Dynamics of ATP-binding cassette contribute to allosteric control, nucleotide binding and energy transduction in ABC transporters.
Dynamics of ATP-binding cassette contribute to allosteric control, nucleotide binding and energy transduction in ABC transporters.
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ATP 结合盒的动力学有助于 ABC 转运蛋白的变构控制、核苷酸结合和能量转导。
DOI:
10.1016/j.jmb.2004.07.001
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发表时间:
2004
期刊:
影响因子:
--
通讯作者:
Palmer,ArthurG
中科院分区:
文献类型:
--
作者:
Wang,Chunyu;Karpowich,Nathan;Hunt,JohnF;Rance,Mark;Palmer,ArthurG
ATP-binding cassette (ABC) transporters move solutes across membranes and are associated with important diseases, including cystic fibrosis and multi-drug resistance. These molecular machines are energized by their charateristic ABC modules, molecular engines fuelled by ATP hydrolysis. A solution NMR study of a model ABC, Methanococcus jannaschii protein MJ1267, reveals that ADP-Mg binding alters the flexibilities of key ABC motifs and induces allosteric changes in conformational dynamics in the LivG insert, over 30Å away from the ATPase active site.15N spin relaxation data support a “selected-fit” model for nucleotide binding. Transitions between rigidity and flexibility in key motifs during the ATP hydrolysis cycle may be crucial to mechanochemical energy transduction in ABC transporters. The restriction of correlated protein motions is likely a central mechanism for allosteric communications. Comparison between dynamics data from NMR and X-ray crystallography reveals their overall consistency and complementarity.
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影响因子:
5.7
作者:
Evenäs, J;Malmendal, A;Akke, M
通讯作者:
Akke, M
DOI:
10.1073/pnas.98.4.1525
发表时间:
2001
影响因子:
11.1
作者:
Chen,J;Sharma,S;Quiocho,FA;Davidson,AL
通讯作者:
Davidson,AL
影响因子:
56.9
作者:
J. Riordan;J. Rommens;N. Alon;R. Rozmahel;Z. Grzelczak;J. Zieleński;N. Plavsic;Jia-Ling Chou
通讯作者:
J. Riordan;J. Rommens;N. Alon;R. Rozmahel;Z. Grzelczak;J. Zieleński;N. Plavsic;Jia-Ling Chou
DOI:
10.1038/nsb1094-657
发表时间:
1994
期刊:
Nature Structural Biology
影响因子:
--
作者:
L. Johnson
通讯作者:
L. Johnson
影响因子:
2.2
作者:
Trott, O;Palmer, AG
通讯作者:
Palmer, AG