Abstract
We have undertaken a detailed characterization of mouse globin gene expression patterns in the nucleus and cytoplasm of single erythroid cells. We demonstrate an imbalance of alpha- versus beta-globin expression in a significant proportion of cells both in nuclear transcription patterns and cytoplasmic mRNA levels. Clonal cell analysis showed these expression patterns to be clonally inherited, while analysis of a multicopy transgenic locus showed an all-or-none effect in the activation of all the genes in one locus. These data provide strong evidence for a stochastic basis of globin gene activation resulting in heritable all-or-none expression patterns.
Original language | English |
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Pages (from-to) | 1319-26 |
Number of pages | 8 |
Journal | MOLECULAR CELL |
Volume | 9 |
Issue number | 6 |
DOIs | |
Publication status | Published - Jun 2002 |
Keywords
- Animals
- Cell Differentiation/physiology
- Cell Fractionation
- Erythrocytes/cytology
- Gene Expression Regulation
- Globins/genetics
- Hepatocytes/cytology
- Humans
- In Situ Hybridization
- Mice
- Mice, Transgenic
- RNA, Messenger/metabolism
- Transcriptional Activation