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  • 1
    Electronic Resource
    Electronic Resource
    Serological properties and processing in Escherichia coli K12 of OmpV fusion proteins of Vibrio cholerae (1986)
    Springer
    Molecular genetics and genomics 205 (1986), S. 501-506 
    Details
    ISSN: 1617-4623
    Keywords: Signal sequence ; Antigenic epitopes ; Outer membrane protein ; Immunogenicity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Fusion proteins comprising the amino-terminal 99 amino acids of the bacteriophage MS2 replicase and various portions of OmpV a major outer membrane protein of Vibrio cholerae were expressed in Escherichia coli K12. These fusions were expressed under the control of the PL promoter of bacteriophage λ, and expression was controlled using a cIts repressor. Fusions occurring within the secretory signal sequence of OmpV gave rise to the production of mature OmpV. The efficiency, however, decreased with progressive deletion of the signal sequence within the fusions. The reactivity of various OmpV fusions with antisera raised against purified OmpV and whole bacteria demonstrated the existence of two antigenic domains: one present in the denatured form and another in the membrane-associated form of OmpV. These domains correspond to markedly hydrophilic regions of the protein as would be predicted for surface-exposed epitopes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00338089
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  • 2
    Electronic Resource
    Electronic Resource
    The secretion pathway of IgA protease-type proteins in gram-negative bacteria (1993)
    New York, NY : Wiley-Blackwell
    BioEssays 15 (1993), S. 799-805 
    Details
    ISSN: 0265-9247
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: The pathogenic, Gram-negative bacteria, Neisseria gon-orrhoeae, Neisseria meningitidis and Haemophilus influenzae, secrete immunoglobulin A1 proteases into their extracellular surroundings. An extraordinary feature in the secretory pathway of these putative virulence factors is a self-directed outer membrane transport step allowing the proteins to be secreted autonomously, even from foreign Gram-negative host cells like Escherichia coli. Here we summarize recent achievements in the understanding of IgA protease outer membrane translocation.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bies.950151205
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