Outer membrane protein folding from an energy landscape perspective.

Outer membrane protein folding from an energy landscape perspective.
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DOI:
10.1186/s12915-017-0464-5
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发表时间:
2017-12-21
期刊:
影响因子:
5.4
通讯作者:
Radford SE
Radford SE
中科院分区:
生物学2区
文献类型:
--
作者:
Schiffrin B;Brockwell DJ;Radford SE

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细胞被膜对于革兰氏阴性细菌的生存至关重要。这种特殊的膜富含外膜蛋白 (OMP),具有多种功能。 OMP 如何融入这个拥挤的环境仍然是一个悬而未决的问题。在这里,我们回顾了目前关于 OMP 体外折叠机制的知识,并讨论了折叠到稳定天然状态的需要如何塑造了它们的折叠能量景观。我们还强调了分子伴侣和 β-桶组装机制 (BAM) 在协助体内 OMP 折叠中的作用,并讨论了这种令人着迷的机制可能催化 OMP 折叠的机制。
The cell envelope is essential for the survival of Gram-negative bacteria. This specialised membrane is densely packed with outer membrane proteins (OMPs), which perform a variety of functions. How OMPs fold into this crowded environment remains an open question. Here, we review current knowledge about OMP folding mechanisms in vitro and discuss how the need to fold to a stable native state has shaped their folding energy landscapes. We also highlight the role of chaperones and the β-barrel assembly machinery (BAM) in assisting OMP folding in vivo and discuss proposed mechanisms by which this fascinating machinery may catalyse OMP folding.
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