pHmScarlet is a pH-sensitive red fluorescent protein to monitor exocytosis docking and fusion steps.
pHmScarlet is a pH-sensitive red fluorescent protein to monitor exocytosis docking and fusion steps.
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pHmScarlet 是一种 pH 敏感的红色荧光蛋白,用于监测胞吐作用对接和融合步骤
DOI:
10.1038/s41467-021-21666-7
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发表时间:
2021-03-03
影响因子:
16.6
通讯作者:
Xu P
中科院分区:
文献类型:
--
作者:
Liu A;Huang X;He W;Xue F;Yang Y;Liu J;Chen L;Yuan L;Xu P
pH-sensitive fluorescent proteins (FPs) are highly advantageous for the non-invasive monitoring of exocytosis events. Superecliptic pHluorin (SEP), a green pH-sensitive FP, has been widely used for imaging single-vesicle exocytosis. However, the docking step cannot be visualized using this FP, since the fluorescence signal inside vesicles is too low to be observed during docking process. Among the available red pH-sensitive FPs, none is comparable to SEP for practical applications due to unoptimized pH-sensitivity and fluorescence brightness or severe photochromic behavior. In this study, we engineer a bright and photostable red pH-sensitive FP, named pHmScarlet, which compared to other red FPs has higher pH sensitivity and enables the simultaneous detection of vesicle docking and fusion. pHmScarlet can also be combined with SEP for dual-color imaging of two individual secretory events. Furthermore, although the emission wavelength of pHmScarlet is red-shifted compared to that of SEP, its spatial resolution is high enough to show the ring structure of vesicle fusion pores using Hessian structured illumination microscopy (Hessian-SIM).
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影响因子:
--
作者:
Gonzalez-Gonzalez, Inmaculada M.;Jaskolski, Frederic;Goldberg, Yves;Ashby, Michael C.;Henley, Jeremy M.
通讯作者:
Henley, Jeremy M.
影响因子:
2
作者:
Weisenburger, Siegfried;Sandoghdar, Vahid
通讯作者:
Sandoghdar, Vahid
影响因子:
7.8
作者:
Schmoranzer, J;Goulian, M;Axelrod, D;Simon, S M
通讯作者:
Simon, S M
影响因子:
48
作者:
Cranfill PJ;Sell BR;Baird MA;Allen JR;Lavagnino Z;de Gruiter HM;Kremers GJ;Davidson MW;Ustione A;Piston DW
通讯作者:
Piston DW
影响因子:
46.9
作者:
Huang, Xiaoshuai;Fan, Junchao;Chen, Liangyi
通讯作者:
Chen, Liangyi