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  • 1
    Publication Date: 2011-07-22
    Description: Gene expression originates from individual DNA molecules within living cells. Like many single-molecule processes, gene expression and regulation are stochastic, that is, sporadic in time. This leads to heterogeneity in the messenger-RNA and protein copy numbers in a population of cells with identical genomes. With advanced single-cell fluorescence microscopy, it is now possible to quantify transcriptomes and proteomes with single-molecule sensitivity. Dynamic processes such as transcription-factor binding, transcription and translation can be monitored in real time, providing quantitative descriptions of the central dogma of molecular biology and the demonstration that a stochastic single-molecule event can determine the phenotype of a cell.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3600414/" 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/PMC3600414/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Li, Gene-Wei -- Xie, X Sunney -- DP1 OD000277/OD/NIH HHS/ -- England -- Nature. 2011 Jul 20;475(7356):308-15. doi: 10.1038/nature10315.〈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/21776076" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Survival ; Cells/*metabolism ; Gene Expression Profiling ; Gene Expression Regulation ; Humans ; Molecular Imaging/*methods ; Transcription Factors/metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 2
    Publication Date: 2016-05-05
    Description: ATP binding cassette (ABC) transporters play critical roles in maintaining sterol balance in higher eukaryotes. The ABCG5/ABCG8 heterodimer (G5G8) mediates excretion of neutral sterols in liver and intestines. Mutations disrupting G5G8 cause sitosterolaemia, a disorder characterized by sterol accumulation and premature atherosclerosis. Here we use crystallization in lipid bilayers to determine the X-ray structure of human G5G8 in a nucleotide-free state at 3.9 A resolution, generating the first atomic model of an ABC sterol transporter. The structure reveals a new transmembrane fold that is present in a large and functionally diverse superfamily of ABC transporters. The transmembrane domains are coupled to the nucleotide-binding sites by networks of interactions that differ between the active and inactive ATPases, reflecting the catalytic asymmetry of the transporter. The G5G8 structure provides a mechanistic framework for understanding sterol transport and the disruptive effects of mutations causing sitosterolaemia.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lee, Jyh-Yeuan -- Kinch, Lisa N -- Borek, Dominika M -- Wang, Jin -- Wang, Junmei -- Urbatsch, Ina L -- Xie, Xiao-Song -- Grishin, Nikolai V -- Cohen, Jonathan C -- Otwinowski, Zbyszek -- Hobbs, Helen H -- Rosenbaum, Daniel M -- GM053163/GM/NIGMS NIH HHS/ -- GM094575/GM/NIGMS NIH HHS/ -- GM113050/GM/NIGMS NIH HHS/ -- GM117080/GM/NIGMS NIH HHS/ -- HL72304/HL/NHLBI NIH HHS/ -- P01-HL20948/HL/NHLBI NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2016 May 4;533(7604):561-4. doi: 10.1038/nature17666.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Eugene McDermott Center for Human Growth and Development, University of Texas Southwestern Medical Center at Dallas, Dallas, Texas 75390, USA. ; Department of Biophysics, University of Texas Southwestern Medical Center, Dallas, Texas 75390, USA. ; Department of Biochemistry, University of Texas Southwestern Medical Center, Dallas, Texas 75390, USA. ; Howard Hughes Medical Institute, University of Texas Southwestern Medical Center, Dallas, Texas 75390, USA. ; Cecil &Ida Green Center for Molecular, Computational and Systems Biology, University of Texas Southwestern Medical Center, Dallas, Texas 75390, USA. ; Department of Cell Biology and Biochemistry, Texas Tech University Health Sciences Center, Lubbock, Texas 79430, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/27144356" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 3
    Publication Date: 2011-09-03
