Atomic structure and handedness of the building block of a biological assembly.
Atomic structure and handedness of the building block of a biological assembly.
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生物组装构件的原子结构和旋手性
DOI:
10.1021/ja411362q
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发表时间:
2013
影响因子:
15
通讯作者:
A. Lange
中科院分区:
文献类型:
--
作者:
A. Loquet;B. Habenstein;V. Chevelkov;S. K. Vasa;K. Giller;S. Becker;A. Lange
Noncovalent supramolecular assemblies possess in general several unique subunit–subunit interfaces.The basic building block of such an assembly consists of several subunits and contains all unique interfaces. Atomic-resolution structures of monomeric subunits are typically accessed by crystallography or solution NMR and fitted into electron microscopy density maps. However, the structure of the intact building block in the assembled state remains unknown with this hybrid approach. Here, we present the solid-state NMR atomic structure of the building block of the type III secretion system needle. The building block structure consists of a homotetrameric subunit complex with three unique supramolecular interfaces. Side-chain positions at the interfaces were solved at atomic detail. The high-resolution structure reveals unambiguously the helical handedness of the assembly, determined to be right-handed for the type III secretion system needle.Additionally, the axial rise per subunit could be extracted from the tetramer structure and independently validated by mass-per-length measurements.
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影响因子:
18.3
作者:
Murray, Dylan T.;DAS, NABANITA;CROSS, TIMOTHY A.
通讯作者:
CROSS, TIMOTHY A.
影响因子:
0.7
作者:
Antoine Loquet;Birgit Habenstein;Jean;S. Becker;A. Lange
通讯作者:
A. Lange
影响因子:
64.8
作者:
Fujii, Takashi;Iwane, Atsuko H.;Namba, Keiichi
通讯作者:
Namba, Keiichi
影响因子:
18.3
作者:
Yan, Si;Suiter, Christopher L.;Hou, Guangjin;Zhang, Huilan;Polenova, Tatyana
通讯作者:
Polenova, Tatyana
影响因子:
5.9
作者:
Hryc, Corey F.;Chen, Dong-Hua;Chiu, Wah
通讯作者:
Chiu, Wah