Crenarchaeal chromatin proteins Cren7 and Sul7 compact DNA by inducing rigid bends.
Crenarchaeal chromatin proteins Cren7 and Sul7 compact DNA by inducing rigid bends.
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DOI:
10.1093/nar/gks1053
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发表时间:
2013-01-07
影响因子:
14.9
通讯作者:
Dame RT
中科院分区:
文献类型:
--
作者:
Driessen RP;Meng H;Suresh G;Shahapure R;Lanzani G;Priyakumar UD;White MF;Schiessel H;van Noort J;Dame RT
Archaeal chromatin proteins share molecular and functional similarities with both bacterial and eukaryotic chromatin proteins. These proteins play an important role in functionally organizing the genomic DNA into a compact nucleoid. Cren7 and Sul7 are two crenarchaeal nucleoid-associated proteins, which are structurally homologous, but not conserved at the sequence level. Co-crystal structures have shown that these two proteins induce a sharp bend on binding to DNA. In this study, we have investigated the architectural properties of these proteins using atomic force microscopy, molecular dynamics simulations and magnetic tweezers. We demonstrate that Cren7 and Sul7 both compact DNA molecules to a similar extent. Using a theoretical model, we quantify the number of individual proteins bound to the DNA as a function of protein concentration and show that forces up to 3.5 pN do not affect this binding. Moreover, we investigate the flexibility of the bending angle induced by Cren7 and Sul7 and show that the protein–DNA complexes differ in flexibility from analogous bacterial and eukaryotic DNA-bending proteins.
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影响因子:
64.5
作者:
Bustamante C;Cheng W;Mejia YX
通讯作者:
Mejia YX
DOI:
10.1007/978-90-481-3473-1_10
发表时间:
2010-01-01
期刊:
BACTERIAL CHROMATIN
影响因子:
--
作者:
Bell, Stephen D.;White, Malcolm F.
通讯作者:
White, Malcolm F.
影响因子:
14.9
作者:
Dame, RT;Wyman, C;Goosen, N
通讯作者:
Goosen, N
影响因子:
5.6
作者:
Holbrook, JA;Tsodikov, OV;Record, MT
通讯作者:
Record, MT
DOI:
10.1073/pnas.181029198
发表时间:
2001-09-11
影响因子:
11.1
作者:
Ali, BMJ;Amit, R;Stavans, J
通讯作者:
Stavans, J