Journal ArticleDOI
Targeted mutation of the DNA methyltransferase gene results in embryonic lethality.
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Results indicate that while a 3-fold reduction in levels of genomic m5C has no detectable effect on the viability or proliferation of ES cells in culture, a similar reduction of DNA methylation in embryos causes abnormal development and embryonic lethality.About:
This article is published in Cell.The article was published on 1992-06-12. It has received 3994 citations till now. The article focuses on the topics: DNA methylation & DNA methyltransferase.read more
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DNA methylation patterns and epigenetic memory
TL;DR: The heritability of methylation states and the secondary nature of the decision to invite or exclude methylation support the idea that DNA methylation is adapted for a specific cellular memory function in development.
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Epigenetic regulation of gene expression: how the genome integrates intrinsic and environmental signals
Rudolf Jaenisch,Adrian Bird +1 more
TL;DR: Advances in the understanding of the mechanism and role of DNA methylation in biological processes are reviewed, showing that epigenetic mechanisms seem to allow an organism to respond to the environment through changes in gene expression.
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DNA methyltransferases Dnmt3a and Dnmt3b are essential for de novo methylation and mammalian development.
TL;DR: It is demonstrated that two recently identified DNA methyltransferases, DnMT3a and Dnmt3b, are essential for de novo methylation and for mouse development and play important roles in normal development and disease.
Journal ArticleDOI
Functions of DNA methylation: islands, start sites, gene bodies and beyond
TL;DR: Improved genome-scale mapping of methylation allows us to evaluate DNA methylation in different genomic contexts: transcriptional start sites with or without CpG islands, in gene bodies, at regulatory elements and at repeat sequences.
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Human DNA methylomes at base resolution show widespread epigenomic differences
Ryan Lister,Mattia Pelizzola,Robert H. Dowen,R. David Hawkins,Gary C. Hon,Julian Tonti-Filippini,Joseph R. Nery,Leonard Lee,Zhen Ye,Que Minh Ngo,Lee Edsall,Jessica Antosiewicz-Bourget,Jessica Antosiewicz-Bourget,Ron Stewart,Ron Stewart,Victor Ruotti,Victor Ruotti,A. Harvey Millar,James A. Thomson,Bing Ren,Bing Ren,Joseph R. Ecker +21 more
TL;DR: The first genome-wide, single-base-resolution maps of methylated cytosines in a mammalian genome, from both human embryonic stem cells and fetal fibroblasts, along with comparative analysis of messenger RNA and small RNA components of the transcriptome, several histone modifications, and sites of DNA-protein interaction for several key regulatory factors were presented in this article.
References
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A method for the quantitative recovery of protein in dilute solution in the presence of detergents and lipids
D. Wessel,U.I. Flügge +1 more
TL;DR: A rapid method based on a defined methanol-chloroform-water mixture for the quantitative precipitation of soluble as well as hydrophobic proteins from dilute solutions (e.g., column chromatography effluents) has been developed.
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Site-directed mutagenesis by gene targeting in mouse embryo-derived stem cells.
Kirk R. Thomas,Mario R. Capecchi +1 more
TL;DR: This work mutated, by gene targeting, the endogenous hypoxanthine phosphoribosyl transferase (HPRT) gene in mouse embryo-derived stem (ES) cells and compared the gene-targeting efficiencies of two classes of neor-Hprt recombinant vectors.
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Altering the genome by homologous recombination.
TL;DR: The current status of gene targeting with particular emphasis on germ line modification of the mouse genome is discussed, and the different methods so far employed to identify those rare embryonic stem cells in which the desired targeting event has occurred are described.
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Disruption of the proto-oncogene int-2 in mouse embryo-derived stem cells: a general strategy for targeting mutations to non-selectable genes
TL;DR: A positive and negative selection procedure is described that enriches 2,000-fold for those cells that contain a targeted mutation in mouse embryo-derived stem cells.
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The Wnt-1 (int-1) proto-oncogene is required for development of a large region of the mouse brain
Andrew P. McMahon,Allan Bradley +1 more
TL;DR: The Wnt-1 (int-1) proto-oncogene, which encodes a putative signaling molecule, is expressed exclusively in the developing central nervous system and adult testes and its normal role is in determination or subsequent development of a specific region of thecentral nervous system.