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  • 1
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    The sequence and de novo assembly of the giant panda genome (2009)
    Nature Publishing Group (NPG)
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    Publication Date: 2009-12-17
    Description: Using next-generation sequencing technology alone, we have successfully generated and assembled a draft sequence of the giant panda genome. The assembled contigs (2.25 gigabases (Gb)) cover approximately 94% of the whole genome, and the remaining gaps (0.05 Gb) seem to contain carnivore-specific repeats and tandem repeats. Comparisons with the dog and human showed that the panda genome has a lower divergence rate. The assessment of panda genes potentially underlying some of its unique traits indicated that its bamboo diet might be more dependent on its gut microbiome than its own genetic composition. We also identified more than 2.7 million heterozygous single nucleotide polymorphisms in the diploid genome. Our data and analyses provide a foundation for promoting mammalian genetic research, and demonstrate the feasibility for using next-generation sequencing technologies for accurate, cost-effective and rapid de novo assembly of large eukaryotic genomes.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3951497/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3951497/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Li, Ruiqiang -- Fan, Wei -- Tian, Geng -- Zhu, Hongmei -- He, Lin -- Cai, Jing -- Huang, Quanfei -- Cai, Qingle -- Li, Bo -- Bai, Yinqi -- Zhang, Zhihe -- Zhang, Yaping -- Wang, Wen -- Li, Jun -- Wei, Fuwen -- Li, Heng -- Jian, Min -- Li, Jianwen -- Zhang, Zhaolei -- Nielsen, Rasmus -- Li, Dawei -- Gu, Wanjun -- Yang, Zhentao -- Xuan, Zhaoling -- Ryder, Oliver A -- Leung, Frederick Chi-Ching -- Zhou, Yan -- Cao, Jianjun -- Sun, Xiao -- Fu, Yonggui -- Fang, Xiaodong -- Guo, Xiaosen -- Wang, Bo -- Hou, Rong -- Shen, Fujun -- Mu, Bo -- Ni, Peixiang -- Lin, Runmao -- Qian, Wubin -- Wang, Guodong -- Yu, Chang -- Nie, Wenhui -- Wang, Jinhuan -- Wu, Zhigang -- Liang, Huiqing -- Min, Jiumeng -- Wu, Qi -- Cheng, Shifeng -- Ruan, Jue -- Wang, Mingwei -- Shi, Zhongbin -- Wen, Ming -- Liu, Binghang -- Ren, Xiaoli -- Zheng, Huisong -- Dong, Dong -- Cook, Kathleen -- Shan, Gao -- Zhang, Hao -- Kosiol, Carolin -- Xie, Xueying -- Lu, Zuhong -- Zheng, Hancheng -- Li, Yingrui -- Steiner, Cynthia C -- Lam, Tommy Tsan-Yuk -- Lin, Siyuan -- Zhang, Qinghui -- Li, Guoqing -- Tian, Jing -- Gong, Timing -- Liu, Hongde -- Zhang, Dejin -- Fang, Lin -- Ye, Chen -- Zhang, Juanbin -- Hu, Wenbo -- Xu, Anlong -- Ren, Yuanyuan -- Zhang, Guojie -- Bruford, Michael W -- Li, Qibin -- Ma, Lijia -- Guo, Yiran -- An, Na -- Hu, Yujie -- Zheng, Yang -- Shi, Yongyong -- Li, Zhiqiang -- Liu, Qing -- Chen, Yanling -- Zhao, Jing -- Qu, Ning -- Zhao, Shancen -- Tian, Feng -- Wang, Xiaoling -- Wang, Haiyin -- Xu, Lizhi -- Liu, Xiao -- Vinar, Tomas -- Wang, Yajun -- Lam, Tak-Wah -- Yiu, Siu-Ming -- Liu, Shiping -- Zhang, Hemin -- Li, Desheng -- Huang, Yan -- Wang, Xia -- Yang, Guohua -- Jiang, Zhi -- Wang, Junyi -- Qin, Nan -- Li, Li -- Li, Jingxiang -- Bolund, Lars -- Kristiansen, Karsten -- Wong, Gane Ka-Shu -- Olson, Maynard -- Zhang, Xiuqing -- Li, Songgang -- Yang, Huanming -- Wang, Jian -- Wang, Jun -- R01 HG003229/HG/NHGRI NIH HHS/ -- R01 HG003229-05/HG/NHGRI NIH HHS/ -- England -- Nature. 2010 Jan 21;463(7279):311-7. doi: 10.1038/nature08696. Epub 2009 Dec 13.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉BGI-Shenzhen, Shenzhen 518083, China.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20010809" target="_blank"〉PubMed〈/a〉
    Keywords: Algorithms ; Animals ; China ; Conserved Sequence/genetics ; Contig Mapping ; Diet/veterinary ; Dogs ; Evolution, Molecular ; Female ; Fertility/genetics/physiology ; Genome/*genetics ; *Genomics ; Heterozygote ; Humans ; Multigene Family/genetics ; Polymorphism, Single Nucleotide/genetics ; Receptors, G-Protein-Coupled/genetics ; Sequence Alignment ; Sequence Analysis, DNA ; Synteny/genetics ; Ursidae/classification/*genetics/physiology
