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  • 1
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    Differential use of CREB binding protein-coactivator complexes (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-02-21
    Description: CREB binding protein (CBP) functions as an essential coactivator of transcription factors that are inhibited by the adenovirus early gene product E1A. Transcriptional activation by the signal transducer and activator of transcription-1 (STAT1) protein requires the C/H3 domain in CBP, which is the primary target of E1A inhibition. Here it was found that the C/H3 domain is not required for retinoic acid receptor (RAR) function, nor is it involved in E1A inhibition. Instead, E1A inhibits RAR function by preventing the assembly of CBP-nuclear receptor coactivator complexes, revealing differences in required CBP domains for transcriptional activation by RAR and STAT1.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kurokawa, R -- Kalafus, D -- Ogliastro, M H -- Kioussi, C -- Xu, L -- Torchia, J -- Rosenfeld, M G -- Glass, C K -- New York, N.Y. -- Science. 1998 Jan 30;279(5351):700-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Cellular and Molecular Medicine, Department of Medicine, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0651, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9445474" target="_blank"〉PubMed〈/a〉
    Keywords: Adenovirus E1A Proteins/*metabolism/pharmacology ; Animals ; Binding Sites ; CREB-Binding Protein ; Cell Differentiation ; Cell Line ; DNA-Binding Proteins/metabolism ; Histone Acetyltransferases ; Humans ; Mutation ; Nuclear Proteins/chemistry/genetics/*metabolism ; Nuclear Receptor Coactivator 1 ; Nuclear Receptor Coactivator 3 ; Protein Binding ; Receptors, Retinoic Acid/metabolism ; Recombinant Fusion Proteins/metabolism ; STAT1 Transcription Factor ; Trans-Activators/metabolism ; Transcription Factors/chemistry/genetics/*metabolism ; *Transcription, Genetic ; Transcriptional Activation ; Tretinoin/pharmacology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    Dnmt3L and the establishment of maternal genomic imprints (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-11-24
    Description: Complementary sets of genes are epigenetically silenced in male and female gametes in a process termed genomic imprinting. The Dnmt3L gene is expressed during gametogenesis at stages where genomic imprints are established. Targeted disruption of Dnmt3L caused azoospermia in homozygous males, and heterozygous progeny of homozygous females died before midgestation. Bisulfite genomic sequencing of DNA from oocytes and embryos showed that removal of Dnmt3L prevented methylation of sequences that are normally maternally methylated. The defect was specific to imprinted regions, and global genome methylation levels were not affected. Lack of maternal methylation imprints in heterozygous embryos derived from homozygous mutant oocytes caused biallelic expression of genes that are normally expressed only from the allele of paternal origin. The key catalytic motifs characteristic of DNA cytosine methyltransferases have been lost from Dnmt3L, and the protein is more likely to act as a regulator of imprint establishment than as a DNA methyltransferase.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bourc'his, D -- Xu, G L -- Lin, C S -- Bollman, B -- Bestor, T H -- GM59377/GM/NIGMS NIH HHS/ -- HD37687/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 2001 Dec 21;294(5551):2536-9. Epub 2001 Nov 22.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics and Development, Transgenic Animal Facility, Herbert Irving Comprehensive Cancer Center, College of Physicians and Surgeons of Columbia University, New York, NY 10032, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11719692" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Animals ; Autoantigens/genetics ; Catalytic Domain ; Crosses, Genetic ; DNA (Cytosine-5-)-Methyltransferase/chemistry/genetics/*physiology ; *DNA Methylation ; Embryo, Mammalian/cytology/*metabolism ; Female ; Gene Expression ; Gene Targeting ; *Genomic Imprinting ; Heterozygote ; Homozygote ; Male ; Mice ; Mutation ; Oocytes/*metabolism ; Oogenesis ; Phenotype ; *Ribonucleoproteins, Small Nuclear ; Stem Cells ; Testis/metabolism ; snRNP Core Proteins
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 3
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    Transcription factor-specific requirements for coactivators and their acetyltransferase functions (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-02-21
    Description: Different classes of mammalian transcription factors-nuclear receptors, cyclic adenosine 3',5'-monophosphate-regulated enhancer binding protein (CREB), and signal transducer and activator of transcription-1 (STAT-1)-functionally require distinct components of the coactivator complex, including CREB-binding protein (CBP/p300), nuclear receptor coactivators (NCoAs), and p300/CBP-associated factor (p/CAF), based on their platform or assembly properties. Retinoic acid receptor, CREB, and STAT-1 also require different histone acetyltransferase (HAT) activities to activate transcription. Thus, transcription factor-specific differences in configuration and content of the coactivator complex dictate requirements for specific acetyltransferase activities, providing an explanation, at least in part, for the presence of multiple HAT components of the complex.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Korzus, E -- Torchia, J -- Rose, D W -- Xu, L -- Kurokawa, R -- McInerney, E M -- Mullen, T M -- Glass, C K -- Rosenfeld, M G -- New York, N.Y. -- Science. 1998 Jan 30;279(5351):703-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, University of California San Diego (UCSD), 9500 Gilman Drive, La Jolla, CA 92093-0648, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9445475" target="_blank"〉PubMed〈/a〉
    Keywords: Acetyltransferases/genetics/*metabolism ; CREB-Binding Protein ; Cell Cycle Proteins/genetics/*metabolism ; Cyclic AMP/metabolism ; Cyclic AMP Response Element-Binding Protein/metabolism ; DNA-Binding Proteins/metabolism ; Gene Expression Regulation ; HeLa Cells ; Histone Acetyltransferases ; Humans ; Ligands ; Mutation ; Nuclear Proteins/*metabolism ; Nuclear Receptor Co-Repressor 1 ; Nuclear Receptor Coactivator 1 ; Nuclear Receptor Coactivator 3 ; Promoter Regions, Genetic ; Receptors, Retinoic Acid/metabolism ; Repressor Proteins/metabolism ; STAT1 Transcription Factor ; *Saccharomyces cerevisiae Proteins ; Trans-Activators/metabolism ; Transcription Factors/genetics/*metabolism ; *Transcription, Genetic ; Transcriptional Activation ; p300-CBP Transcription Factors
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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