Lipid specificity of the immune effector perforin.

Lipid specificity of the immune effector perforin.
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DOI:
10.1039/d0fd00043d
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发表时间:
2021-12-24
影响因子:
3.4
通讯作者:
Hoogenboom BW
Hoogenboom BW
中科院分区:
化学2区
文献类型:
--
作者:
Hodel AW;Rudd-Schmidt JA;Trapani JA;Voskoboinik I;Hoogenboom BW

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Perforin is a pore forming protein used by cytotoxic T lymphocytes to remove cancerous or virus-infected cells during the immune response. During the response, the lymphocyte membrane becomes refractory to perforin function by accumulating densely ordered lipid rafts and externalizing negatively charged lipid species. The dense membrane packing lowers the capacity of perforin to bind, and the negatively charged lipids scavenge any residual protein before pore formation. Using atomic force microscopy on model membrane systems, we here provide insight into the molecular basis of perforin lipid specificity. Physical membrane properties play a determining role in defining the sensitivity of membranes to the immune effector perforin.
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