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 2
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    Relationship between nucleosome positioning and DNA methylation (2010)
    Nature Publishing Group (NPG)
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    Publication Date: 2010-06-01
    Description: Nucleosomes compact and regulate access to DNA in the nucleus, and are composed of approximately 147 bases of DNA wrapped around a histone octamer. Here we report a genome-wide nucleosome positioning analysis of Arabidopsis thaliana using massively parallel sequencing of mononucleosomes. By combining this data with profiles of DNA methylation at single base resolution, we identified 10-base periodicities in the DNA methylation status of nucleosome-bound DNA and found that nucleosomal DNA was more highly methylated than flanking DNA. These results indicate that nucleosome positioning influences DNA methylation patterning throughout the genome and that DNA methyltransferases preferentially target nucleosome-bound DNA. We also observed similar trends in human nucleosomal DNA, indicating that the relationships between nucleosomes and DNA methyltransferases are conserved. Finally, as has been observed in animals, nucleosomes were highly enriched on exons, and preferentially positioned at intron-exon and exon-intron boundaries. RNA polymerase II (Pol II) was also enriched on exons relative to introns, consistent with the hypothesis that nucleosome positioning regulates Pol II processivity. DNA methylation is also enriched on exons, consistent with the targeting of DNA methylation to nucleosomes, and suggesting a role for DNA methylation in exon definition.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2964354/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2964354/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chodavarapu, Ramakrishna K -- Feng, Suhua -- Bernatavichute, Yana V -- Chen, Pao-Yang -- Stroud, Hume -- Yu, Yanchun -- Hetzel, Jonathan A -- Kuo, Frank -- Kim, Jin -- Cokus, Shawn J -- Casero, David -- Bernal, Maria -- Huijser, Peter -- Clark, Amander T -- Kramer, Ute -- Merchant, Sabeeha S -- Zhang, Xiaoyu -- Jacobsen, Steven E -- Pellegrini, Matteo -- GM07104/GM/NIGMS NIH HHS/ -- GM42143/GM/NIGMS NIH HHS/ -- GM60398/GM/NIGMS NIH HHS/ -- R37 GM042143/GM/NIGMS NIH HHS/ -- R37 GM060398/GM/NIGMS NIH HHS/ -- R37 GM060398-10/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2010 Jul 15;466(7304):388-92. doi: 10.1038/nature09147. Epub 2010 May 30.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular, Cell, and Developmental Biology, University of California Los Angeles, Los Angeles, California 90095, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20512117" target="_blank"〉PubMed〈/a〉
    Keywords: Arabidopsis/enzymology/*genetics/*metabolism ; Chromatin Assembly and Disassembly/genetics/*physiology ; Chromatin Immunoprecipitation ; DNA Methylation/genetics/*physiology ; DNA Polymerase II/analysis/metabolism ; DNA, Plant/genetics/metabolism ; Exons/genetics ; Genes, Plant/genetics ; Genome, Plant/genetics ; Humans ; Micrococcal Nuclease/metabolism ; Nucleosomes/genetics/*metabolism ; Sequence Analysis, DNA
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 3
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    Feeding China's growing needs for grain (2010)
    Nature Publishing Group (NPG)
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    Publication Date: 2010-05-28
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Liu, Xiaobing -- Zhang, Xingyi -- Herbert, Stephen J -- England -- Nature. 2010 May 27;465(7297):420. doi: 10.1038/465420a.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20505710" target="_blank"〉PubMed〈/a〉
    Keywords: Agriculture/statistics & numerical data/*trends ; China ; Edible Grain/*supply & distribution ; Food Supply/*statistics & numerical data
    Print ISSN: 0028-0836
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 4
