ArticleJournal of clinical microbiology2002
Analysis of sequences and loci of p44 homologs expressed by Anaplasma phagocytophila in acutely infected patients.
Article in Journal of clinical microbiology, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.
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Who cites it
28 citing papers in PubMed, 48 citations in OpenAlex.
- Generation of Population-Level Diversity inPathogens (Basel, Switzerland) · 2025Article
- Proteomic analysis of Anaplasma phagocytophilum during infection of human myeloid cells identifies a protein that is pronouncedly upregulated on the infectious dense-cored cell.Infection and immunity · 2011Article
- Mechanisms of obligatory intracellular infection with Anaplasma phagocytophilum.Clinical microbiology reviews · 2011Review
- Cloning of the major outer membrane protein expression locus in Anaplasma platys and seroreactivity of a species-specific antigen.Journal of bacteriology · 2011Article
- Anaplasma phagocytophilum and Ehrlichia chaffeensis: subversive manipulators of host cells.Nature reviews. Microbiology · 2010Review
- Diversity of Anaplasma phagocytophilum strains, USA.Emerging infectious diseases · 2009Article
- Differential expression and glycosylation of anaplasma phagocytophilum major surface protein 2 paralogs during cultivation in sialyl Lewis x-deficient host cells.Infection and immunity · 2009Article
- The Anaplasma phagocytophilum PleC histidine kinase and PleD diguanylate cyclase two-component system and role of cyclic Di-GMP in host cell infection.Journal of bacteriology · 2009Article
- Anaplasma phagocytophilum MSP2(P44)-18 predominates and is modified into multiple isoforms in human myeloid cells.Infection and immunity · 2008Article
- Outer membrane protein sequence variation in lambs experimentally infected with Anaplasma phagocytophilum.Infection and immunity · 2008Article
- Anaplasma phagocytophilum p44 mRNA expression is differentially regulated in mammalian and tick host cells: involvement of the DNA binding protein ApxR.Journal of bacteriology · 2007Article
- Identification of novel surface proteins of Anaplasma phagocytophilum by affinity purification and proteomics.Journal of bacteriology · 2007Article
- Porin activity of Anaplasma phagocytophilum outer membrane fraction and purified P44.Journal of bacteriology · 2007Article
- Structure of the expression site reveals global diversity in MSP2 (P44) variants in Anaplasma phagocytophilum.Infection and immunity · 2006Article
- Analysis of involvement of the RecF pathway in p44 recombination in Anaplasma phagocytophilum and in Escherichia coli by using a plasmid carrying the p44 expression and p44 donor loci.Infection and immunity · 2006Article
- Two monoclonal antibodies with defined epitopes of P44 major surface proteins neutralize Anaplasma phagocytophilum by distinct mechanisms.Infection and immunity · 2006Article
- Comparative genomics of emerging human ehrlichiosis agents.PLoS genetics · 2006Article
- Novel genetic variants of Anaplasma phagocytophilum, Anaplasma bovis, Anaplasma centrale, and a novel Ehrlichia sp. in wild deer and ticks on two major islands in Japan.Applied and environmental microbiology · 2006Article
- Anaplasma phagocytophilum-infected ticks, Japan.Emerging infectious diseases · 2005Article
- Establishment of cloned Anaplasma phagocytophilum and analysis of p44 gene conversion within an infected horse and infected SCID mice.Infection and immunity · 2005Article
Corrections and comments
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Authors and funding
8 authors at 3 institutions in 1 country.
Funding
Abstract
Anaplasma phagocytophila is an obligatory intragranulocytic bacterium that causes human granulocytic ehrlichiosis. Immunodominant 44-kDa outer membrane proteins of A. phagocytophila are encoded by a p44 multigene family. In the present study, expression profiles of p44 genes in the blood of acutely infected patients in the year 2000 were characterized. A single p44 gene was predominantly expressed in peripheral blood leukocytes from one patient, while up to 17 different p44 genes were transcribed without a single majority in the other two patients. The cDNA sequences of the central hypervariable region of several p44 genes were identical among the isolates from the three patients and a 1995 A. phagocytophila isolate. A. phagocytophila was isolated by cell culture from all of the three 2000 patients. Genomic Southern blot analysis of the three 2000 and two 1995 A. phagocytophila isolates with probes specific to the most dominant p44 transcript in each patient showed that the p44 loci in the A. phagocytophila genome were conserved. Analysis of the predicted amino acid sequences of 43 different p44 genes including 19 new sequences found in the present study, revealed that five amino acids were absolutely conserved. The hypervariable region was subdivided into five domains, including three extremely hypervariable central domains. These results suggest that variations in the sequences of p44 are not random but are restricted. Furthermore, several p44 genes are not hypermutatable in nature, based on the conservation of gene sequences and loci among isolates obtained 5 years apart.
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