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  • Title: Antigenicity and immunogenicity of Hypoderma lineatum soluble proteins in the bovine host.
    Author: Pruett JH, Temeyer KB, Burkett BK.
    Journal: Vet Parasitol; 1988 Jul; 29(1):53-63. PubMed ID: 2459835.
    Abstract:
    Protein species found in soluble crude extracts of Hypoderma lineatum (common cattle grub) 1st-instar larvae (HL1) were separated by non-denaturing and denaturing polyacrylamide gel electrophoresis (PAGE) and analyzed for antigenicity by Western blotting using serum from H. lineatum-infested and vaccinated cattle. All HL1 proteins resolved by non-denaturing PAGE were found to be antigenic in the infested bovine host. Treatment of the proteins with sodium dodecyl sulfate and 2-mercaptoethanol destroyed the ability of hypodermin B and the Peak 2 proteins from DEAE-ion exchange HPLC to be bound by antibody. The principal proteins, hypodermin A and hypodermin C (collagenase), appear to be the most immunogenic of the larval proteins. Although having similar amino acid composition, hypodermin A did not appear to share an antigenic epitope with the most prevalent protein, hypodermin C. These results may allow for the selection of proteins to be used in vaccine trials and studies of protective immunological mechanisms associated with acquired resistance to H. lineatum infestation in the bovine host.
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