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    Shotgun bisulphite sequencing of the Arabidopsis genome reveals DNA methylation patterning (2008)
    Nature Publishing Group (NPG)
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    Publication Date: 2008-02-19
    Description: Cytosine DNA methylation is important in regulating gene expression and in silencing transposons and other repetitive sequences. Recent genomic studies in Arabidopsis thaliana have revealed that many endogenous genes are methylated either within their promoters or within their transcribed regions, and that gene methylation is highly correlated with transcription levels. However, plants have different types of methylation controlled by different genetic pathways, and detailed information on the methylation status of each cytosine in any given genome is lacking. To this end, we generated a map at single-base-pair resolution of methylated cytosines for Arabidopsis, by combining bisulphite treatment of genomic DNA with ultra-high-throughput sequencing using the Illumina 1G Genome Analyser and Solexa sequencing technology. This approach, termed BS-Seq, unlike previous microarray-based methods, allows one to sensitively measure cytosine methylation on a genome-wide scale within specific sequence contexts. Here we describe methylation on previously inaccessible components of the genome and analyse the DNA methylation sequence composition and distribution. We also describe the effect of various DNA methylation mutants on genome-wide methylation patterns, and demonstrate that our newly developed library construction and computational methods can be applied to large genomes such as that of mouse.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2377394/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2377394/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cokus, Shawn J -- Feng, Suhua -- Zhang, Xiaoyu -- Chen, Zugen -- Merriman, Barry -- Haudenschild, Christian D -- Pradhan, Sriharsa -- Nelson, Stanley F -- Pellegrini, Matteo -- Jacobsen, Steven E -- Howard Hughes Medical Institute/ -- England -- Nature. 2008 Mar 13;452(7184):215-9. doi: 10.1038/nature06745. Epub 2008 Feb 17.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular, Cell, and Developmental Biology, University of California at Los Angeles, Los Angeles, California 90095, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18278030" target="_blank"〉PubMed〈/a〉
    Keywords: 5-Methylcytosine/metabolism ; Animals ; Arabidopsis/*genetics ; Base Sequence ; Computational Biology ; Cytosine/metabolism ; *DNA Methylation ; Gene Expression Regulation, Plant/genetics ; Gene Library ; Genome, Plant/*genetics ; Mice ; Mutation/genetics ; Promoter Regions, Genetic/genetics ; Reproducibility of Results ; Sequence Analysis, DNA/*methods ; Sulfites/*metabolism ; Uracil/metabolism
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 5
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    The diploid genome sequence of an Asian individual (2008)
    Nature Publishing Group (NPG)
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    Publication Date: 2008-11-07
    Description: Here we present the first diploid genome sequence of an Asian individual. The genome was sequenced to 36-fold average coverage using massively parallel sequencing technology. We aligned the short reads onto the NCBI human reference genome to 99.97% coverage, and guided by the reference genome, we used uniquely mapped reads to assemble a high-quality consensus sequence for 92% of the Asian individual's genome. We identified approximately 3 million single-nucleotide polymorphisms (SNPs) inside this region, of which 13.6% were not in the dbSNP database. Genotyping analysis showed that SNP identification had high accuracy and consistency, indicating the high sequence quality of this assembly. We also carried out heterozygote phasing and haplotype prediction against HapMap CHB and JPT haplotypes (Chinese and Japanese, respectively), sequence comparison with the two available individual genomes (J. D. Watson and J. C. Venter), and structural variation identification. These variations were considered for their potential biological impact. Our sequence data and analyses demonstrate the potential usefulness of next-generation sequencing technologies for personal genomics.