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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Altman, S. Guerrier-takada, C. Li, Y. |
| Description | Author Affiliation: Guerrier-Takada C ( Department of Biology, Yale University, New Haven, CT 06520, USA.); |
| Abstract | Plasmids encoding various external guide sequences (EGSs) were constructed and inserted into Escherichia coli. In strains harboring the appropriate plasmids, the expression of fully induced beta-galactosidase and alkaline phosphatase activity was reduced by more than 50%, while no reduction in such activity was observed in strains with non-specific EGSs. The inhibition of gene expression was virtually abolished at restrictive temperatures in strains that were temperature-sensitive for RNase P (EC 3.1.26.5). Northern blot analysis showed that the steady-state copy number of EGS RNAs was several hundred per cell in vivo. A plasmid that contained a gene for M1 RNA covalently linked to a specific EGS reduced the level of expression of a suppressor tRNA that was encoded by a separate plasmid. Similar methods can be used to regulate gene expression in E. coli and to mimic the properties of cold-sensitive mutants. |
| ISSN | 00278424 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 24 |
| Volume Number | 92 |
| Language | English |
| Publisher | National Academy of Sciences |
| Publisher Date | 1995-12-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Endoribonucleases Physiology Escherichia Coli Proteins Escherichia Coli Genetics Gene Expression Regulation, Bacterial RNA, Catalytic Enzymology Molecular Sequence Data Oligoribonucleotides Chemistry RNA, Antisense RNA, Bacterial RNA, Messenger Ribonuclease P Temperature Research Support, U.S. Gov't, P.H.S. Multidisciplinary |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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