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Intracytoplasmic Localization of Antigenic Heat‐Stable 120‐ to 130‐Kilodalton Proteins (PS120) Common to Spotted Fever Group Rickettsiae Demonstrated by Immunoelectron Microscopy
Author(s) -
Uchiyama Tsuneo
Publication year - 1997
Publication title -
microbiology and immunology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.664
H-Index - 70
eISSN - 1348-0421
pISSN - 0385-5600
DOI - 10.1111/j.1348-0421.1997.tb01933.x
Subject(s) - immunoelectron microscopy , spotted fever , biology , antigen , rickettsia , rickettsiaceae , kilodalton , virology , rickettsiosis , rickettsiales , microbiology and biotechnology , antibody , immunology , virus , biochemistry , gene
Immunoelectron microscopy demonstrated antigenic heat‐stable 120‐ to 130‐kilodalton proteins (PS120) of spotted fever group (SFG) rickettsiae with antiserum against recombinant PS120 of Rickettsia japonica. In the case of R. japonica , a major part of the protein was shown to be localized outside the electron‐lucent nucleoid‐like region in the cytoplasm of the organisms. The other SFG rickettsiae represented a similar localization of the PS120 antigens cross‐reactive to that of R. japonica. On the other hand, a typhus group rickettsia demonstrated no antigens cross‐reactive to the PS120 of SFG rickettsiae.