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2716080/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2716080/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wang, Jun -- Wang, Wei -- Li, Ruiqiang -- Li, Yingrui -- Tian, Geng -- Goodman, Laurie -- Fan, Wei -- Zhang, Junqing -- Li, Jun -- Zhang, Juanbin -- Guo, Yiran -- Feng, Binxiao -- Li, Heng -- Lu, Yao -- Fang, Xiaodong -- Liang, Huiqing -- Du, Zhenglin -- Li, Dong -- Zhao, Yiqing -- Hu, Yujie -- Yang, Zhenzhen -- Zheng, Hancheng -- Hellmann, Ines -- Inouye, Michael -- Pool, John -- Yi, Xin -- Zhao, Jing -- Duan, Jinjie -- Zhou, Yan -- Qin, Junjie -- Ma, Lijia -- Li, Guoqing -- Yang, Zhentao -- Zhang, Guojie -- Yang, Bin -- Yu, Chang -- Liang, Fang -- Li, Wenjie -- Li, Shaochuan -- Li, Dawei -- Ni, Peixiang -- Ruan, Jue -- Li, Qibin -- Zhu, Hongmei -- Liu, Dongyuan -- Lu, Zhike -- Li, Ning -- Guo, Guangwu -- Zhang, Jianguo -- Ye, Jia -- Fang, Lin -- Hao, Qin -- Chen, Quan -- Liang, Yu -- Su, Yeyang -- San, A -- Ping, Cuo -- Yang, Shuang -- Chen, Fang -- Li, Li -- Zhou, Ke -- Zheng, Hongkun -- Ren, Yuanyuan -- Yang, Ling -- Gao, Yang -- Yang, Guohua -- Li, Zhuo -- Feng, Xiaoli -- Kristiansen, Karsten -- Wong, Gane Ka-Shu -- Nielsen, Rasmus -- Durbin, Richard -- Bolund, Lars -- Zhang, Xiuqing -- Li, Songgang -- Yang, Huanming -- Wang, Jian -- 077192/Wellcome Trust/United Kingdom -- R01 HG003229/HG/NHGRI NIH HHS/ -- R01 HG003229-04/HG/NHGRI NIH HHS/ -- England -- Nature. 2008 Nov 6;456(7218):60-5. doi: 10.1038/nature07484.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Beijing Genomics Institute at Shenzhen, Shenzhen 518000, China. wangj@genomics.org.cn〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18987735" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Animals ; Asian Continental Ancestry Group/*genetics ; Consensus Sequence ; Databases, Genetic ; *Diploidy ; Genetic Predisposition to Disease/genetics ; Genome, Human/*genetics ; *Genomics ; Haplotypes/genetics ; Humans ; Internet ; Pan troglodytes/genetics ; Phenotype ; Polymorphism, Single Nucleotide/genetics ; Sensitivity and Specificity ; Sequence Alignment
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 6
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    Genome-scale DNA methylation maps of pluripotent and differentiated cells (2008)
    Nature Publishing Group (NPG)
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    Publication Date: 2008-07-05
    Description: DNA methylation is essential for normal development and has been implicated in many pathologies including cancer. Our knowledge about the genome-wide distribution of DNA methylation, how it changes during cellular differentiation and how it relates to histone methylation and other chromatin modifications in mammals remains limited. Here we report the generation and analysis of genome-scale DNA methylation profiles at nucleotide resolution in mammalian cells. Using high-throughput reduced representation bisulphite sequencing and single-molecule-based sequencing, we generated DNA methylation maps covering most CpG islands, and a representative sampling of conserved non-coding elements, transposons and other genomic features, for mouse embryonic stem cells, embryonic-stem-cell-derived and primary neural cells, and eight other primary tissues. Several key findings emerge from the data. First, DNA methylation patterns are better correlated with histone methylation patterns than with the underlying genome sequence context. Second, methylation of CpGs are dynamic epigenetic marks that undergo extensive changes during cellular differentiation, particularly in regulatory regions outside of core promoters. Third, analysis of embryonic-stem-cell-derived and primary cells reveals that 'weak' CpG islands associated with a specific set of developmentally regulated genes undergo aberrant hypermethylation during extended proliferation in vitro, in a pattern reminiscent of that reported in some primary tumours. More generally, the results establish reduced representation bisulphite sequencing as a powerful technology for epigenetic profiling of cell populations relevant to developmental biology, cancer and regenerative medicine.