Condensin confers the longitudinal rigidity of chromosomes.

Condensin confers the longitudinal rigidity of chromosomes.
复制标题

DOI:
10.1038/ncb3167
复制
发表时间:
2015-06
影响因子:
21.3
通讯作者:
Nasmyth, Kim
Nasmyth, Kim
中科院分区:
生物学1区
文献类型:
--
作者:
Houlard, Martin;Godwin, Jonathan;Metson, Jean;Lee, Jibak;Hirano, Tatsuya;Nasmyth, Kim

文献摘要

参考文献

被引文献

相似文献

除了染色单体间的凝聚力,有丝分裂和减数分裂的染色单体必须有三个物理特性:压缩成“线程”大致共线与他们的DNA序列,染色单体内凝聚力决定他们的刚性,和机制,以促进姐妹染色单体解开。染色体生物学中的一个基本问题是,是否一个单一的分子过程解释了所有三个特征。人们普遍认为,一对Smc-Kleisin复合物称为凝聚素I和II促进姐妹染色单体解开,但它们是否也赋予线程形成或纵向刚度是有争议的,或者从来没有直接解决。我们在这里表明,凝聚素II(β-Kleisin)在小鼠卵母细胞减数分裂I的所有三个过程中具有重要作用,其功能与凝聚素I(γ-Kleisin)重叠,否则是多余的。当缩合蛋白被TEV裂解失活时,预先组装的减数分裂二价体就会解体,证明它实际上是将染色质纤维固定在一起。
In addition to inter-chromatid cohesion, mitotic and meiotic chromatids must have three physical properties: compaction into ‘threads’ roughly co-linear with their DNA sequence, intra-chromatid cohesion determining their rigidity, and a mechanism to promote sister chromatid disentanglement. A fundamental issue in chromosome biology is whether a single molecular process accounts for all three features. There is universal agreement that a pair of Smc–kleisin complexes called condensin I and II facilitate sister chromatid disentanglement, but whether they also confer thread formation or longitudinal rigidity is either controversial or has never been directly addressed respectively. We show here that condensin II (beta-kleisin) has an essential role in all three processes during meiosis I in mouse oocytes and that its function overlaps with that of condensin I (gamma-kleisin), which is otherwise redundant. Pre-assembled meiotic bivalents unravel when condensin is inactivated by TEV cleavage, proving that it actually holds chromatin fibres together.
DOI: 10.1016/0014-4827(88)90325-4
发表时间: 1988-06-01
影响因子: 3.7
作者:
CREMER, T;TESIN, D;MANUELIDIS, L
通讯作者: MANUELIDIS, L
DOI: 10.1091/mbc.11.4.1293
发表时间: 2000-04-01
影响因子: 3.3
作者:
Lavoie, BD;Tuffo, KM;Holm, C
通讯作者: Holm, C
DOI: 10.1016/j.devcel.2013.10.018
发表时间: 2013-11-25
期刊: DEVELOPMENTAL CELL
影响因子: 11.8
作者:
Cuyien, Sara;Metz, Jutta;Haering, Christian H.
通讯作者: Haering, Christian H.
DOI: 10.1038/ncb2018
发表时间: 2010-02
影响因子: 21.3
作者:
Oliveira RA;Hamilton RS;Pauli A;Davis I;Nasmyth K
通讯作者: Nasmyth K
DOI: 10.1038/nsmb.2488
发表时间: 2013-03-01
影响因子: 16.8
作者:
Buermann, Frank;Shin, Ho-Chul;Gruber, Stephan
通讯作者: Gruber, Stephan