[Electron microscope study of antigen constituents of the phage DDVI and its h-mutant]

A comparative study of the fine antigen structure of phage DDVI and its h mutant using neutralization reaction and the electron microscopy of the phage-antibody complex has shown that the head and the tail of these phages have common protein constituents. The bulk of the antigens located in tail's fibers and in a base plates is also identical. However, the application of the cross-adsorbed sera has shown that the phage DDVI and the h mutant differ by only one specific antigen located in the distal part of tail's fibers.