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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Schultz, Richard M. Reddi, P. Prabhakara Medvedev, Sergey Hecht, Norman B. Yang, Juxiang |
| Description | Author Affiliation: Yang J ( Center for Research on Reproduction and Women's Health and Department of Biology, University of Pennsylvania, Philadelphia, PA 19104, USA.); |
| Abstract | During spermatogenesis, male germ cells temporally synthesize many proteins as they differentiate through meiosis and become spermatozoa. The germ cell Y-box protein, MSY2, constituting approximately 0.7% of total protein in male germ cells, binds to a consensus promoter element, and shows a general lack of RNA-binding specificity. Combining immunoprecipitation and suppressive subtractive hybridization, we identified populations of germ cell mRNAs that are not bound or bound by MSY2. The former population is enriched in cell growth and ubiquitously expressed mRNAs, whereas the latter population is enriched for stored or translationally delayed, male gamete-specific transcripts. Chromatin precipitation assays reveal that most of the MSY2 target mRNAs are transcribed from genes containing the Y-box DNA-binding motif in their promoters. In transgenic mice, mRNAs encoding exogenous GFP are directed or not directed into the MSY2-bound fraction by promoters containing or lacking the Y-box motif, respectively. We propose that MSY2 marks specific mRNAs in the nucleus for cytoplasmic storage, thereby linking transcription and mRNA storage/translational delay in meiotic and postmeiotic male germ cells of the mouse. |
| ISSN | 00278424 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 5 |
| Volume Number | 102 |
| Language | English |
| Publisher | National Academy of Sciences |
| Publisher Date | 2005-02-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Cytoplasm Physiology RNA-Binding Proteins Genetics Spermatozoa Animals Chromatin Ultrastructure DNA-Binding Proteins Metabolism Meiosis Mice Promoter Regions, Genetic Protein Biosynthesis RNA, Messenger Recombinant Proteins Reverse Transcriptase Polymerase Chain Reaction Cytology Transcription, Genetic Research Support, U.S. Gov't, P.H.S. Multidisciplinary |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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