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  • Book
    Ellen Hsu, Louis Du Pasquier.
    Contents:
    Evolution of immunity and pathogens
    A host-pathogen interaction reduced to first principles: Antigenic variation in T. brucei
    Antigenic variation in Plasmodium falciparum
    Polymorphic mucin-like proteins in Schistosoma mansoni, a variable antigen and a key component of the compatibility between the schistosome and its snail host
    Fibrinogen-related proteins (FREP) in mollusks
    Somatic and germline diversification of a putative immunoreceptor within one phylum: Dscam in arthropods
    An immune effector system in the Protochordate gut sheds light on fundamental aspects of vertebrate immunity
    Variable lymphocyte receptors: a current view
    Antibody repertoire in fish
    Unique features of fish immune repertoires: particularities of the adaptive immunity within the largest group of vertebrates
    The evolution and structure of atypical T cell receptors
    Diversification of the primary antibody repertoire by AID-mediated gene conversion
    Antibody isotype switching in vertebrates.
    Digital Access Springer 2015
    Access via Results and problems in cell differentiation ; 2015; 57
    Location
    Version
    Call Number
    Items
    Results and problems in cell differentiation ; 2015; 57
    2015
    QH607 .R4 v.57 2015
  • Article
    Maeda A.
    Biochim Biophys Acta. 1977 Jan 03;474(1):30-43.
    A fraction containing a variety of low molecular weight substances was extracted into 80% aqueous acetone from both a colicin E2-treated cell culture of Escherichia coli and an untreated one. The extract was divided into five fractions by Sephadex G15 chromatography. One of them, Fraction B, was separated into three subfractions by Sephadex G10 chromatography. Two subfractions, Fraction BI and Fraction BII, were further fractionated by several chromatographic systems. DNA was incubated with an aliquot from each of these fractions and was then analyzed by sedimentation in an alkaline sucrose density gradient. The activity which caused a decrease in the sedimentation coefficient of the DNA was found in some of these fractions. The activity from colicin E2-treated cells was compared with that from untreated ones. It was revealed that colicin E2 induces some increases in the activity toward DNA in one of the subfractions, Fraction BI, and also causes the appearance of a new species in another fraction, Fraction BII, which potentiates the activity in Fraction BI. These colicin E2-induced changes appeared at 5 min after the addition of colicin E2. The possible significance of such reactions for the action of colicin E2 are discussed.
    Digital Access Access Options