Polycistronic RNA polymerase II expression vectors for RNA interference based on BIC/miR-155.
Polycistronic RNA polymerase II expression vectors for RNA interference based on BIC/miR-155.
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DOI:
10.1093/nar/gkl143
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发表时间:
2006-04-13
影响因子:
14.9
通讯作者:
Turner DL
中科院分区:
文献类型:
--
作者:
Chung KH;Hart CC;Al-Bassam S;Avery A;Taylor J;Patel PD;Vojtek AB;Turner DL
Vector-based RNA interference (RNAi) has emerged as a valuable tool for analysis of gene function. We have developed new RNA polymerase II expression vectors for RNAi, designated SIBR vectors, based upon the non-coding RNA BIC. BIC contains the miR-155 microRNA (miRNA) precursor, and we find that expression of a short region of the third exon of mouse BIC is sufficient to produce miR-155 in mammalian cells. The SIBR vectors use a modified miR-155 precursor stem–loop and flanking BIC sequences to express synthetic miRNAs complementary to target RNAs. Like RNA polymerase III driven short hairpin RNA vectors, the SIBR vectors efficiently reduce target mRNA and protein expression. The synthetic miRNAs can be expressed from an intron, allowing coexpression of a marker or other protein with the miRNAs. In addition, intronic expression of a synthetic miRNA from a two intron vector enhances RNAi. A SIBR vector can express two different miRNAs from a single transcript for effective inhibition of two different target mRNAs. Furthermore, at least eight tandem copies of a synthetic miRNA can be expressed in a polycistronic transcript to increase the inhibition of a target RNA. The SIBR vectors are flexible tools for a variety of RNAi applications.
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影响因子:
56.9
作者:
Lagos-Quintana, M;Rauhut, R;Tuschl, T
通讯作者:
Tuschl, T
影响因子:
4.5
作者:
Cai, XZ;Hagedorn, CH;Cullen, BR
通讯作者:
Cullen, BR
影响因子:
64.8
作者:
Lee, Y;Ahn, C;Kim, VN
通讯作者:
Kim, VN
DOI:
10.1073/pnas.0500613102
发表时间:
2005-03-08
影响因子:
11.1
作者:
Eis, PS;Tam, W;Dahlberg, JE
通讯作者:
Dahlberg, JE
影响因子:
11.4
作者:
Lee, Y;Jeon, K;Kim, VN
通讯作者:
Kim, VN