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2896277/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2896277/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Meissner, Alexander -- Mikkelsen, Tarjei S -- Gu, Hongcang -- Wernig, Marius -- Hanna, Jacob -- Sivachenko, Andrey -- Zhang, Xiaolan -- Bernstein, Bradley E -- Nusbaum, Chad -- Jaffe, David B -- Gnirke, Andreas -- Jaenisch, Rudolf -- Lander, Eric S -- R01 HG004401/HG/NHGRI NIH HHS/ -- R01 HG004401-02/HG/NHGRI NIH HHS/ -- U54 HG003067/HG/NHGRI NIH HHS/ -- U54 HG003067-04/HG/NHGRI NIH HHS/ -- U54 HG003067-06/HG/NHGRI NIH HHS/ -- England -- Nature. 2008 Aug 7;454(7205):766-70. doi: 10.1038/nature07107. Epub 2008 Jul 6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Whitehead Institute for Biomedical Research, 9 Cambridge Center, Cambridge, Massachusetts 02142, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18600261" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Cell Differentiation ; Cells, Cultured ; Conserved Sequence ; CpG Islands/genetics ; *DNA Methylation ; Embryonic Stem Cells/cytology/metabolism ; Fibroblasts/cytology ; Genome/genetics ; *Genomics ; Histones/genetics/metabolism ; Male ; Mice ; Neurons/cytology ; Pluripotent Stem Cells/*cytology/*metabolism
    Print ISSN: 0028-0836
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    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 7
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    Dissecting direct reprogramming through integrative genomic analysis (2008)
    Nature Publishing Group (NPG)
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    Publication Date: 2008-05-30
    Description: Somatic cells can be reprogrammed to a pluripotent state through the ectopic expression of defined transcription factors. Understanding the mechanism and kinetics of this transformation may shed light on the nature of developmental potency and suggest strategies with improved efficiency or safety. Here we report an integrative genomic analysis of reprogramming of mouse fibroblasts and B lymphocytes. Lineage-committed cells show a complex response to the ectopic expression involving induction of genes downstream of individual reprogramming factors. Fully reprogrammed cells show gene expression and epigenetic states that are highly similar to embryonic stem cells. In contrast, stable partially reprogrammed cell lines show reactivation of a distinctive subset of stem-cell-related genes, incomplete repression of lineage-specifying transcription factors, and DNA hypermethylation at pluripotency-related loci. These observations suggest that some cells may become trapped in partially reprogrammed states owing to incomplete repression of transcription factors, and that DNA de-methylation is an inefficient step in the transition to pluripotency. We demonstrate that RNA inhibition of transcription factors can facilitate reprogramming, and that treatment with DNA methyltransferase inhibitors can improve the overall efficiency of the reprogramming process.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2754827/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2754827/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mikkelsen, Tarjei S -- Hanna, Jacob -- Zhang, Xiaolan -- Ku, Manching -- Wernig, Marius -- Schorderet, Patrick -- Bernstein, Bradley E -- Jaenisch, Rudolf -- Lander, Eric S -- Meissner, Alexander -- U54 HG003067/HG/NHGRI NIH HHS/ -- U54 HG003067-04/HG/NHGRI NIH HHS/ -- England -- Nature. 2008 Jul 3;454(7200):49-55. doi: 10.1038/nature07056. Epub 2008 May 28.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Broad Institute of MIT and Harvard, 7 Cambridge Center, Cambridge, Massachusetts 02142, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18509334" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Azacitidine/pharmacology ; Cell Line ; Cell Lineage ; Cellular Reprogramming/*genetics ; Chromatin/metabolism ; DNA (Cytosine-5-)-Methyltransferase/antagonists & inhibitors/genetics/metabolism ; DNA Methylation ; Embryonic Stem Cells/metabolism ; Enzyme Inhibitors/pharmacology ; Gene Expression Profiling ; Gene Expression Regulation, Developmental ; Genome/genetics ; *Genomics ; Mice ; Pluripotent Stem Cells/cytology/*metabolism ; Transcription Factors/deficiency/genetics
