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  • 1980-1984  (6)
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  • 1
    Electronic Resource
    Electronic Resource
    Location of protein S4 on the small ribosomal subunit of E. coli and B. stearothermophilus with protein- and hapten-specific antibodies (1984)
    Springer
    Molecular genetics and genomics 197 (1984), S. 8-18 
    Details
    ISSN: 1617-4623
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary In spite of considerable effort there is still serious disagreement in the literature about the question of whether epitopes of ribosomal protein S4 are accessible for antibody binding on the intact small ribosomal subunit. We have attempted to resolve this issue using three independent approaches: (i) a re-investigation of the exposure and the location of epitopes of ribosomal protein S4 on the surface of the 30S subunit and 30S core particles of the E. coli ribosome, including rigorous controls of antibody specificity, (ii) a similar investigation of protein S4 from Bacillus stearothermophilus and (iii) the labelling of residue Cys-31 of E. coli S4 with a fluorescein derivative the accessibility of which towards a fluorescein-specific antibody was demonstrated directly by fluorimetry. In each of the three cases the antigen (E. coli S4, B. stearothermophilus S4 or fluorescein) was found to reside on the small lobe.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00327916
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Neue Chromone aus Cneoraceen (1981)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 114 (1981), S. 757-773 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: New Chromones from CneoraceaeFrom Neochamaelea pulverulenta und Cneorum tricoccon the new and old chromones 1, 2, 4, 6, 8, 10, 11, 13, 18, 20, and 24 have been isolated. Syntheses of the natural (18, 20) and synthetic chromones (29, 30, and 34-39) are described.
    Notes: Aus Neochamaelea Pulverulenta und Cneorum Tricoccon wurden bekannte und neue Chromone 1, 2, 4, 6, 8, 10, 11, 13, 18, 20 und 24 isoliert. Synthesen der natürlichen Chromone 18, 20 und der künstlichen 29, 30 und 34-39 werden beschrieben.
    Additional Material: 4 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19811140235
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Diterpene aus Cneoraceen, I. Konstitution und Konfiguration der Cneorubine (1980)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 113 (1980), S. 3848-3865 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Diterpenes from Cneoraceae, I. Constitution and Configuration of CneorubinesThe secretory cells of the leaves from Cneorum tricoccon and Neochamaelea pulverulenta contain the novel diterpenes 25, 35, 38, 39, and 42 with the common name Cneorubines.
    Notes: Die Sekretzellen der Blätter von Cneorum tricoccon und Neochamaelea pulverulenta enthalten die neuartigen Diterpene 25, 35, 38, 39 und 42 mit dem Sammelnamen Cneorubine.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19801131217
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Polycyclische Verbindungen, XIX. Die Kristall- und Molekülstruktur eines α,β-anellierten BenzoloxidsHerrn Professor Dr. Matthias Seefelder mit den besten Wünschen zum 60. Geburtstag gewidmet. (1980)
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 1980 (1980), S. 1889-1897 
    Details
    ISSN: 0170-2041
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Polycyclic Compounds, XIX. Crystal and Molecular Structure of an α,β-Annelated Benzene OxideThe benzene oxide structure of the crystalline epoxybenzocycloheptene derivative 1a is established by X-ray analysis. 1a has a nearly planar six-membered ring system; further structural parameters are discussed. Also in solution 1a predominates in the valence tautomeric equilibrium 1a ⇌ 2a. In contrast, an α,β-annelated aliphatic six-membered ring causes a remarkable preference of oxepines 2b and 2c. Possible explanations are discussed.
    Notes: Die Röntgenstrukturanalyse des Epoxybenzocyclohepten-Derivales 1a zeigt, daß die Verbindung im Kristall als Benzoloxid mit nahezu ebenem Sechsring vorliegt. Weitere Strukturparameter des relativ einfachen Arenoxids 1a werden diskutiert. Das Valenztautomeriegleichgewicht 1a ⇌ 2a liegt auch in Lösung weitgehend auf der Seite von 1a. Im Unterschied dazu führt ein α,β-aneliierter Sechsring zu einer deutlichen Bevorzugung der Oxepine 2b und 2c. Mögliche Ursachen hierfür werden diskutiert.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jlac.198019801125
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  • 5
    Electronic Resource
    Electronic Resource
    Inhaltsstoffe der Cneoraceen, VIII. Pentanortriterpene der B- und C-Reihe, Olefine (I) (1983)
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 1983 (1983), S. 1760-1797 
    Details
    ISSN: 0170-2041
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Constituents of Cneoraceae, VIII. - Pentanortriterpenes of the B- and C-Series, Olefins (I)The constitution and configuration of the fundamental cneorins B (2) and C (3) is elucidated by their chemical and spectroscopic properties and X-ray diffraction analysis. The acid-catalysed rearrangements of B (2) and C (3) to the cneorins BI (4),II (31), BIII (6) and CI (5), CII (32), CIII (7), respectively, is described.
    Notes: Die Konstitution und Konfiguration der grundlegenden Cneorine B (2) und C (3) wird durch chemischen Abbau, Auswertung der Spektren und Röntgenstrukturanalysen ermittelt. Die Säurekatalysierte Umlagerung von B (2) und C (3) zu den Cneorinen BI (4), BII (31), BIII (6), bzw. CI (5), CII (32), CIII (7) wird beschrieben.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jlac.198319831011
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  • 6
    Electronic Resource
    Electronic Resource
    Inhaltsstoffe der Cneoraceen, IX. Pentanortriterpene der B- und C-Reihe, Olefine (II) (1983)
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 1983 (1983), S. 1798-1806 
    Details
    ISSN: 0170-2041
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Constituents of Cneoraceae, IX. - Pentanortriterpenes of the B- and C-Series, Olefins (II)The missing members 3-6 of the series of olefins C25H26O7 with an Δ8(30)-double bond and different configuration at carbon atoms 7, 9, and 17, respectively, is completed. The separation and isolation of twenty-one polyterpenoid constituents from Cneorum tricoccon L. is described.
    Notes: Die Reihe der theoretisch möglichen Olefine C25H26O7 mit Δ8(30)-Doppelbindung und unterschiedlicher Konfiguration an den C-Atomen 7, 9 und 17 wird durch die noch fehlenden Stereoisomeren 3-6 ergänzt. Das Trennungsschema zur Isolierung von 21 polyterpenoiden Inhaltsstoffen aus Cneorum tricoccon L. wird beschrieben.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jlac.198319831012
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