    Description: In the central nervous system, ageing results in a precipitous decline in adult neural stem/progenitor cells and neurogenesis, with concomitant impairments in cognitive functions. Interestingly, such impairments can be ameliorated through systemic perturbations such as exercise. Here, using heterochronic parabiosis we show that blood-borne factors present in the systemic milieu can inhibit or promote adult neurogenesis in an age-dependent fashion in mice. Accordingly, exposing a young mouse to an old systemic environment or to plasma from old mice decreased synaptic plasticity, and impaired contextual fear conditioning and spatial learning and memory. We identify chemokines--including CCL11 (also known as eotaxin)--the plasma levels of which correlate with reduced neurogenesis in heterochronic parabionts and aged mice, and the levels of which are increased in the plasma and cerebrospinal fluid of healthy ageing humans. Lastly, increasing peripheral CCL11 chemokine levels in vivo in young mice decreased adult neurogenesis and impaired learning and memory. Together our data indicate that the decline in neurogenesis and cognitive impairments observed during ageing can be in part attributed to changes in blood-borne factors.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3170097/" 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/PMC3170097/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Villeda, Saul A -- Luo, Jian -- Mosher, Kira I -- Zou, Bende -- Britschgi, Markus -- Bieri, Gregor -- Stan, Trisha M -- Fainberg, Nina -- Ding, Zhaoqing -- Eggel, Alexander -- Lucin, Kurt M -- Czirr, Eva -- Park, Jeong-Soo -- Couillard-Despres, Sebastien -- Aigner, Ludwig -- Li, Ge -- Peskind, Elaine R -- Kaye, Jeffrey A -- Quinn, Joseph F -- Galasko, Douglas R -- Xie, Xinmin S -- Rando, Thomas A -- Wyss-Coray, Tony -- 1 F31 AG034045-01/AG/NIA NIH HHS/ -- 1 F31 NS066676-01A1/NS/NINDS NIH HHS/ -- DP1 OD000392/OD/NIH HHS/ -- DP1 OD000392-01/OD/NIH HHS/ -- DP1 OD000392-02/OD/NIH HHS/ -- DP1 OD000392-03/OD/NIH HHS/ -- DP1 OD000392-04/OD/NIH HHS/ -- DP1 OD000392-05/OD/NIH HHS/ -- F31 AG034045/AG/NIA NIH HHS/ -- F31 AG034045-01/AG/NIA NIH HHS/ -- F31 AG034045-02/AG/NIA NIH HHS/ -- F31 AG034045-03/AG/NIA NIH HHS/ -- P30AG08017/AG/NIA NIH HHS/ -- P50 AG005136/AG/NIA NIH HHS/ -- R01 AG027505/AG/NIA NIH HHS/ -- R01 AG027505-01A1/AG/NIA NIH HHS/ -- R01 AG027505-02/AG/NIA NIH HHS/ -- R01 AG027505-03/AG/NIA NIH HHS/ -- R01 AG027505-04/AG/NIA NIH HHS/ -- R01 AG027505-05/AG/NIA NIH HHS/ -- R01 AR056849/AR/NIAMS NIH HHS/ -- R01 MH078194/MH/NIMH NIH HHS/ -- R01AG027505/AG/NIA NIH HHS/ -- T32 AI007290/AI/NIAID NIH HHS/ -- England -- Nature. 2011 Aug 31;477(7362):90-4. doi: 10.1038/nature10357.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, California 94305, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21886162" target="_blank"〉PubMed〈/a〉
    Keywords: Aging ; Animals ; Chemokine CCL11/blood/cerebrospinal fluid/metabolism/pharmacology ; Chemokines/*blood/cerebrospinal fluid/*metabolism ; Female ; Learning/drug effects/*physiology ; Learning Disorders/blood/cerebrospinal fluid/physiopathology ; Male ; Memory Disorders/blood/cerebrospinal fluid/physiopathology ; Mice ; Mice, Inbred C57BL ; Neurogenesis/drug effects/*physiology ; Parabiosis ; Plasma/chemistry ; Time Factors
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 4
    Publication Date: 2012-12-22
    Description: Meiotic recombination creates genetic diversity and ensures segregation of homologous chromosomes. Previous population analyses yielded results averaged among individuals and affected by evolutionary pressures. We sequenced 99 sperm from an Asian male by using the newly developed amplification method-multiple annealing and looping-based amplification cycles-to phase the personal genome and map recombination events at high resolution, which are nonuniformly distributed across the genome in the absence of selection pressure. The paucity of recombination near transcription start sites observed in individual sperm indicates that such a phenomenon is intrinsic to the molecular mechanism of meiosis. Interestingly, a decreased crossover frequency combined with an increase of autosomal aneuploidy is observable on a global per-sperm basis.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3590491/" 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/PMC3590491/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lu, Sijia -- Zong, Chenghang -- Fan, Wei -- Yang, Mingyu -- Li, Jinsen -- Chapman, Alec R -- Zhu, Ping -- Hu, Xuesong -- Xu, Liya -- Yan, Liying -- Bai, Fan -- Qiao, Jie -- Tang, Fuchou -- Li, Ruiqiang -- Xie, X Sunney -- HG005097-1/HG/NHGRI NIH HHS/ -- HG005613-01/HG/NHGRI NIH HHS/ -- R01 HG005097/HG/NHGRI NIH HHS/ -- RC2 HG005613/HG/NHGRI NIH HHS/ -- New York, N.Y. -- Science. 2012 Dec 21;338(6114):1627-30. doi: 10.1126/science.1229112.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23258895" target="_blank"〉PubMed〈/a〉
    Keywords: Aneuploidy ; Chromosome Segregation ; Chromosomes, Human/genetics ; Crossing Over, Genetic ; *Genome, Human ; Haplotypes ; Heterozygote ; High-Throughput Nucleotide Sequencing ; Humans ; Male ; *Meiosis ; Middle Aged ; *Nucleic Acid Amplification Techniques ; *Recombination, Genetic ; Sequence Analysis, DNA/*methods ; Single-Cell Analysis ; Spermatozoa/*physiology ; Transcription Initiation Site
