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  • Chemistry  (7)
  • Humans  (4)
  • Polymer and Materials Science  (3)
  • Imaging, Three-Dimensional
  • 2005-2009  (5)
  • 1970-1974  (7)
  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 107 (1974), S. 2537-2543 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthesis of 6-(Pyrido[2,3-d]pyrimidin-8-yl)hexanoic AcidsBy way of nucleophilic substitution, 4-chlorouracil (8) reacts with 6-aminohexanoic acids (9,10) to yield 6-(4-pyrimidinylamino)hexanoic acids (4,5). These undergo cyclocondensation with 3-amonoacroleins and 2-(hydroxymethylene)cycloalkanones (2), respectively, to yield 6-(pyrido[2,3-d]pyrimidin-8-yl)hexanoic acids (6,7). The 1H and 13C n. m. r. spectra of these carboxylic acids substituted with heterocycles are discussed.
    Notes: Aus 4-Chloruracil (8) und 6-Aminohexansäuren (9,10) entstehen durch nucleophile Substitution 6-(4-Pyrimidinylamino)hexansäuren (4,5). Diese cyclokondensieren mit 3-Aminoacroleinen bzw. 2-(Hydroxymethylen)cycloalkanonen (2) zu 6-(Pyrido[2,3-d]pyrimidin-8-yl)-hexansäuren (6,7). Die 1H- und 13C-NMR-Spektren dieser heterocyclisch substituierten Carbonsäuren werden diskutiert.
    Additional Material: 2 Tab.
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 84 (1972), S. 354-356 
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 2 Ill.
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  • 3
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 8 (1974), S. 33-43 
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 26 (1972), S. 171-176 
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Es wird eine NMR-Methode zur Bestimmung der ungefähren Verhältnisse zwischen aus Phenolkernen, Resorcinkernen und Formaldehyd gebildeten Gruppenin Kondensationsprodukten aus Phenol, Resorcin und Formaldehyd beschrieben.
    Notes: A method is reported, based on NMR spectroscopy, for approximate determination of the component ratios of resins formed by condensation of resorcinol, phenol and formaldehyde.
    Additional Material: 1 Tab.
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  • 5
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 27 (1972), S. 159-164 
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Es wurde eine Voruntersuchung des Einflusses unternommen, den die Verschiebereagenzien Tris-(dipivaloylmethano)-europium uncl Tris-(dipivaloylmethano)-pra-seodym auf das NMR-Spektrum des Diglyzidyläthers des Bisphenol A ausüben. Es ergab sich, daß die Signale der am Epoxidring anliegenden Protonen durch den Zusatz dieser Chelate weit mehr als die Signale der exozyklischen -OCH2-Gruppen verschoben werden. Die Verschiebung kann man durch den Zusatz eines Alkohols rückgängig machen, der vorzugsweise mit dem Verschiebemittel reagiert.
    Notes: A preliminary study has been made of the effects of the shift reagents Eu (DPM)3 and Pr(DPM)3 on the NMR spectrum of Bisphenol A diglycidyl ether (I). Protons attached to the epoxy ring were observed to shift appreciably more than protons of the exocyclic —OCH2— group, on addition of these chelates. The shifts could be reversed by addition of an alcohol, which interacted preferentially with the shift reagent.
    Additional Material: 4 Ill.
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  • 6
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 27 (1972), S. 151-157 
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Es wurden die Verschiebungen untersucht, die durch Tris-(dipivaloylmethano)-europium und Tris-(dipivaloylmethano)-praseodym im NMR- Spektrum versehiedener Derivate substituierter Phenole hervorgerufen werden. Der Zweck dieser Arbeiten war, die Möglichkeiten zu erfassen, die diese Verschiebereagenzien als Hilfsmittel in der NMR-Analyse von Phenolharzen bieten, und Information über Verschiebungen bei Molekülen zu gewinnen, die mehr als eine Koordinationsposition besitzen.
    Notes: An investigation into the shifts induced in the NMR spectra of some derivatives of substituted phenols by tris(dipivalomethanato)europium and tris(dipivalomethanato)praseodymium is reported. The phenol derivatives were studied to ascertain the possible utility of the shift reagents as an aid in the analysis of phenolformaldehyde resins by NMR spectroscopy, and to gain information on induced shifts with molecules having more than one possible co-ordination site.
    Additional Material: 1 Tab.
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  • 7
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Angewandte Chemie International Edition in English 11 (1972), S. 307-309 
    ISSN: 0570-0833
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 2 Tab.
