mRNA trafficking in fungi

mRNA trafficking in fungi
复制标题

真菌中的 mRNA 运输

DOI:
--
复制
发表时间:
2007
期刊:
Zeitschrift für Induktive Abstammungs- und Vererbungslehre
影响因子:
--
通讯作者:
M. Feldbrügge
M. Feldbrügge
中科院分区:
--
文献类型:
--
作者:
K. Zarnack;M. Feldbrügge

文献摘要

参考文献

被引文献

相似文献

真菌生长取决于大分子沿着肌动蛋白和/或微管细胞骨架的主动转运。因此,分子货物如蛋白质、脂质和mRNA被靶向至限定的亚细胞区域。mRNA的主动转运和定位介导了定位翻译,使得蛋白质合成发生在需要蛋白质功能的地方。在酿酒酵母中,肌动球蛋白依赖的mRNA运输参与极性生长、不对称细胞分裂、膜蛋白的靶向和线粒体蛋白的输入。最好理解的例子是ASH 1 mRNA运输到初始子细胞的远端。顺式作用RNA序列被RNA结合蛋白She 2 p识别,该蛋白通过接头She 3 p连接到分子马达Myo 4p。在子细胞两极的局部翻译导致Ash 1 p主要在子细胞的细胞核中积累,在那里这种转录因子抑制交配型转换。最近,它也表明,肌动球蛋白依赖的ASH 1 mRNA运输指导尖端细胞特异性基因表达的细丝的人类病原体白色念珠菌。此外,在植物病原体玉米黑粉菌微管依赖穿梭的RNA结合蛋白Rrm 4是必不可少的,以确定轴的极性在感染丝。因此,mRNA运输似乎是真菌极性生长所普遍需要的。
Fungal growth depends on active transport of macromolecules along the actin and/or microtubule cytoskeleton. Thereby, molecular cargo such as proteins, lipids, and mRNAs is targeted to defined subcellular regions. Active transport and localisation of mRNAs mediate localised translation so that protein synthesis occurs where protein function is required. In Saccharomyces cerevisiae, actomyosin-dependent mRNA trafficking participates in polar growth, asymmetric cell division, targeting of membrane proteins and import of mitochondrial proteins. The best-understood example is transport of ASH1 mRNA to the distal pole of the incipient daughter cell. cis-acting RNA sequences are recognised by the RNA-binding protein She2p that is connected via the adaptor She3p to the molecular motor Myo4p. Local translation at the poles of daughter cells causes Ash1p to accumulate predominantly in nuclei of daughter cells, where this transcription factor inhibits mating-type switching. Recently, it was also shown that actomyosin-dependent ASH1 mRNA transport directs tip cell-specific gene expression in filaments of the human pathogen Candida albicans. Furthermore, in the plant pathogen Ustilago maydis microtubule-dependent shuttling of the RNA-binding protein Rrm4 is essential to determine the axis of polarity in infectious filaments. Thus, mRNA trafficking appears to be universally required for polar growth of fungi.
DOI: 10.1016/j.ymeth.2005.07.018
发表时间: 2005-12-01
期刊: METHODS
影响因子: 4.8
作者:
Ule, J;Jensen, K;Darnell, RB
通讯作者: Darnell, RB
DOI: 10.1101/gad.1189004
发表时间: 2004-06-15
影响因子: 10.5
作者:
Gu, W;Deng, YF;Singer, RH
通讯作者: Singer, RH
DOI: 10.1042/bj20040065
发表时间: 2004-08
期刊: The Biochemical journal
影响因子: --
作者:
A. Mukhopadhyay;L. Ni;H. Weiner
通讯作者: A. Mukhopadhyay;L. Ni;H. Weiner
DOI: 10.1016/s1097-2765(00)80143-4
发表时间: 1998-10-01
期刊: MOLECULAR CELL
影响因子: 16
作者:
Bertrand, E;Chartrand, P;Long, RM
通讯作者: Long, RM
DOI: 10.1091/mbc.e02-08-0490
发表时间: 2003-01-01
影响因子: 3.3
作者:
Naithani, S;Saracco, SA;Fox, TD
通讯作者: Fox, TD