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 5
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2013-12-21
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Xie, X Sunney -- New York, N.Y. -- Science. 2013 Dec 20;342(6165):1457-9. doi: 10.1126/science.1248859.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138, USA, and Biodynamic Optical Imaging Center (BIOPIC), Peking University, Beijing 100871, China.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24357307" target="_blank"〉PubMed〈/a〉
    Keywords: Catalysis ; Enzymes/*chemistry ; Fluorescence ; Kinetics ; Molecular Imaging ; Optical Imaging
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
    Publication Date: 2011-09-10
    Description: Bacterial chromosomes are confined in submicrometer-sized nucleoids. Chromosome organization is facilitated by nucleoid-associated proteins (NAPs), but the mechanisms of action remain elusive. In this work, we used super-resolution fluorescence microscopy, in combination with a chromosome-conformation capture assay, to study the distributions of major NAPs in live Escherichia coli cells. Four NAPs--HU, Fis, IHF, and StpA--were largely scattered throughout the nucleoid. In contrast, H-NS, a global transcriptional silencer, formed two compact clusters per chromosome, driven by oligomerization of DNA-bound H-NS through interactions mediated by the amino-terminal domain of the protein. H-NS sequestered the regulated operons into these clusters and juxtaposed numerous DNA segments broadly distributed throughout the chromosome. Deleting H-NS led to substantial chromosome reorganization. These observations demonstrate that H-NS plays a key role in global chromosome organization in bacteria.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3329943/" 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/PMC3329943/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wang, Wenqin -- Li, Gene-Wei -- Chen, Chongyi -- Xie, X Sunney -- Zhuang, Xiaowei -- GM 096450/GM/NIGMS NIH HHS/ -- R01 GM096450/GM/NIGMS NIH HHS/ -- R01 GM096450-03/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2011 Sep 9;333(6048):1445-9. doi: 10.1126/science.1204697.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physics, Harvard University, Cambridge, MA 02138, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21903814" target="_blank"〉PubMed〈/a〉
    Keywords: Binding Sites ; Cell Division ; Chromosomes, Bacterial/*metabolism/*ultrastructure ; DNA, Bacterial/chemistry/*metabolism ; DNA-Binding Proteins/metabolism ; Escherichia coli K12/genetics/metabolism/*ultrastructure ; Escherichia coli Proteins/chemistry/genetics/*metabolism ; Factor For Inversion Stimulation Protein/metabolism ; Fimbriae Proteins/chemistry/genetics/*metabolism ; Gene Expression Regulation, Bacterial ; Genetic Loci ; Genome, Bacterial ; Integration Host Factors/metabolism ; Molecular Chaperones/metabolism ; Nucleic Acid Conformation ; Operon ; Protein Multimerization ; Protein Structure, Tertiary ; Recombinant Fusion Proteins/metabolism ; Repressor Proteins/chemistry/genetics/*metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 7
    Publication Date: 2012-12-22
    Description: Kindred cells can have different genomes because of dynamic changes in DNA. Single-cell sequencing is needed to characterize these genomic differences but has been hindered by whole-genome amplification bias, resulting in low genome coverage. Here, we report on a new amplification method-multiple annealing and looping-based amplification cycles (MALBAC)-that offers high uniformity across the genome. Sequencing MALBAC-amplified DNA achieves 93% genome coverage 〉/=1x for a single human cell at 25x mean sequencing depth. We detected digitized copy-number variations (CNVs) of a single cancer cell. By sequencing three kindred cells, we were able to identify individual single-nucleotide variations (SNVs), with no false positives detected. We directly measured the genome-wide mutation rate of a cancer cell line and found that purine-pyrimidine exchanges occurred unusually frequently among the newly acquired SNVs.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3600412/" 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/PMC3600412/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zong, Chenghang -- Lu, Sijia -- Chapman, Alec R -- Xie, X Sunney -- HG005097-1/HG/NHGRI NIH HHS/ -- HG005613-01/HG/NHGRI NIH HHS/ -- R01 HG005097/HG/NHGRI NIH HHS/ -- RC2 HG005613/HG/NHGRI NIH HHS/ -- T32 GM008313/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2012 Dec 21;338(6114):1622-6. doi: 10.1126/science.1229164.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23258894" target="_blank"〉PubMed〈/a〉