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  • 8
    Publication Date: 2008-05-10
    Description: We present a draft genome sequence of the platypus, Ornithorhynchus anatinus. This monotreme exhibits a fascinating combination of reptilian and mammalian characters. For example, platypuses have a coat of fur adapted to an aquatic lifestyle; platypus females lactate, yet lay eggs; and males are equipped with venom similar to that of reptiles. Analysis of the first monotreme genome aligned these features with genetic innovations. We find that reptile and platypus venom proteins have been co-opted independently from the same gene families; milk protein genes are conserved despite platypuses laying eggs; and immune gene family expansions are directly related to platypus biology. Expansions of protein, non-protein-coding RNA and microRNA families, as well as repeat elements, are identified. Sequencing of this genome now provides a valuable resource for deep mammalian comparative analyses, as well as for monotreme biology and conservation.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2803040/" 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/PMC2803040/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Warren, Wesley C -- Hillier, LaDeana W -- Marshall Graves, Jennifer A -- Birney, Ewan -- Ponting, Chris P -- Grutzner, Frank -- Belov, Katherine -- Miller, Webb -- Clarke, Laura -- Chinwalla, Asif T -- Yang, Shiaw-Pyng -- Heger, Andreas -- Locke, Devin P -- Miethke, Pat -- Waters, Paul D -- Veyrunes, Frederic -- Fulton, Lucinda -- Fulton, Bob -- Graves, Tina -- Wallis, John -- Puente, Xose S -- Lopez-Otin, Carlos -- Ordonez, Gonzalo R -- Eichler, Evan E -- Chen, Lin -- Cheng, Ze -- Deakin, Janine E -- Alsop, Amber -- Thompson, Katherine -- Kirby, Patrick -- Papenfuss, Anthony T -- Wakefield, Matthew J -- Olender, Tsviya -- Lancet, Doron -- Huttley, Gavin A -- Smit, Arian F A -- Pask, Andrew -- Temple-Smith, Peter -- Batzer, Mark A -- Walker, Jerilyn A -- Konkel, Miriam K -- Harris, Robert S -- Whittington, Camilla M -- Wong, Emily S W -- Gemmell, Neil J -- Buschiazzo, Emmanuel -- Vargas Jentzsch, Iris M -- Merkel, Angelika -- Schmitz, Juergen -- Zemann, Anja -- Churakov, Gennady -- Kriegs, Jan Ole -- Brosius, Juergen -- Murchison, Elizabeth P -- Sachidanandam, Ravi -- Smith, Carly -- Hannon, Gregory J -- Tsend-Ayush, Enkhjargal -- McMillan, Daniel -- Attenborough, Rosalind -- Rens, Willem -- Ferguson-Smith, Malcolm -- Lefevre, Christophe M -- Sharp, Julie A -- Nicholas, Kevin R -- Ray, David A -- Kube, Michael -- Reinhardt, Richard -- Pringle, Thomas H -- Taylor, James -- Jones, Russell C -- Nixon, Brett -- Dacheux, Jean-Louis -- Niwa, Hitoshi -- Sekita, Yoko -- Huang, Xiaoqiu -- Stark, Alexander -- Kheradpour, Pouya -- Kellis, Manolis -- Flicek, Paul -- Chen, Yuan -- Webber, Caleb -- Hardison, Ross -- Nelson, Joanne -- Hallsworth-Pepin, Kym -- Delehaunty, Kim -- Markovic, Chris -- Minx, Pat -- Feng, Yucheng -- Kremitzki, Colin -- Mitreva, Makedonka -- Glasscock, Jarret -- Wylie, Todd -- Wohldmann, Patricia -- Thiru, Prathapan -- Nhan, Michael N -- Pohl, Craig S -- Smith, Scott M -- Hou, Shunfeng -- Nefedov, Mikhail -- de Jong, Pieter J -- Renfree, Marilyn B -- Mardis, Elaine R -- Wilson, Richard K -- 062023/Wellcome Trust/United Kingdom -- HG002238/HG/NHGRI NIH HHS/ -- MC_U137761446/Medical Research Council/United Kingdom -- P01 CA013106/CA/NCI NIH HHS/ -- P01 CA013106-37/CA/NCI NIH HHS/ -- R01 GM59290/GM/NIGMS NIH HHS/ -- R01 HG002939/HG/NHGRI NIH HHS/ -- R01 HG004037/HG/NHGRI NIH HHS/ -- R01 HG004037-02/HG/NHGRI NIH HHS/ -- R01HG02385/HG/NHGRI NIH HHS/ -- Medical Research Council/United Kingdom -- England -- Nature. 2008 May 8;453(7192):175-83. doi: 10.1038/nature06936.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Genome Sequencing Center, Washington University School of Medicine, Campus Box 8501, 4444 Forest Park Avenue, St Louis, Missouri 63108, USA. wwarren@wustl.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18464734" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Composition ; Dentition ; *Evolution, Molecular ; Female ; Genome/*genetics ; Genomic Imprinting/genetics ; Humans ; Immunity/genetics ; Male ; Mammals/genetics ; MicroRNAs/genetics ; Milk Proteins/genetics ; Phylogeny ; Platypus/*genetics/immunology/physiology ; Receptors, Odorant/genetics ; Repetitive Sequences, Nucleic Acid/genetics ; Reptiles/genetics ; Sequence Analysis, DNA ; Spermatozoa/metabolism ; Venoms/genetics ; Zona Pellucida/metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 9
    Publication Date: 2009-05-09
