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  • Computational Chemistry and Molecular Modeling  (2)
  • Arabinogalactan protein  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Immunolocalization of LM2 arabinogalactan protein epitope associated with endomembranes of plant cells (2000)
    Springer
    Protoplasma 212 (2000), S. 186-196 
    Details
    ISSN: 1615-6102
    Keywords: Arabinogalactan protein ; Drosera capensis ; Endoplasmic reticulum ; Golgi apparatus ; Tonoplast ; Zea mays
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Arabinogalactan proteins (AGPs) are proteoglycans detected in high amounts at plant cell surfaces; however, details of their subcellular localization are largely unknown. Immunolocalization studies with the anti-AGP monoclonal antibody LM2 have indicated that this AGP epitope is associated with secretory compartments such as endoplasmic reticulum and Golgi apparatus within plant cells actively producing and secreting AGPs. The LM2 epitope contains a β-linked glucuronic acid residue and occurs in the polysaccharide moiety of AGPs. We have localized this AGP epitope also to the tonoplast and to cytoplasmic strands. Endomembrane association of AGPs was confirmed with two other monoclonal antibodies, JIM13 and MAC207, both reacting with carbohydrate AGP epitopes containing GlcpA-β(1→3)-D-GalpA-α(1→2)-L-Rha residues. Immunocytochemistry is supported by biochemical analysis which shows that LM2 reacts with the microsomal fraction and also with low-molecular-weight material of the detergent phase after Triton X-114 phase separation prepared from maize roots. Our results indicate that some AGP epitopes are closely associated with endomembranes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01282919
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  • 2
    Electronic Resource
    Electronic Resource
    Ab initio calculations on H transfer in the HF trimer (1985)
    New York, NY : Wiley-Blackwell
    International Journal of Quantum Chemistry 27 (1985), S. 781-786 
    Details
    ISSN: 0020-7608
    Keywords: Computational Chemistry and Molecular Modeling ; Atomic, Molecular and Optical Physics
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Systematic ab initio LCAO MO calculations with basis sets of increasing size have been performed to analyze the changes in relative stabilization energies of the two cyclic (D3h and C3h symmetry) and the noncyclic HF trimers. The results form the basis for a discussion of cyclic H-transfer reactions.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/qua.560270612
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  • 3
    Electronic Resource
    Electronic Resource
    Theoretical investigation of the electrophilic attack. IX. Ab initio study of the C2H4 · HF molecular complexFor Part VIII, see Ref. 1. (1982)
    New York, NY : Wiley-Blackwell
    International Journal of Quantum Chemistry 22 (1982), S. 631-637 
    Details
    ISSN: 0020-7608
    Keywords: Computational Chemistry and Molecular Modeling ; Atomic, Molecular and Optical Physics
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Several configurations of the C2H4 · HF molecular complex were studied using the 4-31G basis set. The most stable configuration was found to be the π hydrogen bonded complex. For this structure the interaction energy was computed employing a double-zeta basis plus polarization functions. The changes in electronic properties of the components C2H4 and HF due to complex formation were discussed.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/qua.560220312
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