Comparison of Renibacterium salmoninarum isolates by antigenic analysis.

Abstract

Antigens of seven isolates of Renibacterium salmoninarum were compared serologically using immunoelectrophoretic techniques. Seven common components were identified by their electrophoretic mobilities in each antigenic profile. One of these common components designated antigen F, was partially purified by ammonium sulfate precipitation and gel filtration. Cross adsorption analysis showed antigen F to be the major surface antigen of R. salmoninarum. This antigen was heat stable and its molecular weight was estimated by sodium dodecyl sulfate-polyacrylamide gel electrophoresis to be 57, 000.