Evidence map›Paper›PMID 20308297›Full record

ArticleInfection and immunity2010

Genome sequencing of recent clinical Chlamydia trachomatis strains identifies loci associated with tissue tropism and regions of apparent recombination.

Brendan M Jeffrey, Robert J Suchland, Kelsey L Quinn, John R Davidson, Walter E Stamm, Daniel D Rockey

Abstract readComparative Study
In one paragraph

Article in Infection and immunity, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 82 papers.

0numbers the graph read from it
0cells of the map it votes in
82citing papers in PubMed
9.7field-weighted citation impact, top 1% 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

82 citing papers in PubMed, 119 citations in OpenAlex.

  1. Article
  2. Visual Screening of Genetic Polymorphisms inSensors (Basel, Switzerland) · 2026
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  3. Journal of bacteriology · 2025
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  4. Microbial genomics · 2025
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  7. Genetic Characterization of Non-International journal of molecular sciences · 2023
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  8. Patterns of within-host spread ofbioRxiv : the preprint server for biology · 2023
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  9. Review
  10. Patterns of within-host spread ofFrontiers in microbiology · 2023
    Article
  11. Article
  12. The Impact of Lateral Gene Transfer inFrontiers in cellular and infection microbiology · 2022
    Review
  13. Completing the Genome Sequence ofPathogens (Basel, Switzerland) · 2021
    Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Chromosomal Recombination Targets inJournal of bacteriology · 2019
    Article
  20. Article

22 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

6 authors at 2 institutions in 1 country.

Brendan M JeffreyDepartment of Biomedical Sciences, Oregon State University, Corvallis, Oregon 97331-4804, USA.
Robert J Suchland
Kelsey L Quinn
John R Davidson
Walter E Stamm
Daniel D Rockey
Oregon State University · USUniversity of Washington · US

Funding

PHS HHS A1031448PHS HHS A148769
6 · The paper itself

Abstract

The human pathogen Chlamydia trachomatis exists as multiple serovariants that have distinct organotropisms for different tissue sites. Culture and epidemiologic data have demonstrated that serovar G is more prevalent, while serovar E is less prevalent, for rectal isolates from men having sex with men (MSM). The relative prevalence of these serovars is the opposite for isolates from female cervical infections. In contrast, the prevalence of serovar J isolates is approximately the same at the different tissue sites, and these isolates are the only C-class strains that are routinely cultured from MSM populations. These correlations led us to hypothesize that polymorphisms in open reading frame (ORF) sequences correlate with the different tissue tropisms of these serovars. To explore this possibility, we sequenced and compared the genomes of clinical anorectal and cervical isolates belonging to serovars E, G, and J and compared these genomes with each other, as well as with a set of previously sequenced genomes. We then used PCR- and restriction digestion-based genotyping assays performed with a large collection of recent clinical isolates to show that polymorphisms in ORFs CT144, CT154, and CT326 were highly associated with rectal tropism in serovar G isolates and that polymorphisms in CT869 and CT870 were associated with tissue tropism across all serovars tested. The genome sequences collected were also used to identify regions of likely recombination in recent clinical strains. This work demonstrated that whole-genome sequencing along with comparative genomics is an effective approach for discovering variable loci in Chlamydia spp. that are associated with clinical presentation.

Indexed as

Genome, BacterialRecombination, GeneticAnal CanalCervix UteriChlamydia trachomatisDNA, BacterialFemaleHumansLymphogranuloma VenereumMaleMolecular Sequence DataPolymorphism, GeneticSequence Analysis, DNAVirulence FactorsDNA, BacterialVirulence Factors

Identifiers

PMID20308297
PMCPMC2876530
OpenAlexW2034054997

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.