Gene Symbol: RP833
Description: hypothetical protein
Species: Rickettsia prowazekii str. Madrid E

Top Publications

  1. Billings A, Teltow G, Weaver S, Walker D. Molecular characterization of a novel Rickettsia species from Ixodes scapularis in Texas. Emerg Infect Dis. 1998;4:305-9 pubmed
    ..australis for the 17 kDa gene, R. helvetica for gltA, and R. montana for rompA. The new organism, provisionally designated as genotype Cooleyi, is highly divergent in three conserved genes from recognized Rickettsia species. ..
  2. Beninati T, Lo N, Noda H, Esposito F, Rizzoli A, Favia G, et al. First detection of spotted fever group rickettsiae in Ixodes ricinus from Italy. Emerg Infect Dis. 2002;8:983-6 pubmed
    ..Using molecular methods, we detected three different spotted fever group rickettsiae, including Rickettsia helvetica. Our results raise the possibility that bacteria other than R. conorii are involved in rickettsial diseases in Italy. ..
  3. Hirunkanokpun S, Kittayapong P, Cornet J, Gonzalez J. Molecular evidence for novel tick-associated spotted fever group rickettsiae from Thailand. J Med Entomol. 2003;40:230-7 pubmed
    ..Results indicated that the three Thai rickettsiae detected in this study represent new rickettsial genotypes and form a separate cluster among the spotted fever group rickettsiae...
  4. Baird R, Lloyd M, Stenos J, Ross B, Stewart R, Dwyer B. Characterization and comparison of Australian human spotted fever group rickettsiae. J Clin Microbiol. 1992;30:2896-902 pubmed
    ..Thus, the rickettsiae isolated from patients with FISF differ from those from patients with QTT and may represent a new rickettsial species. ..
  5. Furuya Y, Katayama T, Yoshida Y, Kaiho I. Specific amplification of Rickettsia japonica DNA from clinical specimens by PCR. J Clin Microbiol. 1995;33:487-9 pubmed
    ..japonica and also the DNA from blood clots of patients with spotted fever group rickettsiosis. The results indicated that this method is suitable for the diagnosis of spotted fever group rickettsiosis in Japan...
  6. Simser J, Palmer A, Munderloh U, Kurtti T. Isolation of a spotted fever group Rickettsia, Rickettsia peacockii, in a Rocky Mountain wood tick, Dermacentor andersoni, cell line. Appl Environ Microbiol. 2001;67:546-52 pubmed publisher
    ..Establishing cell lines from embryonic tissues of ticks offers an alternative technique for isolation of rickettsiae that are transovarially transmitted...
  7. Loftis A, Reeves W, Szumlas D, Abbassy M, Helmy I, Moriarity J, et al. Surveillance of Egyptian fleas for agents of public health significance: Anaplasma, Bartonella, Coxiella, Ehrlichia, Rickettsia, and Yersinia pestis. Am J Trop Med Hyg. 2006;75:41-8 pubmed
    ..cheopis. Novel Bartonella genotypes were detected in X. cheopis and L. segnis from three cities. Coxiella burnetii was detected in two fleas. Anaplasma, Ehrlichia, and Y. pestis were not detected...
  8. Anderson B, Regnery R, Carlone G, Tzianabos T, McDade J, Fu Z, et al. Sequence analysis of the 17-kilodalton-antigen gene from Rickettsia rickettsii. J Bacteriol. 1987;169:2385-90 pubmed
    ..The deduced amino acid sequence contained a hydrophobic sequence near the amino terminus that resembled signal peptides described for E. coli. The carboxy terminus was hydrophilic in nature and probably contained the exposed epitopes. ..
  9. Labruna M, Whitworth T, Horta M, Bouyer D, McBride J, Pinter A, et al. Rickettsia species infecting Amblyomma cooperi ticks from an area in the state of São Paulo, Brazil, where Brazilian spotted fever is endemic. J Clin Microbiol. 2004;42:90-8 pubmed
    ..These results do not support the role of A. cooperi in the ecology of R. rickettsii in the area studied, but they add two more species of rickettsiae to the poorly developed list of species occurring in ticks in South America...

