Targeting the motor regulator Klar to lipid droplets.

Targeting the motor regulator Klar to lipid droplets.
复制标题

DOI:
10.1186/1471-2121-12-9
复制
发表时间:
2011-02-24
期刊:
影响因子:
--
通讯作者:
Welte MA
Welte MA
中科院分区:
生物3区
文献类型:
--
作者:
Yu YV;Li Z;Rizzo NP;Einstein J;Welte MA

文献摘要

参考文献

被引文献

相似文献

在果蝇中,运输调节剂Klar显示组织特异性定位:在光感受器中,它在核膜上丰富;在早期胚胎中,它不在核中,而是存在于脂滴上。Klar的差异靶向似乎是由于同种型变异。特别地,已经提出液滴靶向通过变体C-末端区域(LD结构域)发生。虽然LD结构域对于培养细胞中的液滴靶向是必要的和足够的,但缺乏特异性试剂使得以前无法分析其在体内的作用。在这里,我们描述了一个新的突变等位基因的klar与病变,特别是在LD域,这种病变废除了两个液滴本地化的Klar和Klar的能力,以调节液滴运动。它不会破坏Klar在光感受器中的核迁移功能。使用GFP-LD融合,我们表明,LD结构域不仅是必要的,但也足以液滴靶向在体内,它介导的液滴靶向在胚胎中,卵巢中,并在一些体细胞组织。我们的分析表明,液滴靶向Klar发生通过顺式作用序列,并产生一个新的工具,用于监测果蝇活组织中的脂滴。
In Drosophila, the transport regulator Klar displays tissue-specific localization: In photoreceptors, it is abundant on the nuclear envelope; in early embryos, it is absent from nuclei, but instead present on lipid droplets. Differential targeting of Klar appears to be due to isoform variation. Droplet targeting, in particular, has been suggested to occur via a variant C-terminal region, the LD domain. Although the LD domain is necessary and sufficient for droplet targeting in cultured cells, lack of specific reagents had made it previously impossible to analyze its role in vivo. Here we describe a new mutant allele of klar with a lesion specifically in the LD domain; this lesion abolishes both droplet localization of Klar and the ability of Klar to regulate droplet motion. It does not disrupt Klar's function for nuclear migration in photoreceptors. Using a GFP-LD fusion, we show that the LD domain is not only necessary but also sufficient for droplet targeting in vivo; it mediates droplet targeting in embryos, in ovaries, and in a number of somatic tissues. Our analysis demonstrates that droplet targeting of Klar occurs via a cis-acting sequence and generates a new tool for monitoring lipid droplets in living tissues of Drosophila.
Dynein介导的体内货物运输。开关控制旅行距离。
DOI: 10.1083/jcb.148.5.945
发表时间: 2000-03-06
影响因子: 7.8
作者:
Gross, S P;Welte, M A;Block, S M;Wieschaus, E F
通讯作者: Wieschaus, E F
DOI: 10.1371/journal.pone.0015264
发表时间: 2010-12-17
期刊: PloS one
影响因子: 3.7
作者:
Hain D;Bettencourt BR;Okamura K;Csorba T;Meyer W;Jin Z;Biggerstaff J;Siomi H;Hutvagner G;Lai EC;Welte M;Müller HA
通讯作者: Müller HA
DOI: 10.1534/genetics.104.028662
发表时间: 2004-11-01
期刊: GENETICS
影响因子: 3.3
作者:
Fischer, JA;Acosta, S;Hook, J
通讯作者: Hook, J
DOI: 10.1016/j.bbalip.2009.04.002
发表时间: 2009-06
影响因子: 4.8
作者:
Bickel, Perry E.;Tansey, John T.;Welte, Michael A.
通讯作者: Welte, Michael A.
DOI: 10.1242/jcs.02941
发表时间: 2006-06-01
影响因子: 4
作者:
Andersson, Linda;Bostrom, Pontus;Olofsson, Sven-Olof
通讯作者: Olofsson, Sven-Olof