A superfolder variant of pH-sensitive pHluorin for in vivo pH measurements in the endoplasmic reticulum.

A superfolder variant of pH-sensitive pHluorin for in vivo pH measurements in the endoplasmic reticulum.
复制标题

DOI:
10.1038/s41598-018-30367-z
复制
发表时间:
2018-08-10
期刊:
影响因子:
4.6
通讯作者:
Boles E
Boles E
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Reifenrath M;Boles E

文献摘要

参考文献

被引文献

相似文献

许多细胞过程是通过pH调节的,保持不同细胞器的pH对细胞生存至关重要。一种对pH敏感的绿色荧光蛋白突变体,即所谓的PHluorin,已被证明是研究体内细胞质、线粒体和其他细胞器的pH的有价值的工具。我们发现,内质网(ER)靶向的PHluorin在酵母中的荧光强度很低,几乎不表现出对pH的敏感性,这可能是由于ER在氧化环境中的错误折叠所致。因此,我们开发了一种PHLOORIN的超文件夹变体,使我们能够在体内监测酿酒酵母内质网和胞浆中的pH变化。超折叠PHluorin变异体可能在不同生物的细胞中发挥功能,以及在源自分泌途径的额外隔室中发挥作用,如高尔基体和液泡前隔室,因此具有广泛的未来可能的应用。
Many cellular processes are regulated via pH, and maintaining the pH of different organelles is crucial for cell survival. A pH-sensitive GFP variant, the so-called pHluorin, has proven to be a valuable tool to study the pH of the cytosol, mitochondria and other organelles in vivo. We found that the fluorescence intensity of Endoplasmic Reticulum (ER)-targeted pHluorin in the yeast Saccharomyces cerevisiae was very low and barely showed pH sensitivity, probably due to misfolding in the oxidative environment of the ER. We therefore developed a superfolder variant of pHluorin which enabled us to monitor pH changes in the ER and the cytosol of S. cerevisiae in vivo. The superfolder pHluorin variant is likely to be functional in cells of different organisms as well as in additional compartments that originate from the secretory pathway like the Golgi apparatus and pre-vacuolar compartments, and therefore has a broad range of possible future applications.
DOI: 10.1074/jbc.m313245200
发表时间: 2004-03-26
影响因子: 4.8
作者:
Appenzeller-Herzog, C;Roche, AC;Hauri, HP
通讯作者: Hauri, HP
DOI: 10.1038/nprot.2007.13
发表时间: 2007-01-01
期刊: NATURE PROTOCOLS
影响因子: 14.8
作者:
Gietz, R. Daniel;Schiestl, Robert H.
通讯作者: Schiestl, Robert H.
DOI: 10.1016/0042-6822(92)91187-y
发表时间: 1992-09-01
期刊: VIROLOGY
影响因子: 3.7
作者:
GRAMBAS, S;HAY, AJ
通讯作者: HAY, AJ
DOI: 10.1074/jbc.m710470200
发表时间: 2008-07-18
影响因子: 4.8
作者:
Martinez-Munoz, Gloria A.;Kane, Patricia
通讯作者: Kane, Patricia
DOI: 10.1074/jbc.m109003200
发表时间: 2001-12-28
影响因子: 4.8
作者:
Jankowski, A;Kim, JH;Grinstein, S
通讯作者: Grinstein, S