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research
DNA content of a functioning chicken kinetochore
Authors
A Alonso
AE Barry
+38 more
AF Pluta
AP Joglekar
BA Sullivan
BR Brinkley
CM Wade
D Gerlich
D Sart du
D Varma
DR Foltz
FG Westhorpe
H Maiato
H Saitoh
IM Cheeseman
J Dekker
JH Hegemann
K Jaqaman
LL Sullivan
LS Burrack
MD Blower
N Naumova
O Capozzi
OJ Marshall
P Luykx
P Vagnarelli
Paola Vagnarelli
PT Jokelainen
R Saffery
SA Ribeiro
SA Ribeiro
Susana Abreu Ribeiro
T Fukagawa
T Hori
WC Earnshaw
WC Earnshaw
WH Shang
WH Shang
William C. Earnshaw
X Wan
Publication date
1 January 2014
Publisher
'Springer Science and Business Media LLC'
Doi
View
on
PubMed
Abstract
© The Author(s) 2014. In order to understand the three-dimensional structure of the functional kinetochore in vertebrates, we require a complete list and stoichiometry for the protein components of the kinetochore, which can be provided by genetic and proteomic experiments. We also need to know how the chromatin-containing CENP-A, which makes up the structural foundation for the kinetochore, is folded, and how much of that DNA is involved in assembling the kinetochore. In this MS, we demonstrate that functioning metaphase kinetochores in chicken DT40 cells contain roughly 50 kb of DNA, an amount that corresponds extremely closely to the length of chromosomal DNA associated with CENP-A in ChIP-seq experiments. Thus, during kinetochore assembly, CENP-A chromatin is compacted into the inner kinetochore plate without including significant amounts of flanking pericentromeric heterochromatin. © 2014 The Author(s).Wellcome Trust [grant number 073915]; Wellcome Trust Centre for Cell Biology (core grant numbers 077707 and 092076); Darwin Trust of Edinburg
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info:doi/10.1007%2Fs10577-014-...
Last time updated on 01/04/2019