isoTarget: A Genetic Method for Analyzing the Functional Diversity of Splicing Isoforms In Vivo.
isoTarget: A Genetic Method for Analyzing the Functional Diversity of Splicing Isoforms In Vivo.
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DOI:
10.1016/j.celrep.2020.108361
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发表时间:
2020-11-10
期刊:
影响因子:
8.8
通讯作者:
Ye B
中科院分区:
文献类型:
--
作者:
Liu H;Pizzano S;Li R;Zhao W;Veling MW;Hu Y;Yang L;Ye B
Protein isoforms generated by alternative splicing contribute to proteome diversity. Because of the lack of effective techniques, the isoform-specific function, expression, localization, and signaling of endogenous proteins are unknown for most genes. Here, we report a genetic method, isoTarget, for multi-purpose studies of targeted isoforms in select cells. Applying isoTarget to two isoforms of Drosophila Dscam, Dscam[TM1] and [TM2], we found that, in neurons, endogenous Dscam[TM1] is in dendrites, whereas Dscam[TM2] is in both dendrites and axons. We demonstrate that the difference in subcellular localization, rather than biochemical properties, leads to the two isoforms’ functional differences. Moreover, we show that the subcellular enrichment of functional partners results in a DLK/Wallenda-Dscam[TM2]-Dock signaling cascade in axons. We further apply isoTarget to study two isoforms of a GABA receptor to demonstrate its general applicability. isoTarget is an effective technique for studying how alternative splicing enhances proteome complexity. Liu et al. develop a genetic method that enables the investigation of isoform-specific function, expression, localization, and signaling of endogenous proteins in select cells. Using this method, they demonstrate that the difference in subcellular localization of two isoforms of Down syndrome cell adhesion molecule leads to functional differences between them.
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影响因子:
16.2
作者:
Kim JH;Wang X;Coolon R;Ye B
通讯作者:
Ye B
影响因子:
64.8
作者:
Miller PS;Aricescu AR
通讯作者:
Aricescu AR
影响因子:
3.5
作者:
Kelemen O;Convertini P;Zhang Z;Wen Y;Shen M;Falaleeva M;Stamm S
通讯作者:
Stamm S
DOI:
10.1038/nrm.2017.27
发表时间:
2017-07
期刊:
Nature reviews. Molecular cell biology
影响因子:
--
作者:
Baralle FE;Giudice J
通讯作者:
Giudice J
影响因子:
64.5
作者:
Hing, H;Xiao, J;Zipursky, SL
通讯作者:
Zipursky, SL