ArticleJournal of clinical microbiology2000
Comparison of the nucleotide sequences of 16S rRNA, 444 Ep-ank, and groESL heat shock operon genes in naturally occurring Ehrlichia equi and human granulocytic ehrlichiosis agent isolates from Northern California.
Article in Journal of clinical microbiology, 2000. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.
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Who cites it
26 citing papers in PubMed, 69 citations in OpenAlex.
- A novel ecotype of Anaplasma phagocytophilum complex in questing Ixodes fuscipes ticks.Parasites & vectors · 2026Article
- A new genetic approach to distinguish strains of Anaplasma phagocytophilum that appear not to cause human disease.Ticks and tick-borne diseases · 2021Article
- Human-pathogenic Anaplasma spp., and Rickettsia spp. in animals in Xi'an, China.PLoS neglected tropical diseases · 2018Article
- Multiple infections ofVeterinary world · 2016Article
- Human granulocytic anaplasmosis, South Korea, 2013.Emerging infectious diseases · 2014Article
- Temporal and spatial variation in Anaplasma phagocytophilum infection in Swedish moose (Alces alces).Epidemiology and infection · 2014Article
- The phylogenetic position of Anaplasma bovis and inferences on the phylogeny of the genus Anaplasma.The Journal of veterinary medical science · 2014Article
- Molecular epidemiology of the emerging zoonosis agent Anaplasma phagocytophilum (Foggie, 1949) in dogs and ixodid ticks in Brazil.Parasites & vectors · 2013Article
- Molecular characterization reveals distinct genospecies of Anaplasma phagocytophilum from diverse North American hosts.Journal of medical microbiology · 2012Article
- Distinct host species correlate with Anaplasma phagocytophilum ankA gene clusters.Journal of clinical microbiology · 2011Article
- Divergence within the marker region of the groESL operon in Anaplasma phagocytophilum.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2008Article
- Co-phylogenetic analysis of Anaplasma phagocytophilum and its vectors, Ixodes spp. ticks.Experimental & applied acarology · 2008Article
- Anaplasma platys in dogs, Chile.Emerging infectious diseases · 2007Article
- Contribution of polymorphisms in ankA, gltA, and groESL in defining genetic variants of Anaplasma phagocytophilum.Journal of clinical microbiology · 2007Article
- Sequence analysis of the msp4 gene of Anaplasma phagocytophilum strains.Journal of clinical microbiology · 2005Article
- Genetic variants of Anaplasma phagocytophilum infecting dogs in Western Washington State.Journal of clinical microbiology · 2005Article
- Polymorphism and transcription at the p44-1/p44-18 genomic locus in Anaplasma phagocytophilum strains from diverse geographic regions.Infection and immunity · 2004Article
- Anaplasma phagocytophilum has a functional msp2 gene that is distinct from p44.Infection and immunity · 2004Article
- High diversity of ankA sequences of Anaplasma phagocytophilum among Ixodes ricinus ticks in Germany.Journal of clinical microbiology · 2003Article
- Serotyping isolates of Anaplasma phagocytophilum by using monoclonal antibodies.Clinical and diagnostic laboratory immunology · 2003Article
Corrections and comments
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Authors and funding
4 authors at 2 institutions in 1 country.
Funding
Abstract
We examined 11 naturally occurring isolates of Ehrlichia equi in horses and two human granulocytic ehrlichiosis agent isolates in California for sequence diversity in three genes. Ehrlichia equi isolates were from Sierra (n = 6), Mendocino (n = 3), Sonoma (n = 1), and Marin (n = 1) counties, and human granulocytic ehrlichiosis (HGE) agent isolates were obtained from Humboldt county. PCR with specific primers for 16S rRNA, 444 Ep-ank and groESL heat shock operon genes successfully produced amplicons for all 13 clinical samples. The 444 Ep-ank gene of the HGE agent and E. equi isolates from northern California is different from the eastern U.S. isolates BDS and USG3. The translated amino acid sequence of the groESL heat shock operon gene fragment is identical among E. equi, the HGE agent, and E. phagocytophila, with the exception of the northern Californian equine CASOLJ isolate. Microheterogeneity was observed in the 16S rRNA gene sequences of HGE agent and E. equi isolates from northern California. These results suggest that E. equi and the HGE agent found in California are similar or identical but may differ from the isolates of equine and human origin found in the eastern United States.
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