More Information


  1. Werren J, Hurst G, Zhang W, Breeuwer J, Stouthamer R, Majerus M. Rickettsial relative associated with male killing in the ladybird beetle (Adalia bipunctata). J Bacteriol. 1994;176:388-94 pubmed
    ..Discovery of a close relative of rickettsias associated with sex ratio distortion in insects has implications for the evolution and population dynamics of this bacterial genus...
  2. Beninati T, Genchi C, Torina A, Caracappa S, Bandi C, Lo N. Rickettsiae in ixodid ticks, Sicily. Emerg Infect Dis. 2005;11:509-11 pubmed publisher
  3. Bouyer D, Stenos J, Crocquet Valdes P, Moron C, Popov V, Zavala Velazquez J, et al. Rickettsia felis: molecular characterization of a new member of the spotted fever group. Int J Syst Evol Microbiol. 2001;51:339-47 pubmed publisher
    ..felis as a member of the SFG. The organism is passed trans-stadially and transovarially, and infection in the cat flea has been observed in the midgut, tracheal matrix, muscle, hypodermis, ovaries and testes...
  4. Reeves W, Nelder M, Korecki J. Bartonella and Rickettsia in fleas and lice from mammals in South Carolina, U.S.A. J Vector Ecol. 2005;30:310-5 pubmed
    ..Cat fleas harbored one of two novel genotypes of Rickettsia. A third novel Rickettsia was detected in Orchopeas howardi from an eastern gray squirrel...
  5. Ishikura M, Fujita H, Ando S, Matsuura K, Watanabe M. Phylogenetic analysis of spotted fever group Rickettsiae isolated from ticks in Japan. Microbiol Immunol. 2002;46:241-7 pubmed
    ..japonica, and 5 Ixodes isolates were associated with the R. helvetica. Based on previous genotypic and antigenic data, and the phylogenetic analysis presented here, strain AT-1 should be considered as a new species among SFG rickettsiae...
  6. von Der Schulenburg J, Habig M, Sloggett J, Webberley K, Bertrand D, Hurst G, et al. Incidence of male-killing Rickettsia spp. (alpha-proteobacteria) in the ten-spot ladybird beetle Adalia decempunctata L. (Coleoptera: Coccinellidae). Appl Environ Microbiol. 2001;67:270-7 pubmed publisher
    ..We discuss the importance of these findings to our understanding of the evolution and dynamics of symbiotic associations between male-killing bacteria and their insect hosts...
  7. Baldridge G, Burkhardt N, Simser J, Kurtti T, Munderloh U. Sequence and expression analysis of the ompA gene of Rickettsia peacockii, an endosymbiont of the Rocky Mountain wood tick, Dermacentor andersoni. Appl Environ Microbiol. 2004;70:6628-36 pubmed publisher
    ..peacockii. Double immunolabeling studies revealed actin tail structures in tick cells infected with R. rickettsii strain Hlp#2 but not in cells infected with R. peacockii...
  8. Anderson B, Baumstark B, Bellini W. Expression of the gene encoding the 17-kilodalton antigen from Rickettsia rickettsii: transcription and posttranslational modification. J Bacteriol. 1988;170:4493-500 pubmed
  9. Ishikura M, Ando S, Shinagawa Y, Matsuura K, Hasegawa S, Nakayama T, et al. Phylogenetic analysis of spotted fever group rickettsiae based on gltA, 17-kDa, and rOmpA genes amplified by nested PCR from ticks in Japan. Microbiol Immunol. 2003;47:823-32 pubmed
    ..ovatus and I. persulcatus were identical with R. helvetica. Genotype IX detected from I. nipponensis was genetically close to the strains IRS3, IRS4, and IrR/Munich isolated from I. ricinus in Slovakia and German...
  10. Labruna M, Whitworth T, Bouyer D, McBride J, Camargo L, Camargo E, et al. Rickettsia bellii and Rickettsia amblyommii in Amblyomma ticks from the State of Rondônia, Western Amazon, Brazil. J Med Entomol. 2004;41:1073-81 pubmed
    ..amblyommii infection of Vero cells was analyzed by transmission electron microscopy. This study adds South America to the known geographic distribution of R. amblyommii and reports rickettsiae in six Amblyomma species for the first time...
  11. Labruna M, Camargo L, Camargo E, Walker D. Detection of a spotted fever group Rickettsia in the tick Haemaphysalis juxtakochi in Rondonia, Brazil. Vet Parasitol. 2005;127:169-74 pubmed
    ..juxtakochi from the Western Amazon area of Brazil. Genetic analyses showed R300 to be closely related to R. rhipicephali. ..
  12. Stenos J, Roux V, Walker D, Raoult D. Rickettsia honei sp. nov., the aetiological agent of Flinders Island spotted fever in Australia. Int J Syst Bacteriol. 1998;48 Pt 4:1399-404 pubmed publisher
    ..Indeed, it is proposed that TT-118 is a strain of R. honei which was previously isolated in Thailand. These results elucidate the presence of a unique SFG rickettsial species in Australasia...
  13. Billings A, Yu X, Teel P, Walker D. Detection of a spotted fever group rickettsia in Amblyomma cajennense (Acari: Ixodidae) in south Texas. J Med Entomol. 1998;35:474-8 pubmed
    ..cajennense ticks in Texas and the United States. If this rickettsia is pathogenic, exposure to infected A. cajennense ticks may pose a previously unrecognized health risk to people who have been fed upon by these ticks...
  14. Anderson B, Tzianabos T. Comparative sequence analysis of a genus-common rickettsial antigen gene. J Bacteriol. 1989;171:5199-201 pubmed