|Citation||Yang, Z., Edenberg, H.J., Davis, R.L. (2005). Isolation of mRNA from specific tissues of Drosophila by mRNA tagging. Nucleic Acids Res. 33(17): e148. (Export to RIS)|
|Publication Type||Research paper|
|PubMed Abstract||To study the function of specific cells or tissues using genomic tools like microarray analyses, it is highly desirable to obtain mRNA from a homogeneous source. However, this is particularly challenging for small organisms, like Caenorhabditis elegans and Drosophila melanogaster. We have optimized and applied a new technique, mRNA tagging, to isolate mRNA from specific tissues of D.melanogaster. A FLAG-tagged poly(A)-binding protein (PABP) is expressed in a specific tissue and mRNA from that tissue is thus tagged by the recombinant PABP and separated from mRNA in other tissues by co-immunoprecipitation with a FLAG-tag specific antibody. The fractionated mRNA is then amplified and used as probe in microarray experiments. As a test system, we employed the procedures to identify genes expressed in Drosophila photoreceptor cells. We found that most known photoreceptor cell-specific mRNAs were identified by mRNA tagging. Furthermore, at least 11 novel genes have been identified as enriched in photoreceptor cells. mRNA tagging is a powerful general method for profiling gene expression in specific tissues and for identifying tissue-specific genes.|
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|Language of Publication||English|
|Additional Languages of Abstract|
|Also Published As|
|Abbreviation||Nucleic Acids Res.|
|Title||Nucleic Acids Research|
|Data from Reference|
|Natural transposons (1)|