Does microsecond sugar ring flexing encode 3D-shape and bioactivity in the heparanome?
Does microsecond sugar ring flexing encode 3D-shape and bioactivity in the heparanome?
复制标题
微秒糖环弯曲是否编码肝素组中的 3D 形状和生物活性?
DOI:
10.1021/bm400067g
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发表时间:
2013
影响因子:
6.2
通讯作者:
Sattelle BM
中科院分区:
文献类型:
--
作者:
Sattelle BM
The biological information encoded in carbohydrate sequences dwarfs that of proteins and nucleic acids. Deciphering structure–function relationships in heparin and heparan sulfate (the heparanome) is further compounded by extreme sequence diversity, experimental difficulties, and the computational cost of rigorous modeling. Here we perform unbiased microsecond dynamics simulations of 11 heparanome oligosaccharides (55 microseconds total) to investigate the effect of sequence on 3D-structure and to underpin a coarse-grained model that is consistent with long-time scale experimentally validated atomic motions in water. Pyranose ring flexing (puckering) in 2-O-sulfo-α-l-iduronic acid, which underlies heparin-mediated anticoagulation, was modulated by polymerization (chain position and adjacent residues), which is supported by previous experiments. Furthermore, in coarse-grained simulations, inclusion of puckering was essential to predict macroscopic hydrodynamic properties of heparan sulfate chains containing hundreds of monosaccharaides. Our structural findings and model enable rational molecular design, and we propose that, in the heparanome, puckering, polymer 3D-shape, and bioactivity are inextricably linked.
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影响因子:
3.1
作者:
Sattelle, Benedict M.;Shakeri, Javad;Roberts, Ian S.;Almond, Andrew
通讯作者:
Almond, Andrew
影响因子:
11.9
作者:
Liu H;Zhang Z;Linhardt RJ
通讯作者:
Linhardt RJ
影响因子:
3.3
作者:
Pavel Oborský;I. Tvaroška;B. Králová;V. Spiwok
通讯作者:
V. Spiwok
影响因子:
2.9
作者:
S. Sue;J. Brisson;S. C. Chang;W. N. Huang;S. C. Lee;H. Jarrell;W. Wu
通讯作者:
W. Wu
DOI:
10.1002/mrc.1270130606
发表时间:
1980-01-01
期刊:
ORGANIC MAGNETIC RESONANCE
影响因子:
--
作者:
ALTONA, C;HAASNOOT, CAG
通讯作者:
HAASNOOT, CAG