title: [Detection and sequential analysis of Granulocytic ehrlichia 444-Epank gene].
abstract: OBJECTIVE
  To provide further pathogenic evidence of Granulocytic ehrlichia infection in China.
  
  
  METHODS
  Specific primers derived from 444-Epank gene were used to amplify Granulocytic ehrlichia DNA from specimens of ticks, animals and human blood. PCR products of ticks were cloned and sequenced.
  
  
  RESULTS
  444 bp specific DNA fragments were amplified from 2 of 62 pools of Ixodes persulcatus collected from Heilongjiang province and 1 of 129 blood specimens from forest workers in Inner Mongolia. Eight animal specimens were negative. PCR products from ticks were then cloned and sequenced. It differed at 23 positions in comparison to American strain (AF047897) with 94.9% homology. The homology of deduced ammonia was 88.44%.
  
  
  CONCLUSIONS
  Our findings further confirmed that Granulocytic ehrlichia infection did exist in China.
authors.affiliation: Department of Epidemiology, Institute of Microbiology and Epidemiology of Acadmy of Military Medical Science, Beijing 100071, China.
authors.forename: Qiumin
authors.initials: Q
authors.lastname: Zhao
authors.forename: Wuchun
authors.initials: W
authors.lastname: Cao
authors.forename: Jianmin
authors.initials: J
authors.lastname: Li
authors.forename: Panhe
authors.initials: P
authors.lastname: Zhang
authors.forename: Shanhu
authors.initials: S
authors.lastname: Chen
authors.forename: Kexin
authors.initials: K
authors.lastname: Cao
authors.forename: Dongqi
authors.initials: D
authors.lastname: Gao
authors.forename: Hong
authors.initials: H
authors.lastname: Yang
authors.forename: Xitan
authors.initials: X
authors.lastname: Zhang
mesh_terms: D004269:DNA, Bacterial / Q000032:analysis; D004536:Ehrlichia / Q000145:classification / Q000235:genetics / Q000302:isolation & purification*; D016873:Ehrlichiosis / Q000382:microbiology*; D005798:Genes, Bacterial; D006801:Humans; D010802:Phylogeny; D016133:Polymerase Chain Reaction; D017422:Sequence Analysis, DNA
chemical_list: D004269:DNA, Bacterial