Fluorescent in situ hybridization of mitochondrial DNA and RNA.

Fluorescent in situ hybridization of mitochondrial DNA and RNA.
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线粒体 DNA 和 RNA 的荧光原位杂交。

DOI:
10.18388/abp.2010_2425
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发表时间:
2010
影响因子:
1.7
通讯作者:
P. Ježek
P. Ježek
中科院分区:
生物学4区
文献类型:
--
作者:
L. Alán;J. Zelenka;J. Ježek;A. Dlasková;P. Ježek

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为了揭示线粒体中的核酸定位,我们设计了针对以下的分子信标荧光探针:i)与ND 5线粒体DNA(mtDNA)基因互补的轻链(也与相应的mRNA退火); ii)置换(D)环7S DNA(也与平行的重链mtDNA和相应的轻链转录物退火); iii)被轻链启动子小RNA置换的近端D环重链。共聚焦显微镜显示ND 5探针传播(其他探针)在线粒体网状小管,但核糖核酸酶A治疗后,所有的探针轮廓mtDNA类核定位。DNA酶I将信号传播到线粒体小管上。未来的应用进行了讨论。
To reveal nucleic acid localization in mitochondria, we designed molecular beacon fluorescent probes against: i) the light strand complementary to ND5 mitochondrial DNA (mtDNA) gene (annealing also to corresponding mRNA); ii) displacement (D) loop 7S DNA (annealing also to parallel heavy strand mtDNA and corresponding light strand transcript); iii) the proximal D-loop heavy strand displaced by the light strand promoter minor RNA. Confocal microscopy demonstrated ND5 probe spreading (less for other probes) in mitochondrial reticulum tubules but upon RNase A treatment all probes contoured mtDNA nucleoid localization. DNase I spread the signal over mitochondrial tubules. Future applications are discussed.
DOI: 10.1117/1.2011402
发表时间: 2005-07-01
影响因子: 3.5
作者:
Santangelo, PJ;Nitin, N;Bao, G
通讯作者: Bao, G