Journal
TRENDS IN GENETICS
Volume 30, Issue 6, Pages 237-244Publisher
ELSEVIER SCIENCE LONDON
DOI: 10.1016/j.tig.2014.03.003
Keywords
monoallelic expression; stochastic gene regulation
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Funding
- Genentech Foundation Fellowship
- NIGMS [42694]
- NCI [2P30CA45508]
- George A. and Marjorie H. Anderson Fellowship
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Monoallelic gene expression is a remarkable process in which transcription occurs from only one of two homologous alleles in a diploid cell. Interestingly, between 0.5% and 15% of autosomal genes exhibit random monoallelic gene expression, in which different cells express only one allele independently of the underlying genomic sequence, in a cell type-specific manner. Recently, genome-wide studies have increased our understanding of the cell type-specific incidence of random monoallelic gene expression, and how the imbalance in allelic expression is distinguished within the cell and potentially maintained across cell generations. Monoallelic gene expression is likely generated through stochastic independent regulation of the two alleles upon differentiation, and has varied implications for the cell and organism, in particular with respect to disease.
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