Evidence map›Paper›PMID 10948155›Full record

ArticleInfection and immunity2000

ankA: an Ehrlichia phagocytophila group gene encoding a cytoplasmic protein antigen with ankyrin repeats.

P Caturegli, K M Asanovich, J J Walls, J S Bakken, J E Madigan, V L Popov, J S Dumler

Open access · greenAbstract read
In one paragraph

Article in Infection and immunity, 2000. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 75 papers.

0numbers the graph read from it
0cells of the map it votes in
75citing papers in PubMed
3.3field-weighted citation impact, top 9% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

75 citing papers in PubMed, 141 citations in OpenAlex.

  1. In Saccharomyces cerevisiae ΔRIB1 and ΔRIB4 mutants, riboflavin auxotrophy is reverted by Wolbachia (wStr) infection.International microbiology : the official journal of the Spanish Society for Microbiology · 2026
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  5. First molecular evidence ofOpen veterinary journal · 2024
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  6. crANKing up the infection: ankyrin domains inInfection and immunity · 2024
    Review
  7. Review
  8. Frontiers in cellular and infection microbiology · 2022
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  9. Article
  10. Article
  11. Article
  12. Frontiers in immunology · 2021
    Review
  13. Global Transcription Profiles ofFrontiers in veterinary science · 2020
    Article
  14. Review
  15. Genome-WideFrontiers in cellular and infection microbiology · 2016
    Article
  16. Article
  17. Review
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  20. Article

15 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 5 institutions in 1 country.

P CaturegliDepartment of Pathology, The Johns Hopkins University School of Medicine, Baltimore, Maryland 21201, USA.
K M Asanovich
J J Walls
J S Bakken
J E Madigan
V L Popov
J S Dumler
Johns Hopkins University · USUniversity of California, Davis · USJohns Hopkins Medicine · USThe University of Texas Medical Branch at Galveston · USUniversity of Maryland, Baltimore · US

Funding

Virulence and Immunity of Granulocytic EhrlichiaeR01AI041213 · NIAID · JOHNS HOPKINS UNIVERSITY · PI DUMLER, JOHN STEPHEN · 1996 to 2005
$1.3M
Virulence and Immunity of Granulocytic EhrlichiaeR56AI041213 · NIAID · JOHNS HOPKINS UNIVERSITY · PI DUMLER, JOHN STEPHEN · 2007 to 2007
$450k
NIAID NIH HHS AI41213-01NIAID NIH HHS R01 AI041213NIAID NIH HHS R56 AI041213
6 · The paper itself

Abstract

Human granulocytic ehrlichiosis (HGE) is a potentially fatal, tick-borne disease caused by a bacterium related or identical to Ehrlichia phagocytophila. To identify and characterize E. phagocytophila group-specific protein antigen genes, we prepared and screened HGE agent and Ehrlichia equi genomic DNA expression libraries using polyclonal equine E. equi antibodies. Two clones, one each from HGE agent and E. equi, that were recognized specifically by antibodies to the E. phagocytophila group ehrlichiae had complete open reading frames of 3,693 and 3,615 nucleotides, respectively. The two clones were 96.6% identical and predicted a protein with at least 11 tandemly repeated ankyrin motifs. Thus, the gene was named ank (for ankyrin). When the encoded protein, named AnkA, was expressed in Escherichia coli, it was recognized by antibodies from rabbits and mice immunized with the HGE agent, sera from humans convalescent from HGE, and sera from horses convalescent from HGE and E. equi infection. Monospecific AnkA antibodies reacted with proteins in HGE agent immunoblots, and AnkA monoclonal antibodies detected cytoplasmic antigen in E. phagocytophila group bacteria and also detected antigen associated with chromatin in infected but not uninfected HL-60 cell cultures. These results suggest that this Ehrlichia protein may influence host cell gene expression.

Indexed as

Ankyrin RepeatGenes, BacterialAmino Acid SequenceAnimalsAnkyrinsAntigens, BacterialEhrlichiaEhrlichiosisHL-60 CellsHumansMiceMolecular Sequence DataRabbitsTick-Borne DiseasesAnkyrinsAntigens, Bacterial

Identifiers

PMID10948155
PMCPMC101789
OpenAlexW2155914072

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.