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. 1976 Jul;14(1):155–162. doi: 10.1128/iai.14.1.155-162.1976

Proteins of typhus and spotted fever group rickettsiae.

C S Eisemann, J V Osterman
PMCID: PMC420858  PMID: 820639

Abstract

Purified radioactive rickettsiae were obtained from irradiated and cycloheximide-inhibited L cells, and their proteins were analyzed by polyacrylamide gel electrophoresis. Rickettsial species could be distinguished by comparing the relative mobilities of constituent proteins after migration of two differentially labeled preparations in a single gel. Distinct differences were observed in gel patterns of rickettsiae from the typhus and spotted fever groups, as well as with different species within a group. Rickettsial organisms causing murine and epidemic typhus were clearly distinguished, as were the causative agentsof boutonneuse fever and rickettsialpox. The use of both internal and external molecular weight standards allowed molecular weight estimates for 19 proteins from both Rickettsia prowazekii and Rickettsia conorii. A flexible system for designating rickettsial proteins is proposed that lends itself to modification as more detailed analysis progresses.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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