    Description: The unique structural motifs and self-recognition properties of DNA can be exploited to generate self-assembling DNA nanostructures of specific shapes using a 'bottom-up' approach. Several assembly strategies have been developed for building complex three-dimensional (3D) DNA nanostructures. Recently, the DNA 'origami' method was used to build two-dimensional addressable DNA structures of arbitrary shape that can be used as platforms to arrange nanomaterials with high precision and specificity. A long-term goal of this field has been to construct fully addressable 3D DNA nanostructures. Here we extend the DNA origami method into three dimensions by creating an addressable DNA box 42 x 36 x 36 nm(3) in size that can be opened in the presence of externally supplied DNA 'keys'. We thoroughly characterize the structure of this DNA box using cryogenic transmission electron microscopy, small-angle X-ray scattering and atomic force microscopy, and use fluorescence resonance energy transfer to optically monitor the opening of the lid. Controlled access to the interior compartment of this DNA nanocontainer could yield several interesting applications, for example as a logic sensor for multiple-sequence signals or for the controlled release of nanocargos.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Andersen, Ebbe S -- Dong, Mingdong -- Nielsen, Morten M -- Jahn, Kasper -- Subramani, Ramesh -- Mamdouh, Wael -- Golas, Monika M -- Sander, Bjoern -- Stark, Holger -- Oliveira, Cristiano L P -- Pedersen, Jan Skov -- Birkedal, Victoria -- Besenbacher, Flemming -- Gothelf, Kurt V -- Kjems, Jorgen -- England -- Nature. 2009 May 7;459(7243):73-6. doi: 10.1038/nature07971.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Danish National Research Foundation: Centre for DNA Nanotechnology.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19424153" target="_blank"〉PubMed〈/a〉
    Keywords: Cryoelectron Microscopy ; DNA/*chemistry ; Imaging, Three-Dimensional ; Microscopy, Atomic Force ; Nanostructures/*chemistry ; *Nucleic Acid Conformation
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 10
    Publication Date: 2009-03-20
    Description: The human body is composed of diverse cell types with distinct functions. Although it is known that lineage specification depends on cell-specific gene expression, which in turn is driven by promoters, enhancers, insulators and other cis-regulatory DNA sequences for each gene, the relative roles of these regulatory elements in this process are not clear. We have previously developed a chromatin-immunoprecipitation-based microarray method (ChIP-chip) to locate promoters, enhancers and insulators in the human genome. Here we use the same approach to identify these elements in multiple cell types and investigate their roles in cell-type-specific gene expression. We observed that the chromatin state at promoters and CTCF-binding at insulators is largely invariant across diverse cell types. In contrast, enhancers are marked with highly cell-type-specific histone modification patterns, strongly correlate to cell-type-specific gene expression programs on a global scale, and are functionally active in a cell-type-specific manner. Our results define over 55,000 potential transcriptional enhancers in the human genome, significantly expanding the current catalogue of human enhancers and highlighting the role of these elements in cell-type-specific gene expression.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2910248/" 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/PMC2910248/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Heintzman, Nathaniel D -- Hon, Gary C -- Hawkins, R David -- Kheradpour, Pouya -- Stark, Alexander -- Harp, Lindsey F -- Ye, Zhen -- Lee, Leonard K -- Stuart, Rhona K -- Ching, Christina W -- Ching, Keith A -- Antosiewicz-Bourget, Jessica E -- Liu, Hui -- Zhang, Xinmin -- Green, Roland D -- Lobanenkov, Victor V -- Stewart, Ron -- Thomson, James A -- Crawford, Gregory E -- Kellis, Manolis -- Ren, Bing -- R01 HG004037/HG/NHGRI NIH HHS/ -- R01 HG004037-02/HG/NHGRI NIH HHS/ -- U01 HG003151/HG/NHGRI NIH HHS/ -- U01 HG003151-01/HG/NHGRI NIH HHS/ -- U01 HG003151-01S1/HG/NHGRI NIH HHS/ -- U01 HG003151-02/HG/NHGRI NIH HHS/ -- U01 HG003151-03/HG/NHGRI NIH HHS/ -- U01 HG003151-03S1/HG/NHGRI NIH HHS/ -- U01 HG003151-03S2/HG/NHGRI NIH HHS/ -- Intramural NIH HHS/ -- England -- Nature. 2009 May 7;459(7243):108-12. doi: 10.1038/nature07829. Epub 2009 Mar 18.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Ludwig Institute for Cancer Research, UCSD School of Medicine, 9500 Gilman Drive, La Jolla, California 92093-0653, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19295514" target="_blank"〉PubMed〈/a〉
    Keywords: Binding Sites ; Cell Line ; *Cell Physiological Phenomena ; Chromatin/genetics ; *Gene Expression Regulation ; Genome, Human/genetics ; HeLa Cells ; Histones/*metabolism ; Humans ; K562 Cells ; Promoter Regions, Genetic/genetics ; Transcription Factors/*genetics/metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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