ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 19 (1985), S. 69-76 
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 61 (1989), S. 811-812 
    ISSN: 0009-286X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 3
    ISSN: 0730-2312
    Keywords: N-acetylgalactosaminyltransferase ; neural retina ; monoclonal antibodies ; enzyme ; acceptor ; cell surface complex ; Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Notes: Intact embryonic chick neural retina cells have at their surface an N-acetylgalactosaminyltransferase which catalyzes the incorporation of N-acetylgalactosamine from UDP-N-acetylgalactosamine into endogenous macromolecular acceptors. The enzyme along with its endogenous acceptors can be isolated as a particulate complex following treatment of membrane-enriched fractions with Triton X-100. In this paper we report on two separate fusions generating monoclonal antibodies: one using as immunogen the particulate complex and the second using as immunogen a soluble N-acetylgalactosaminyltransferase found in tissue-culture-conditioned medium which lacks endogenous acceptor activity. Antibodies from both fusions recognize an antigen which is tightly associated with the particulate transferase/acceptor complex and a soluble antigen having N-acetyl-galactosaminyltransferase activity toward exogenously added acceptors. The antibodies recognize a component of ca Mr 220,000, which shows N-acetylgalactosaminyltransferase activity after SDS-gel electrophoresis and transfer to nitrocellulose. This component comigrates on two-dimensional gel electrophoresis with an iodinatable cell surface component whose presence at the cell surface correlates with endogenous transferase activity. We conclude that the antibodies recognize the transferase enzyme itself. Immunohistochemical analysis shows that the enzyme is initially localized throughout the embryonic neural retina in a pattern indicative of a cell surface disposition but becomes restricted to the outer plexiform layer and to outer segments in the adult.
    Additional Material: 12 Ill.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 4
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthesis, Vibrational Spectra, and Crystal Structure Analysis of Di- and Trifluoro-tetramethylammonium SaltsThe tetramethylammonium salts (CH3)3NCH2F+ (II), (CH3)3NCHF2+ (III), and (CH3)3NCF3+ (IV) were prepared by quaternation of the corresponding fluoromethylamines. III was also generated from (CH3)3N and Zn/CF2Br2/KF in acetonitrile. II, III, and IV were characterized by NMR and vibrational spectroscopy, a normal coordinate analysis being undertaken for IV. The crystal structures of the iodides of III and IV have been determined. In both cations the N—CH3 distances are on the average (III 1.508(2) Å; IV 1.514(5) Å) longer than the N—CF valencies (III 1.497(4) Å; IV 1.491(6) Å).
    Notes: Ausgehend von den zugehörigen Aminen wurden die fluorsubstituierten Tetramethylammonium-Salze (CH3)3NCH2F+ (II), (CH3)3NCHF2+ (III) und (CH3)3NCF3+ (IV) durch Quaternierung dargestellt. III bildet sich auch aus (CH3)3N und Zn/CF2Br2/KF in Acetonitril. II, III und IV wurden durch KMR-Spektroskopie charakterisiert und schwingungsspektroskopisch unter Einschluß einer Normalkoordinatenanalyse für IV untersucht. Von den Iodiden von III und IV wurden Kristallstrukturanalysen durchgeführt. In beiden Kationen sind die N—CH3-Abstände im Schnitt (III 1,508(2) Å; IV 1,514(5) Å) länger als die N—CF-Bindungen (III 1,497(4) Å; IV 1,491(6)Å).
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...