Structural and functional insight into ADF/cofilin from Trypanosoma brucei.
Structural and functional insight into ADF/cofilin from Trypanosoma brucei.
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从布氏锥虫中了解 ADF/Cofilin 的结构和功能
DOI:
10.1371/journal.pone.0053639
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发表时间:
2013
期刊:
影响因子:
3.7
通讯作者:
Tu X
中科院分区:
文献类型:
--
作者:
Dai K;Liao S;Zhang J;Zhang X;Tu X
The ADF/cofilin family has been characterized as a group of actin-binding proteins critical for controlling the assembly of actin within the cells. In this study, the solution structure of the ADF/cofilin from Trypanosoma brucei (TbCof) was determined by NMR spectroscopy. TbCof adopts the conserved ADF/cofilin fold with a central β-sheet composed of six β-strands surrounded by five α-helices. Isothermal titration calorimetry experiments denoted a submicromolar affinity between TbCof and G-actin, and the affinity between TbCof and ADP-G-actin was five times higher than that between TbCof and ATP-G-actin at low ionic strength. The results obtained from electron microscopy and actin filament sedimentation assays showed that TbCof depolymerized but did not co-sediment with actin filaments and its ability of F-actin depolymerization was pH independent. Similar to actin, TbCof was distributed throughout the cytoplasm. All our data indicate a structurally and functionally conserved ADF/cofilin from Trypanosoma brucei.
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影响因子:
3.7
作者:
Liao, Shanhui;Wang, Tao;Tu, Xiaoming
通讯作者:
Tu, Xiaoming
影响因子:
5.8
作者:
Gouet, P;Courcelle, E;Métoz, F
通讯作者:
Métoz, F
影响因子:
0.9
作者:
Dai, Kun;Yuan, Guangfa;Tu, Xiaoming
通讯作者:
Tu, Xiaoming
DOI:
10.1083/jcb.136.6.1307
发表时间:
1997-03-24
期刊:
The Journal of cell biology
影响因子:
--
作者:
Carlier MF;Laurent V;Santolini J;Melki R;Didry D;Xia GX;Hong Y;Chua NH;Pantaloni D
通讯作者:
Pantaloni D
影响因子:
5.8
作者:
Larkin, M. A.;Blackshields, G.;Higgins, D. G.
通讯作者:
Higgins, D. G.