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  • 8
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    Dynamic binding orientations direct activity of HIV reverse transcriptase (2008)
    Nature Publishing Group (NPG)
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    Publication Date: 2008-05-10
    Description: The reverse transcriptase of human immunodeficiency virus (HIV) catalyses a series of reactions to convert the single-stranded RNA genome of HIV into double-stranded DNA for host-cell integration. This task requires the reverse transcriptase to discriminate a variety of nucleic-acid substrates such that active sites of the enzyme are correctly positioned to support one of three catalytic functions: RNA-directed DNA synthesis, DNA-directed DNA synthesis and DNA-directed RNA hydrolysis. However, the mechanism by which substrates regulate reverse transcriptase activities remains unclear. Here we report distinct orientational dynamics of reverse transcriptase observed on different substrates with a single-molecule assay. The enzyme adopted opposite binding orientations on duplexes containing DNA or RNA primers, directing its DNA synthesis or RNA hydrolysis activity, respectively. On duplexes containing the unique polypurine RNA primers for plus-strand DNA synthesis, the enzyme can rapidly switch between the two orientations. The switching kinetics were regulated by cognate nucleotides and non-nucleoside reverse transcriptase inhibitors, a major class of anti-HIV drugs. These results indicate that the activities of reverse transcriptase are determined by its binding orientation on substrates.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2655135/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2655135/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Abbondanzieri, Elio A -- Bokinsky, Gregory -- Rausch, Jason W -- Zhang, Jennifer X -- Le Grice, Stuart F J -- Zhuang, Xiaowei -- GM 068518/GM/NIGMS NIH HHS/ -- R01 GM068518/GM/NIGMS NIH HHS/ -- R01 GM068518-05/GM/NIGMS NIH HHS/ -- Z01 BC010493-05/Intramural NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2008 May 8;453(7192):184-9. doi: 10.1038/nature06941.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18464735" target="_blank"〉PubMed〈/a〉
    Keywords: Binding Sites ; Catalysis ; DNA/*biosynthesis ; DNA Primers/genetics/metabolism ; *DNA Replication ; Fluorescence Resonance Energy Transfer ; HIV/*enzymology/genetics ; HIV Reverse Transcriptase/*chemistry/*metabolism ; Hydrolysis ; Ligands ; RNA/genetics/*metabolism ; *Reverse Transcription ; Substrate Specificity ; Templates, Genetic
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  • 9
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    The SRA domain of UHRF1 flips 5-methylcytosine out of the DNA helix (2008)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2008-09-06
    Description: Maintenance methylation of hemimethylated CpG dinucleotides at DNA replication forks is the key to faithful mitotic inheritance of genomic methylation patterns. UHRF1 (ubiquitin-like, containing PHD and RING finger domains 1) is required for maintenance methylation by interacting with DNA nucleotide methyltransferase 1 (DNMT1), the maintenance methyltransferase, and with hemimethylated CpG, the substrate for DNMT1 (refs 1 and 2). Here we present the crystal structure of the SET and RING-associated (SRA) domain of mouse UHRF1 in complex with DNA containing a hemimethylated CpG site. The DNA is contacted in both the major and minor grooves by two loops that penetrate into the middle of the DNA helix. The 5-methylcytosine has flipped completely out of the DNA helix and is positioned in a binding pocket with planar stacking contacts, Watson-Crick polar hydrogen bonds and van der Waals interactions specific for 5-methylcytosine. Hence, UHRF1 contains a previously unknown DNA-binding module and is the first example of a non-enzymatic, sequence-specific DNA-binding protein domain to use the base flipping mechanism to interact with DNA.