    Keywords: Adenocarcinoma/genetics ; Cell Line, Tumor ; Colorectal Neoplasms/*genetics ; *DNA Copy Number Variations ; DNA, Neoplasm/*genetics ; Genome, Human ; High-Throughput Nucleotide Sequencing ; Humans ; Mutation Rate ; Nucleic Acid Amplification Techniques/*methods ; *Point Mutation ; *Polymorphism, Single Nucleotide ; Sequence Analysis, DNA/methods ; *Single-Cell Analysis
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 8
    Publication Date: 2015-11-28
    Description: Vibrational spectroscopy has been extensively applied to the study of molecules in gas phase, in condensed phase, and at interfaces. The transition from spectroscopy to spectroscopic imaging of living systems, which allows the spectrum of biomolecules to act as natural contrast, is opening new opportunities to reveal cellular machinery and to enable molecule-based diagnosis. Such a transition, however, involves more than a simple combination of spectrometry and microscopy. We review recent efforts that have pushed the boundary of the vibrational spectroscopic imaging field in terms of spectral acquisition speed, detection sensitivity, spatial resolution, and imaging depth. We further highlight recent applications in functional analysis of single cells and in label-free detection of diseases.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cheng, Ji-Xin -- Xie, X Sunney -- New York, N.Y. -- Science. 2015 Nov 27;350(6264):aaa8870. doi: 10.1126/science.aaa8870.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Weldon School of Biomedical Engineering and Department of Chemistry, Purdue University, West Lafayette, IN 47907, USA. jcheng@purdue.edu xie@chemistry.harvard.edu. ; Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138, USA. jcheng@purdue.edu xie@chemistry.harvard.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26612955" target="_blank"〉PubMed〈/a〉
    Keywords: 3T3-L1 Cells ; Animals ; Biology ; Gases ; Humans ; Medicine ; Mice ; Microscopy/*methods ; Molecular Imaging/*methods ; Sensitivity and Specificity ; Spectrum Analysis, Raman/*methods ; Vibration
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    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 9
    Publication Date: 2013-02-16
    Description: Allostery is well documented for proteins but less recognized for DNA-protein interactions. Here, we report that specific binding of a protein on DNA is substantially stabilized or destabilized by another protein bound nearby. The ternary complex's free energy oscillates as a function of the separation between the two proteins with a periodicity of ~10 base pairs, the helical pitch of B-form DNA, and a decay length of ~15 base pairs. The binding affinity of a protein near a DNA hairpin is similarly dependent on their separation, which-together with molecular dynamics simulations-suggests that deformation of the double-helical structure is the origin of DNA allostery. The physiological relevance of this phenomenon is illustrated by its effect on gene expression in live bacteria and on a transcription factor's affinity near nucleosomes.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3586787/" 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/PMC3586787/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kim, Sangjin -- Brostromer, Erik -- Xing, Dong -- Jin, Jianshi -- Chong, Shasha -- Ge, Hao -- Wang, Siyuan -- Gu, Chan -- Yang, Lijiang -- Gao, Yi Qin -- Su, Xiao-dong -- Sun, Yujie -- Xie, X Sunney -- DP1 OD000277/OD/NIH HHS/ -- New York, N.Y. -- Science. 2013 Feb 15;339(6121):816-9. doi: 10.1126/science.1229223.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23413354" target="_blank"〉PubMed〈/a〉
    Keywords: *Allosteric Regulation ; Base Sequence ; Binding Sites ; DNA, B-Form/*chemistry ; DNA-Binding Proteins/*chemistry ; DNA-Directed RNA Polymerases/chemistry ; Escherichia coli/genetics/metabolism ; Gene Expression ; *Gene Expression Regulation, Bacterial ; Lac Repressors/chemistry ; Molecular Dynamics Simulation ; Nucleosomes/chemistry ; Protein Binding ; Protein Structure, Tertiary ; Receptors, Glucocorticoid/chemistry ; Transcription Factors/*chemistry ; Viral Proteins/chemistry
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 10
    ISSN: 0168-9002
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
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