc10, using cryoelectron microscopy (cryo-EM). We identify the DNA-binding site of the complex and present a model in which CBF3 induces a tight bend in centromeric DNA, thus facilitating assembly of the centromeric nucleosome.

Subject Areas: Biology and Bio-materials

Diamond Offline Facilities: Electron Bio-Imaging Centre (eBIC)
Instruments: Krios II-Titan Krios II at Diamond