Protein analysis of Anaplasma marginale and Anaplasma centrale by two-dimensional polyacrylamide gel electrophoresis.

Protein compositions of Anaplasma marginale and A. centrale were analyzed by two-dimensional gel electrophoresis. Both species had a major protein which was composed of 3-4 spots. The molecular weights of these two proteins were approximately 39 kDa. However, the position of these proteins in the gels were slightly different when 2 gel maps were superimposed. Five other protein spots were shared by A. marginale and A. centrale, whereas all the other protein spots were appeared to be unique to each of the species.