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2602803/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2602803/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hashimoto, Hideharu -- Horton, John R -- Zhang, Xing -- Bostick, Magnolia -- Jacobsen, Steven E -- Cheng, Xiaodong -- CA1263022/CA/NCI NIH HHS/ -- GM049245/GM/NIGMS NIH HHS/ -- GM060398/GM/NIGMS NIH HHS/ -- R01 GM049245/GM/NIGMS NIH HHS/ -- R01 GM049245-15/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2008 Oct 9;455(7214):826-9. doi: 10.1038/nature07280. Epub 2008 Sep 3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, Emory University School of Medicine, 1510 Clifton Road, Atlanta, Georgia 30322, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18772888" target="_blank"〉PubMed〈/a〉
    Keywords: 5-Methylcytosine/*metabolism ; Animals ; Base Sequence ; CpG Islands/genetics ; Crystallography, X-Ray ; DNA/*chemistry/genetics/*metabolism ; *DNA Methylation ; Hydrogen Bonding ; Hydrophobic and Hydrophilic Interactions ; Mice ; Models, Molecular ; Molecular Conformation ; Nuclear Proteins/*chemistry/*metabolism ; Protein Binding ; Protein Structure, Tertiary
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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    A myocardial lineage derives from Tbx18 epicardial cells (2008)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2008-05-16
    Description: Understanding the origins and roles of cardiac progenitor cells is important for elucidating the pathogenesis of congenital and acquired heart diseases. Moreover, manipulation of cardiac myocyte progenitors has potential for cell-based repair strategies for various myocardial disorders. Here we report the identification in mouse of a previously unknown cardiac myocyte lineage that derives from the proepicardial organ. These progenitor cells, which express the T-box transcription factor Tbx18, migrate onto the outer cardiac surface to form the epicardium, and then make a substantial contribution to myocytes in the ventricular septum and the atrial and ventricular walls. Tbx18-expressing cardiac progenitors also give rise to cardiac fibroblasts and coronary smooth muscle cells. The pluripotency of Tbx18 proepicardial cells provides a theoretical framework for applying these progenitors to effect cardiac repair and regeneration.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cai, Chen-Leng -- Martin, Jody C -- Sun, Yunfu -- Cui, Li -- Wang, Lianchun -- Ouyang, Kunfu -- Yang, Lei -- Bu, Lei -- Liang, Xingqun -- Zhang, Xiaoxue -- Stallcup, William B -- Denton, Christopher P -- McCulloch, Andrew -- Chen, Ju -- Evans, Sylvia M -- P41 RR005351/RR/NCRR NIH HHS/ -- T32 HL007444/HL/NHLBI NIH HHS/ -- England -- Nature. 2008 Jul 3;454(7200):104-8. doi: 10.1038/nature06969. Epub 2008 May 14.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Skaggs School of Pharmacy, University of California, San Diego, La Jolla, California 92093, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18480752" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Differentiation ; *Cell Lineage ; Gene Expression Regulation, Developmental ; Heart/growth & development ; Lac Operon/genetics ; Mice ; Myocardium/*cytology/metabolism ; Myocytes, Cardiac/*cytology/metabolism ; Myocytes, Smooth Muscle/metabolism ; Pericardium/*cytology/*metabolism ; Stem Cells/*cytology/metabolism ; T-Box Domain Proteins/genetics/*metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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