New sensors for quantitative measurement of mitochondrial Zn(2+).
New sensors for quantitative measurement of mitochondrial Zn(2+).
复制标题
DOI:
10.1021/cb300171p
复制
发表时间:
2012-10-19
影响因子:
4
通讯作者:
Palmer, Amy E.
中科院分区:
文献类型:
--
作者:
Park, J. Genevieve;Qin, Yan;Galati, Domenico F.;Palmer, Amy E.
Zinc (Zn2+) homeostasis plays a vital role in cell function, and the dysregulation of intracellular Zn2+ is associated with mitochondrial dysfunction. Few tools exist to quantitatively monitor the buffered, free Zn2+ concentration in mitochondria of living cells ([Zn2+]mito). We have validated three high dynamic range, ratiometric, genetically encoded, fluorescent Zn2+ sensors that we have successfully used to precisely measure and monitor [Zn2+]mito in several cell types. Using one of these sensors, called mito-ZapCY1, we report observations that free Zn2+ is buffered at concentrations about 3 orders of magnitude lower in mitochondria than in the cytosol, and that HeLa cells expressing mito-ZapCY1 have an average [Zn2+]mito of 0.14 pM, which differs significantly from other cell types. These optimized mitochondrial Zn2+ sensors could improve our understanding of the relationship between Zn2+ homeostasis and mitochondrial function.
登录
查看更多内容
影响因子:
4.4
作者:
Dineley, KE;Richards, LL;Reynolds, IJ
通讯作者:
Reynolds, IJ
影响因子:
4
作者:
Piljic, Alen;de Diego, Inaki;Schultz, Carsten
通讯作者:
Schultz, Carsten
影响因子:
4.8
作者:
Jiang, DM;Sullivan, PG;Weiss, JH
通讯作者:
Weiss, JH
影响因子:
16.2
作者:
Bossy-Wetzel, E;Talantova, MV;Lipton, SA
通讯作者:
Lipton, SA
影响因子:
5.3
作者:
Malaiyandi, LM;Honick, AS;Reynolds, IJ
通讯作者:
Reynolds, IJ